Computer Science :: All Aptitude Test ::

1.The first large scale electronic computer which became operational in 1946 and contained approximately 18000 vacuum tubes and could perform 300 multiplications per second was known as
A. ILLIAC
B. ENIAC
C. JOHNIAC
D. ILLIAC

2.A computer program that converts an entire program into machine language at one time is called a/an
A. interpreter
B. simulator
C. compiler
D. interpreter

3.A logic gate is an electronic circuit which
A. makes logic decisions
B. allows electron flow only in one direction
C. works on binary algebra
D. makes logic decisions

4.Identity the advantages that Micro Channel Architecture offers over ISA.
A. Automatic System Configuration
B. Less Interference
C. Multiple device handling (the system allows expansion boards to take complete of the bus for certain operations)
D. Automatic System Configuration

5.Computer scientists are exploring the possibility of culturing bacteria to create living chips which have digital electronic properties. What are these chips called?
A. bacterial chips
B. biochips
C. natural chips
D. bacterial chips

6.What is the name of the storage device which is used to compensate for the difference in rates of flow of data from once device to another?
A. Cache
B. Concentrator
C. Buffer
D. Cache

7.In latest generation computers, the instructions are executed
A. Parallely only
B. Sequentially only
C. Both sequentially an parallely
D. Parallely only

8.Program execution time would be minimum if the programs are written in
A. Machine Language
B. Assembly language
C. High level language
D. Machine Language

9.A small square or rectangular piece of silica on which several layers of an integrated circuit are etched or imprinted is called
A. VLSI
B. micro
C. wafer
D. VLSI

10.The processing capability of a microcomputer can be enhanced with the help of
A. addition processor
B. expansion cards
C. secondary memory
D. addition processor

11.Where are silicon chips manufactured in India?
A. Chandigarh
B. Punjab
C. UP.
D. Chandigarh

12.A computer programmer
A. does all the thinking for a computer
B. can enter input data quickly
C. can operate all types of computer equipment
D. does all the thinking for a computer

13.The three most important inventions of this century are the nuclear bomb, the high yield hybrid speed, and the computer. Can you name the person who made this statement?
A. Harry R Jordan
B. Buckminster Fuller
C. Jack Smith
D. Harry R Jordan

14.A menu-driven operating system is one which allows you to pick up from the menu of choices it displays on the screen. What is the name given to the images which are used in such image oriented menus?
A. Icon
B. Figure
C. Symbol
D. Icon

15.The first machine to successfully perform a long series of arithmetic and logical operations was:
A. ENIAC
B. Mark I
C. Analytic engine
D. ENIAC

16.Which is used for manufacturing chips?
A. Bus
B. Control unit
C. Semiconductors
D. Bus

17.The 0 and 1 in the binary numbering system are called binary digits or _____
A. bytes
B. kilobytes
C. decimal bytes
D. bytes

18.Floppy disks which are made from flexible plastic material are also called?
A. hard disks
B. high-density disks
C. diskettes
D. hard disks

19.Which of the following tasks is not suited for sequential processing by a computer?
A. Preparing of mailing labels
B. Processing payroll cheques
C. Accounting for credit card purchases
D. Preparing of mailing labels

20.Which of the following is responsible for coordinating various operations using timing signals?
A. Arithmetic-logic Unit
B. Control unit
C. Memory unit
D. Arithmetic-logic Unit

21.All calculations are performed and all comparisons are made in _____ unit.
A. control unit
B. aritmetic-logic unit
C. central processing unit
D. control unit

22.The most commonly used standard data code to represent alphabetical, numerical and punctuation characters used in Electronic Data Processing system is called
A. ASCII
B. EBCDII
C. BCD
D. ASCII

23.The terminal device often used in checking charge cards that offers both a limited keyboard input and visual output is the:
A. Intelligent terminal
B. POS terminal
C. Video display terminal
D. Intelligent terminal

24.The computer translates the condition of each switch to a number. What number is represented by the OFF state?
A. -7
B. -3.75
C. 1
D. -7

25.Hard disks and diskettes are:
A. Direct access storage devices
B. Sequential access storage devices
C. Rarely used with microcomputers
D. Direct access storage devices

26.In digital data transmission
A. Baud rate in equal to bit rate
B. Baud rate is always smaller than the bit rate
C. Baud rate is always higher than the bit rate
D. Baud rate in equal to bit rate

27.Which of the following is not one of the three primary functions that on-line direct-access systems can serve?
A. inquiry
B. backup
C. update
D. inquiry

28.How many bits can be stored in the 8K RAM?
A. 8000
B. 8192
C. 4000
D. 8000

29.A code which uses more bits for each character then what is necessary is known as
A. Hollerith code
B. Gray code
C. Redundant code
D. Hollerith code

30.Point out the odd item amongst the following
A. Computer mouse
B. Touchpad
C. Light pen
D. Computer mouse


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