Most Important Computer Question with Answer

1. Multi user systems provided cost savings for small business because they use a single processing unit to link several
A) Personal computers
B) Workstations
C) Dumb terminals
D) Mainframes

2. What are the three decisions making operations performed by the ALU of a computer?
A) Grater than
B) Less than
C) Equal to
D) All of the above

3. Which of the following is not a processor used in PC?
A) Pentium
B) Athlon
C) AMD K6
D) Zylog

4. Of the following, which one is a hardware?

A) System unit
B) Lotus
C) Vista
D) DOS

5. Algorithm and Flow chart help us to
A) Know the memory capacity
B) Identify the base of a number system
C) Direct the output to a printer
D) Specify the problem completely and clearly

6. Which statement is valid about computer program?
A) It is understood by a computer
B) It is understood by programmer
C) It is understood user
D) Both a & b

7. The difference between memory and storage is that memory is _____ and storage is __
A) Temporary, permanent
B) Permanent, temporary
C) Slow, fast
D) All of above

8. A complete microcomputer system consist of---
A) microprocessors
B) memory
C) peripheral equipment
D) all of a, b, and c 

9. Which of the following statement is valid?
A) Lady Augusta is the first programmer
B) Ada is the daughter of Lord Byron, a famous English poet
C) ADA is a programming language developed by US Defense
D) All of above

10. A compiler is a translating program which
A) Translates instruction of a high level language into machine language
B) Translates entire source program into machine language program
C) It is not involved in program’s execution
D) All of above

11. What is required when more than one person uses a central computer at the same time?
A) Light pen
B) Mouse
C) Digitizer
D) Terminal

12. Which of the following is the first computer to use Stored Program Concept?
A) UNIVAC
B) ENIAC
C) EDSAC
D) None of above

13. The term terabyte refers to
A) 1024 bytes
B) 1024 kilobytes
C) 1024 megabytes
D) 1024 gigabyte

14. Intel Pentium is a--
A) Hard disk
B) RAM
C)  CD ROM
D)  Processor 

15. Once you load the suitable program and provide required data, computer does not need human intervention. This feature is known as
A) Accuracy
B) Reliability
C) Versatility
D) Automatic

16. What is a brand?
A) The name of companies that made computers
B) The name of product a company gives to identify its product in market
C) A name of class to indicate all similar products from different companies
D) All of above

17. Machine language is
A) Machine dependent
B) Difficult to program
C) Error prone
D) All of above

18. The brain of a computer within the CPU is-----
A) ALU
B) Register
C) Control Unit
D) RAM 

19. Modern Computers are very reliable but they are not
A) Fast
B) Powerful
C) Infallible
D) Cheap

20. Which one is not a part of CPU?
A)  Register
B) Arithmetic Unit
C) Logic Unit Execution Unit
D) Logic Unit

E) Memory

Basic Computer question with answer

1. Instruction in computer languages consists of
A) OPCODE
B) OPERAND
C) Both of above
D) None of above

2. Which generation of computer is still under development
A) Fourth Generation
B) Fifth Generation
C) Sixth Generation
D) Seventh Generation

3. A register organized to allow to move left or right operations is called a ____
A) Counter
B) Loader
C) Adder
D) Shift register

4. VLSI Stand for---
A) Very Large Scale Integration
B) Very Large System Integration
C) Very Long Scale Integration
D) Very Long System Integration 

5. Which is considered a direct entry input device?
A) Optical scanner
B) Mouse and digitizer
C) Light pen
D) All of the above

6. Among the computer generations, www, HTML, DVD, etc are some of the popular inventions of which generation?
A) 3^rd
B) 4^th
C) 5^th
D) 6^th

 

7. Each set of Napier’s bones consisted of ______ rods.
A) 5
B) 9
C) 11
D) 13

8.  How many parts are there in a computer system?
A) 2
B) 4
C) 6
D) 8

9.IPOS cycle includes Input, Processing, Output and?
A) Storage
B) System
C) Syntax
D) Simulation 

10. From which generation operating systems were developed?
A) First
B) Second
C) Third
D) Fourth

11. 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

12. 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

13. Properly arranged data is called
A) Field
B) Words
C) Information
D) File

14. A computer consists of
A) A central processing unit
B) A memory
C) Input and output unit
D) All of the above

15. 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

16. John Napier invented Logarithm in
A) 1614
B) 1617
C) 1620
D) None of above

17. 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

18. 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

19. 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

20. Which of the following is used as a primary storage device?
A) Magnetic drum
B) Hard Disks
C) Floppy
D) All of above

Important Computer Question with Answer

1. The standard of CD-ROM is-----

A) 10 cm diameter
B) 8 cm diameter
C) 11 cm diameter
D) 12 cm diameter

2. Computers with 80286 microprocessor is
A) XT computer
B) AT comptuers
C) PS/2 computer
D) None of above

3. Supercomputers are those which:
A) Contain a large single chip
B) Can perform billions of calculations per seconds
C) Are found thousands of place around the world
D) Are designed to process thousands of accounting applications.

4. Which type of computer are also called midrange computers?
A) PC
B) Minicomputer
C) Mainframe Computer
D) Super Computer 

 

5. The digital computer was developed primarily in
A) USSR
B) Japan
C) USA
D) UK

6. What is ‘Laptop”?
A) Small Dog
B) Musical Instruments
C) Smart Phone
D) Small Computer

47. Today’s computer giant IBM was earlier known by different name which was changes in 1924. What was that name?
A) Tabulator Machine Co.
B) Computing Tabulating Recording Co.
C) The Tabulator Ltd.
D) International Computer Ltd

.

8. Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?
A) Track number
B) Sector number
C) Surface number
D) All of above

9. The arranging of data in a logical sequence is called
A) Sorting
B) Classifying
C) Reproducing
D) Summarizing

10. What is the responsibility of the logical unit in the CPU of a computer?
A) To produce result
B) To compare numbers
C) To control flow of information
D) To do math’s works

11. Abacus was the first
A) electronic computer
B) mechanical computer
C) electronic calculator
D) mechanical calculator

12. 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

13. Instructions and memory address are represented by
A) Character code
B) Binary codes
C) Binary word
D) Parity bit

14. PDA Stands for----
A) Personal digital assistant
B) Portable document accessories
C) Personal digital account
D) Personal document format

15. A set of flip flops integrated together is called ____
A) Counter
B) Adder
C) Register
D) None of the above

16. People often call ______ as the brain of computer system
A) Control Unit
B) Arithmetic Logic Unit
C) Central Processing Unit
D) Storage Unit

17. Which is used for manufacturing chips?
A) Bus
B) Control unit
C) Semiconductors
D) A and b only

18. The value of each bead in heaven is
A) 1
B) 3
C) 5
D) 7

19. The first computer introduced in Bangladesh was
A) IBM 1620
B) IBM 1401
C) IBM 1420
D) IBM 1422

20. 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