Computer Organization and Architecture Mcqs

Page No. 27

The best mode of connection between devices which need to send or receive large amounts of data over a short distance is _____


aBUS


bSerial port


cParallel port


dIsochronous port


View Answer Parallel port

To overcome multiple signals being generated upon a single press of the button, we make use of ______


aGenerator circuit


bDebouncing circuit


cMultiplexer


dXOR circuit


View Answer Debouncing circuit

The _____ circuit enables the generation of the ASCII code when the key is pressed.


aGenerator


bDebouncing


cEncoder


dLogger


View Answer Encoder

In a serial port interface, the INTR line is connected to _____


aStatus register


bShift register


cChip select


dNone of the mentioned


View Answer Status register

The standard used in serial ports to facilitate communication is _____


aRS-246


bRS-LNK


c RS-232-C


dBoth RS-246 and RS-LNK


View Answer RS-232-C

The data transfer in UART is done in ______


aAsynchronous start stop format


bSynchronous start stop format


cIsochronous format


dEBDIC format



UART stands for ________


aUniversal Asynchronous Relay Transmission


bUniversal Accumulator Register Transfer


cUniversal Asynchronous Receiver Transmitter


dNone of the mentioned



______ to increase the flexibility of the serial ports.


aThe wires used for ports is changed


bThe ports are made to allow different clock signals for input and output


cThe drivers are modified


dAll of the mentioned



The double buffer is used for _________


aEnabling retrieval of multiple bits of input


bCombining the input and output operations


cExtending the buffer capacity


dNone of the mentioned



The serial port is used to connect basically _____ and processor.


aI/O devices


bSpeakers


cPrinter


dMonitor


View Answer I/O devices

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