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Computer Hardware MCQs | Computer Hardware Multiple Choice Questions(MCQs) and Answers

Free download in PDF Computer Hardware Multiple Choice Questions(MCQs) and Answers. These short objective type questions with answers are very important for competitive exams like UGC NET, GATE, IBPS Specialist Recruitment Test.
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(1) RAM' stands for
[A] Random Access Memory
[B] Read Access Memory
[C] Read Arithmetic Memory
[D] Random Arithmetic Memory
Answer: Random Access Memory
(2) Devices that accepts data from outside computer and transfer into CPU are called
[A] input devices
[B] digital devices
[C] analogue devices
[D] truth table peripherals
Answer: input devices
(3) Devices such as mercury thermometer and kitchen scales are classified as
[A] digital devices
[B] analogue devices
[C] programmed devices
[D] signal led devices
Answer: analogue devices
(4) ESD would cause the most damage to which component?
[A] Power supply
[B] Expansion board
[C] Monitor
[D] Keyboard
Answer: Expansion board
(5) Which peripheral port provides the FASTEST throughput to laser printers?
[A] RS-232
[B] SCSI
[C] Parallel
[D] Serial
Answer: Parallel
(6) The 34-pin connection on an I/O card is for?
[A] Floppy drive
[B] SCSI drive
[C] IDE drive
[D] Zip drive
Answer: Floppy drive
(7) What beep codes could indicate a system board or power supply failure?
[A] steady short beep
[B] one long continuous beep tone
[C] steady long beeps
[D] All of the above
Answer: All of the above
(8) What command is used to reset a MODEM when using the "AT Command Set"?
[A] ATR
[B] ATZ
[C] DTR
[D] None of the above
Answer: ATZ
(9) Devices that are under control of computer and are directly connected to computer peripherals are termed as
[A] off-line devices
[B] on-line devices
[C] IN gate device
[D] IF gate device
Answer: on-line devices
(10) What product is used to clean smudged keys on a keyboard?
[A] TMC solvent
[B] Silicone spray
[C] Denatured alcohol
[D] All-purpose cleaner
Answer: All-purpose cleaner
(11) If any instruction consist of any arithmetic operation, data is transferred to
[A] quantitative unit
[B] qualitative unit
[C] arithmetic and logical unit
[D] central processing unit
Answer: arithmetic and logical unit
(12) Which type of system board is the MOST likely candidate for processor upgrading if you want maximum performance and future compatibility?
[A] ML
[B] PCI
[C] ISA
[D] None of the above
Answer: PCI
(13) The mouse pointer moves erratically, what is the possible cause? The mouse
[A] ball is dirty
[B] is not connected
[C] driver is not installed properly
[D] None of the above
Answer: ball is dirty
(14) The terms "red book", "yellow book", and "orange book" refer to:
[A] SCSI
[B] ide
[C] floppy drive technology
[D] CD-ROM standards
Answer: CD-ROM standards
(15) To view any currently running Terminate Stay Resident (TSR's) programs you could type:
[A] Memory
[B] MEM
[C] SYS /M
[D] None of the above
Answer: MEM
(16) When installing a SCSI CD-ROM drive, you must set the CD-ROM SCSI adapter to:
[A] B0007
[B] An unused SCSI address
[C] The same address as the SCSI device before the CD-ROM
[D] SCSI ID=1
Answer: An unused SCSI address
(17) 'main store' of CPU is also called
[A] main memory
[B] temporary memory
[C] immediate access store
[D] both A and C
Answer: both A and C
(18) Central Processing Unit (CPU) consists of
[A] control unit
[B] arithmetic and logic unit
[C] main store
[D] all of above
Answer: all of above
(19) To view any currently running Terminate Stay Resident (TSR's) programs you could type:
[A] Memory
[B] MEM
[C] SYS /M
[D] Memmaker
Answer: MEM
(20) Voltage is measured:
[A] in parallel
[B] in series
[C] after breaking the circuit
[D] after checking current
Answer: In parallel
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