Table of Contents
COMPUTER AWARENESS MCQ FOR COMPETITIVE EXAMS
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341. The first firm to mass-market a microcomputer as a personal computer was:
A) IBM
B) Super UNIVAC
C) Radio Shaks
D) Data General Corporation
ANSWER:C
342. How many address lines are needed to address each machine location in a 2048 X 4 memory chip?
A) 10
B) 11
C) 8
D) 12
ANSWER:B
343. Properly arranged data is called:
A) Field
B) Words
C) Information
D) File
ANSWER:C
344. A computer consists of:
A) A central processing unit
B) A memory
C) Input and output unit
D) All of the above
ANSWER:D
345. Why are vacuum tubes also called valves?
A) Because they can amplify the weak signals and make them strong
B) Because they can stop or allow the flow of current
C) Both of above
D) None of above
ANSWER:B
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346. John Napier invented Logarithm in:
A) 1614
B) 1617
C) 1620
D) None of above
ANSWER:A
347. An integrated circuit is:
A) A complicated circuit
B) An integrating device
C) Much costlier than a single transistor
D) Fabricated on a tiny silicon chip
ANSWER:D
348. What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?
A) Bus control
B) Interrupts
C) Bus arbitration
D) Status
ANSWER:C
349. Where as a computer mouse moves over the table surface, the trackball is:
A) Stationary
B) Difficult to move
C) Dragged
D) Moved in small steps
ANSWER:A
350. Which of the following is used as a primary storage device?
A) Magnetic drum
B) Hard Disks
C) Floppy
D) All of above
ANSWER:A
351. Abacus was the first:
A) electronic computer
B) mechanical computer
C) electronic calculator
D) mechanical calculator
ANSWER:D
352. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be :
A) 216
B) 65,536
C) 64K
D) Any of the above
ANSWER:B
353. Instructions and memory address are represented by:
A) Character code
B) Binary codes
C) Binary word
D) Parity bit
ANSWER:B
354. The terminal device that functions as a cash register, computer terminal, and OCR reader is the:
A) Data collection terminal
B) OCR register terminal
C) Video Display terminal
D) POS terminal
ANSWER:D
355. A set of flip flops integrated together is called ____ .
A) Counter
B) Adder
C) Register
D) None of the above
ANSWER:C
356. People often call ______ as the brain of computer system.
A) Control Unit
B) Arithmetic Logic Unit
C) Central Processing Unit
D) Storage Unit
ANSWER:C
357. Which is used for manufacturing chips?
A) Bus
B) Control unit
C) Semiconductors
D) A and b only
ANSWER:C
358. The value of each bead in heaven is:
A) 1
B) 3
C) 5
D) 7
ANSWER:C
359. The first computer introduced in Nepal was:
A) IBM 1400
B) IBM 1401
C) IBM 1402
D) IBM1402
ANSWER:B
360. Mnemonic a memory trick is used in which of the following language?
A) Machine language
B) Assembly language
C) High level language
D) None of above
ANSWER:B
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