Computer Science :: All Aptitude Test ::

1.One of the main feature that distinguish microprocessors from microcomputers is
A. words are usually larger in microprocessors
B. words are shorter in microprocessors
C. microprocessor does not contain I/O devices
D. words are usually larger in microprocessors

2.Which type of display is the latest to be used for portable computer?
A. LED display
B. LCD display
C. Plasma display
D. LED display

3.Which of the following is not true of future computers?
A. increased use of CAD/CAM techniques
B. faster turnaround time
C. developments in artificial intelligence systems
D. increased use of CAD/CAM techniques

4.The EAM device that does not use a control panel is the:
A. collator
B. reproducer
C. interpreter
D. collator

5.Whenever a peripheral is being controlled by the CPU, it is said to be online. If additionally, the computer files are updated as soon as any change takes place, the system is called
A. quick processing system
B. batch processing system
C. real time system
D. quick processing system

6.The following is true about 2-out of-5 code:
A. it is weighted code
B. it is unweighted code
C. it has odd parity
D. it is weighted code

7.The Josephson tunneling device illustrates principles associated with the advanced storage technique:
A. cryogenics
B. CCD
C. EBAM
D. cryogenics

8.Communication between computers using standard telephone service
A. Requires a change to an analog signal
B. Is the most efficient
C. Produces little noise and few disturbances
D. Requires a change to an analog signal

9.A floppy disk contains
A. Circular tracks only
B. Sectors only
C. Both circular tracks and sector
D. Circular tracks only

10.What is meant by quad-density (QD) diskette?
A. It is double-sided disk
B. It is double density disk
C. It has double the number of tracks per inch
D. It is double-sided disk

11.Large computer system typically uses:
A. Line printers
B. Ink-jet printers
C. Dot-matrix printers
D. Line printers

12.First generation computers are characterised by
A. Vaccum tubes and magnetic drum
B. Minicomputers
C. Magnetic tape and transistors
D. Vaccum tubes and magnetic drum

13.Can you tell what passes into and out from the computer via its ports?
A. Data
B. Bytes
C. Graphics
D. Data

14.What is the general name of the device which produces hardcopy graphics?
A. COM
B. Plotter
C. Printer
D. COM

15.When a disk stack is serviced by a comb-like access mechanism, there is one read/write head for each
A. disk
B. disk surface
C. track
D. disk

16.In comparison to the internal (main) memory, tape or disk memory is
A. slower and more expensive
B. slower and less expensive
C. faster and more expensive
D. slower and more expensive

17.Which of the following input/output devices is not associated with personal computers?
A. mice
B. color monitors
C. punched cards
D. mice

18.The ALU of a computer responds to the commands coming from
A. primary memory
B. control section
C. external memory
D. primary memory

19.The heart of any computer is the
A. CPU
B. Memory
C. I/O Unit
D. CPU

20.Which of the following are likely to jam the read/write head of a disk pack?
A. Dust
B. Smoke particle
C. Finger print smudge
D. Dust

21.Impact printers
A. strike a ribbon against the paper to produce character images
B. include ink-jet and thermal devices
C. are more expensive than Laser printers
D. strike a ribbon against the paper to produce character images

22.Which of the following is not a practical data-processing approach?
A. batch-sequential
B. batch-direct
C. immediate-sequential
D. batch-sequential

23.Bit map terminal
A. support displays containing multiple windows
B. requires considerable amount of video RAM
C. requires tremendous amount of copying and hence low performance
D. support displays containing multiple windows

24.A 32 bit microprocessor has the word length equal to
A. 2 bytes
B. 32 bytes
C. 4 bytes
D. 2 bytes

25.The register which holds the address of the location to or from which data are to be transferred is known as
A. index register
B. instruction register
C. memory address register
D. index register

26.In simplex transmission
A. Data format is simple
B. Data transmission is one way
C. Data can be transmitted to small distances only
D. Data format is simple

27.Each model of a computer has a unique
A. Assembly language
B. Machine language
C. High level language
D. Assembly language

28.Transistorized computer circuits were introduced in the
A. first generation
B. second generation
C. thir4 generation
D. first generation

29.Those microcomputers which have the same operating characteristics as the IBM microcomputers are called IBM
A. duplicates
B. clones
C. copies
D. duplicates

30.Communication ports are found on the back of microcomputers. They are used to connect the computer to _____
A. printers
B. modems
C. other hardware
D. printers


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