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


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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