Computer Organization and Architecture Mcqs

Page No. 24

n IBM’s S360/370 systems _____ lines are used to select the I/O devices.


aSCAN in and out

✓


bConnect

✖


cSearch

✖


dPeripheral

✖


View Answer SCAN in and out

The MSYN signal is initiated __________


aSoon after the address and commands are loaded

✖


bSoon after the decoding of the address

✓


cAfter the slave gets the commands

✖


dNone of the mentioned

✖



The devices with variable speeds are usually connected using asynchronous BUS.


aTrue

✓


bFalse

✖


ceither true either false

✖


dnone of the mentioned

✖


View Answer True

The master indicates that the address is loaded onto the BUS, by activating _____ signal.


aMSYN

✓


bSSYN

✖


cWMFC

✖


dINTR

✖


View Answer MSYN

The use of spooler programs or _______ Hardware allows PC operators to do the processing work at the same time a printing operation is in progress.


aRegisters

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bMemory

✖


cBuffer

✓


dCPU

✖


View Answer Buffer

Which most popular input device is used today for interactive processing and for the one line entry of data for batch processing?


aMouse

✓


bMagnetic disk

✖


c Visual display terminal

✖


dCard punch

✖


View Answer Mouse

User programmable terminals that combine VDT hardware with built-in microprocessor is _____


aKIPs

✖


b Pc

✖


cMainframe

✖


dIntelligent terminals

✓


View Answer Intelligent terminals

The status flags required for data transfer is present in _____


aDevice

✖


b Device driver

✖


cInterface circuit

✓


dNone of the mentioned

✖


View Answer Interface circuit

The Interface circuits generate the appropriate timing signals required by the BUS control scheme.


aTrue

✓


bFalse

✖


ceither true either false

✖


dnone of the mentioned

✖


View Answer True

The parallel mode of communication is not suitable for long devices because of ______


aTiming skew

✓


bMemory access delay

✖


cLatency

✖


dNone of the mentioned

✖


View Answer Timing skew

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