COMPUTER KNOWLEDGE #22
MULTIPLE CHOICE QUESTIONS
1. Which
was the main electronic component used in first generation computers?
(a) Transistors
(b) Vacuum Tubes and Valves
(c) Integrated Circuits
(d) None of above
Answer:
(b)
2. A
dumb terminal has which of the following?
(a) An embedded microprocessor
(b) Extensive memory
(c) Independent processing capability
(d) A keyboard and screen
Answer:
(d)
3. One
millisecond is ……………
(a) 1 second
(b) 10th of a second
(c) 1000th of a second
(d) 10000th of a second
Answer:
(c)
4. The
output quality of a printer is measured by which of the following?
(a) Dot per sq. inch
(b) Dot per inch
(c) Dots printed per unit time
(d) All of the above
Answer:
(b)
5. Which
of the following was a special purpose computer?
(a) ABC
(b) ENIAC
(c) EDVAC
(d) All of the above
Answer:
(a)
6. What
was the computer invented by Attanasoff and Clifford?
(a) Mark I
(b) ABC
(c) Z3
(d) None of above
Answer:
(b)
7. Which
of the following storage devices can store maximum amount of data?
(a) Floppy Disk
(b) Hard Disk
(c) Compact Disk
(d) Magneto Optic Disk
Answer:
(b)
8. Which
computer was considered the first electronic computer until 1973 when court
invalidated the patent?
(a) ENIAC
(b) MARK I
(c) Z3
(d) ABC
Answer:
(a)
9. A
physical connection between the microprocessor memory and other parts of the
microcomputer is known as which of the following?
(a) Path
(b) Address bus
(c) Route
(d) All of the above
Answer:
(b)
10. High
density double sided floppy disks could store …………… of data.
(a) 1.40 MB
(b) 1.44 GB
(c) 1.40 GB
(d) 1.44 MB
Answer:
(d)
11. A
high quality CAD system uses which of the following for printing drawing and
graphs?
(a) Dot matrix printer
(b) Digital plotter
(c) Line printer
(d) All of the above
Answer:
(b)
12. Which
of the following is not an input device
(a) OCR
(b) Optical scanners
(c) Voice recognition device
(d) COM (Computer Output to Microfilm)
Answer:
(d)
13. The
accuracy of the floating-point numbers representable in two 16-bit words of a
computer is approximately ……………
(a) 16 digits
(b) 6 digits
(c) 9 digits
(d) All of above
Answer:
(a)
14. In
most of the IBM PCs, the CPU, the device drivers, memory, expansion slots and
active components are mounted on a single board. What is the name of the board?
(a) Motherboard
(b) Daughterboard
(c) Breadboard
(d) Fatherboard
Answer:
(a)
15. Magnetic
disks are the most popular medium for which of the following?
(a) Direct access
(b) Sequential access
(c) Both ‘a’ and ‘b’
(d) None of above
Answer:
(d)
16. A
technique used by codes to convert an analog signal into a digital bit stream
is known as which of the following?
(a) Pulse code modulation
(b) Pulse stretcher
(c) Query processing
(d) Queue management
Answer:
(a)
17. Regarding
a VDU, Which statement is more correct?
(a) It is an output device
(b) It is an input device
(c) It is a peripheral device
(d) It is hardware item
Answer:
(c)
18. A
modern electronic computer is a machine that is meant for which of the
following?
(a) Doing quick mathematical calculations
(b) Input, storage, manipulation and outputting of data
(c) Electronic data processing
(d) Performing repetitive tasks accurately
Answer:
(b)
19. When
was vacuum tube invented?
(a) 1900
(b) 1906
(c) 1910
(d) 1880
Answer:
(b)
20. Which
of the following produces the best quality graphics reproduction?
(a) Laser printer
(b) Ink jet printer
(c) Plotter
(d) Dot matrix printer
Answer:
(c)
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