MCQ
Computer Systems
Architecture - The Computer System - System
Buses
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Questions
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Opt 1
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Opt 2
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Opt 3
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Opt 4
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Ans
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A communication system that
transfers data between the components inside a computer or between computers
is called
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Port
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Bus
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Registers
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None of the Above
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B
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Which bus connects all the internal
components of a computer such as CPU and memory to the main
board(motherboard)?
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Expansion Bus
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External Bus
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Internal Bus
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None of the Above
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C
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A bus that connects a computer to
Peripheral devices is called?
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System Bus
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Memory Bus
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Front-Side Bus
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External Bus
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D
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External Bus is also referred as?
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System Bus
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Memory Bus
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Front-Side Bus
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Expansion Bus
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D
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The Command to access the memory or
the I/O device is carried by?
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Address Bus
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Data Bus
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Control Bus
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None of the Above
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C
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A computer bus that is used to
specify a Physical address?
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Address Bus
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Data Bus
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Control Bus
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None of the Above
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A
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A bus that transfer data from one
component to another or between computers is called?
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Address Bus
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Data Bus
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Control Bus
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None of the Above
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B
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RISC stands for?
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Reverse Instruction Set Computer
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Reverse Information Set Computer
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Reduced Information Set Computer
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Reduced Instruction Set Computer
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D
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________ is a register for
Short-term, intermediate storage of arithmetic and logic data in a Computers
CPU.
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Accumulator
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Bus
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Buffer
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None of the Above
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A
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_________ is a group of commands
for a CPU in machine language
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Information Set
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Instruction Set
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Buffer
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None of the Above
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B
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In multiple bus organization,
registers are collectively placed and referred as
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Set registers
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Register file
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Register block
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Map register
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B
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Bus which used to connect monitor
to CPU is?
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PCI bus
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SCSI bus
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Memory bus
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Ram bus
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B
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To extend connectivity of processor
bus we use?
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PCI bus
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SCSI bus
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Controllers
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Multiple bus
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A
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Main advantage of multiple bus
organization over single bus is?
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Reduction in a number of cycles for execution
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Increase in size of registers
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Better connectivity
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Fast speed
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A
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ISA standard buses are used to
connect?
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RAM and processor
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CPU and processor
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Hard disk and processor
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Sound drives and processor
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C
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To resolve the clash over the
access of the system BUS we use ______
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Multiple BUS
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BUS arbitrator
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Priority access
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None of the mentioned
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B
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The device which is allowed to
initiate data transfers on the BUS at any time is called _____
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BUS master
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Processor
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BUS arbitrator
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Controller
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A
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______ BUS arbitration approach
uses the involvement of the processor
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Centralised arbitration
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Distributed arbitration
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Random arbitration
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All of the mentioned
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A
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The Centralised BUS arbitration is
similar to ______ interrupt circuit
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Priority
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Parallel
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Single
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Daisy chain
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D
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When the processor receives the
request from a device, it responds by sending _____
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Acknowledge signal
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BUS grant signal
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Response signal
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None of the mentioned
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B
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In Centralised Arbitration ______
is/are is the BUS master
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Processor
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DMA controller
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Device
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Both Processor and DMA controller
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D
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Once the BUS is granted to a device
___________
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It activates the BUS busy line
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Performs the required operation
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Raises an interrupt
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All of the mentioned
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A
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The BUS busy line is made of
________
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Open-drain circuit
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Open-collector circuit
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EX-OR circuit
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NOR circuit
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B
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After the device completes its
operation _____ assumes the control of the BUS
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Another device
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Processor
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Controller
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None of the mentioned
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B
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The BUS busy line is used
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To indicate the processor is busy
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To indicate that the BUS master is busy
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To indicate the BUS is already allocated
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None of the mentioned
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C
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Distributed arbitration makes use of
______
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BUS master
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Processor
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Arbitrator
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4-bit ID
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D
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The main virtue for using single
Bus structure is,
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Fast data transfers
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Cost effective connectivity and speed
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Cost effective connectivity and ease of attaching peripheral devices
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None of these
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C
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______ are used to over come the
difference in data transfer speeds of various devices
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Speed enhancing circuitory
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Bridge circuits
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Multiple Buses
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Buffer registers
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D
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To extend the connectivity of the
processor bus we use ______
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PCI bus
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SCSI bus
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Controllers
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Multiple bus
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A
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Which of the following would be a
logical first step in troubleshooting a PC?
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Check the computer CMOS
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Define the circumstances of the problem
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Call the vendor
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Define what applications are being used
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B
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RAM stands for?
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Random Access Memory
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Read Access Memory
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Read Arithmetic Memory
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Random Arithmetic Memory
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A
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Teletypewriter terminal is an
example of
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Input devices
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Output devices
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Input/Output devices
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Storage devices
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C
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Devices that accepts data from
outside computer and transfer into CPU are called
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Input devices
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Digital devices
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Analogue devices
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Truth table peripherals
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A
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Central Processing Unit (CPU)
consists of
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Control unit
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Arithmetic and logic unit
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Main store
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All of above
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D
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Devices which are used to receive
data from central processing unit are classified as?
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Output/Input devices
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Digital devices
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Signaled devices
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Output devices
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D
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Place where large amounts of data
are stored outside central processing unit is called
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Backing store
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Peripherals
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Control unit
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AL unit
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A
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Devices that are under control of
computer and are directly connected to computer peripherals are termed as
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Off-line devices
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On-line devices
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N gate device
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IF gate device
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B
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If any instruction consist of any
arithmetic operation, data is transferred to
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Quantitative unit
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Qualitative unit
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Arithmetic and logical unit
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Central Processing Unit
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C
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Devices such as mercury thermometer
and kitchen scales are classified as
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Digital devices
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Analogue devices
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Programmed devices
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Signal led devices
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B
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If a quantity in device is treated
as different set of separate values, device is said to be
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Digital
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Analogues
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Signals
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Computer
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A
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Material on which data is stored or
an input/output is classified is termed as
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Mini frame medium
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Micro medium
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Macro medium
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Medium
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D
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Type of integrated circuit which
consists of arithmetic unit, control unit and some main store is called a
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Mega processor
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Micro processor
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Micro computers
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Mega computers
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B
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Visual display unit is an example
of
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Output device
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Input/Output devices
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Backup devices
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Mediums
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B
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Devices that are not connected to
computers central processing unit are classified as
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AND gate devices
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OR gate devices
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Off-line devices
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On-line devices
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C
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Keyboard and mouse are
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DC devices
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Analogue devices
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Truth table devices
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Input devices
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D
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Large computers with wide range of
peripheral devices are classified as
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Mainframe computers
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Mini frame computers
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Mainframe processors
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Peripheral interface
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A
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Computer for which processing is
used to be done with help of microprocessors is termed as
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Micro Processor
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Micro Computers
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Mega Processor
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Mega Computers
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B
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Actual equipment of computer system
that can be touched are
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Hardware
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Software
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Applications
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Bugs
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A
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Decoding and execution of
instructions rapidly, one after another is called
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AL unit
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Backup device
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Keyboard
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Control unit
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D
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Input and Output devices such as
monitors and keyboards are classified as
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Arithmetic units
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Control unit devices
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Peripheral devices
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Main store devices
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C
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ROM stands for
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Read only memory
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Random only memory
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Readily object memory
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Random available memory
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A
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Line printer, a voice synthesizer
and computer terminal screen are classic examples of
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Logic circuit devices
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Analogue circuit devices
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AND gate devices
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Output devices
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D
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Devices that are controlled by
central processing unit but are not a part of it are called
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Peripheral devices
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Arithmetic units
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Control unit devices
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Main store devices
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A
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Main categories of peripheral
devices are
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Input/output devices
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On-line devices
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Backing storage devices
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Both a and c
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D
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Two type of memories RAM and ROM
are part of
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Backup memory
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Main memory
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Shorter memory
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Long-term memory
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B
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Magnetic tape unit and magnetic
disc unit are classic example of
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Storage devices
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Backing storage devices
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On-line devices
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Off-line devices
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B
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Device in which data is represented
by continuous variable quantity is called
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Analogue device
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Computer device
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System programs
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Digital program
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A
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Small computers that are not
microcomputers are classified as
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Micro computers
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Mini computers
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Mainframe computers
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Mega processors
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B
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Circuit consisting of different
electronic components and connections are called
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Integrated circuits
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Interrelated circuits
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Inverting circuits
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Reversing circuits
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A
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Devices used to read to and write
from central processing unit are classified as
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Analogue circuit devices
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AND gate devices
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OR gate devices
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Backing storage devices
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D
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Microprocessors that are used for
one particular job are classified as
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Dedicated microprocessors
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Dedicated computers
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Dedicated microcomputers
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Dedicated mega computers
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A
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The following device allows the
user to add external components to a computer system
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Storage devices
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Keyboards
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Portal system boards
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Diskettes
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C
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A removable direct-access storage
medium containing multiple magnetic disks mounted vertically on a
single-shaft is referred as
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Tape pack
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Disk pack
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Cylinder
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None of these
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B
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Diskette is a
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A low-cost, thin flexible magnetic disk storage device
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High volume storage device
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Primary storage device
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None of these
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A
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An optical Input device that is
used to read documents printed in a special type font Is known as
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Document reader
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Documentation
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Printer
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None of these
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A
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Digitizer Is an Input device
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Used to convert graphic and pictorial data Into binary Inputs for a
digital computer
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Used to convert graphic and pictorial data Into analog Inputs for a
digital computer
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Used for debugging
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None of these
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A
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A storage devices where the access
time Is etfectivefy independent of the location of the data is referred as
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Direct access
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Secondary storage
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Primary storage
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None of these
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A
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The tolal time elapsed between
submission of command and data to a computer and getting the result of
computation Is the
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Access time
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Response time
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Entrance Time
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None of these
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B
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Constant is a value written into a
program instruction
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That does not change during the execution of the program
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That can change during the execution of the program
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That can vary during the execution of the program
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None of these
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A
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Technique of using disk space to
make programs believe that the system contains more random access memory
(RAM) than is actuaity available is called
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Virtual memory
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Secondary Memory
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Primary memory
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None of these
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A
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The hexadecimal number system has a
base of
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16
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2
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4
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8
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A
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Communications device, combines
transmissions from several devices into one line is
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Concentrator
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Multiplexer
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Modifier
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Full-duplex line
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B
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Which of the following devices can
be used to directly input printed text
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OCR
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OMR
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MICR
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None of the above
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A
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Modem stands for
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A type of secondary memory
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Modulator demodulator
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Mainframe operating device memory
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None of the above
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B
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Which of the following does not
represent on I/O device
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Speaker which beeps
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Joystick
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Plotter
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ALU
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D
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Terminal is
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Device to give power supply to computer
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Point at which data enters or leaves the computer
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The last instruction in a program
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Any input /output device
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D
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Magnetic tapes are good storage
media for
|
Backup the low volume data
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Backup the high volume data
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Storing original but low volume data
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Storing original but high volume data
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B
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ASCII code is a _______bit code
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1
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2
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7
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8
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C
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Memories which can be read only are
called _______ memories
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RAM
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ROM
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PROM
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EPROM
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B
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The use of parity bit is for
|
Coding
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Indexing
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Error-detection
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None of these
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C
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The following are basic types of
record access methods
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Sequential and random
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Direct and immediate
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Sequential and indexed
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On-line and real-time
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A
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Auxiliary storage is
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Secondary storage
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Primary storage
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Processing device
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None of these
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A
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A semiconductor memory which allows
the eraser of the information stored in it so that new information can be
stored in it is referred as
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EPROM
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ROM
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RAM
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None of these
|
D
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Which of the following is input or
output device?
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Monitors
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Punched cards
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Optical scanners
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All the above
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D
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A floppy disk contains
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Circular tracks only
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Sectors only
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Both circular tracks and sectors
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None of the above
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C
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A computer can be defined as an
electronic device that can be
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Used to carry out arithmetical operation
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Used to carry out logical functions
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Accept and process data using a set of stored instructions
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All of these
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D
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The total time elapsed between
submission of command and data to a computer and getting the result of
computation is the
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Access time
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Response time
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Entrance time
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None of these
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B
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|
A flat, circular plate coated with
a magnetic material on which data can be stored by magnetization of portions
of the flat surface is
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Disk
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Tape
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Pen drive
|
None of these
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A
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An automatic machine that is made
to perform routine human tasks is
|
Computer
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Robot
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Tanker
|
None of these
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B
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The access method used for magnetic
tape is_________
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Direct
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Random
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Sequential
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None of the above
|
C
|
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The primary memory of a personal
computer consists
|
ROM only
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RAM only
|
Both ROM and RAM
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Memory module
|
C
|
|
An advantage of the laser printer
in respect to impact printer is
|
It is quieter/faster
|
Output is of a high quality
|
Support wide range of type fonts
|
All the above
|
D
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|
Magnetic tape can serve as
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Input media
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Output media
|
Secondary-storage media
|
All the above
|
D
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|
In a disk system time required for
a read/ write head to move to the track where the record to be read or
written is stored is
|
Access time
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Random time
|
Response time
|
Seek time
|
D
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|
Following is not true for magnetic
tape
|
Low cost
|
Direct-access storage medium
|
Compact and portable
|
Highly reliable
|
B
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Buffer is device/storage area
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Where data are temporarily stored
|
Where data is permanently stored
|
Where data error occurs
|
None of these
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A
|
|
The following is an nonvolatile
memory
|
ROM
|
RAM
|
LSI
|
VLSI
|
A
|
|
The can be programmed one time by
either the manufacturer or the computer user. Once programmed, it cannot be
modified
|
RAM
|
ROM
|
PROM
|
EPROM
|
C
|
|
Bubble Memory is
|
Nonvolatile
|
Volatile
|
Permanent
|
None of these
|
A
|
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Cache memory is a
|
Small buffer storage
|
Permanent storage
|
Main memory
|
None of these
|
A
|
|
In Nonvolatile memory device
|
Data contained in them is not lost when the power turned off
|
Data contained in them is lost when the power turned off
|
Data contained in them is permanent and is not rewritable
|
None of these
|
A
|
|
Cache memory
|
Is a Static RAM
|
Increases the speed of processing by making current programs and data
available to the CPU at a rapid rate
|
Both A & B are true
|
Both A & B are false
|
C
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