Computer Knowledge

1. Number of bits in a byte is--

• ক. 8
• খ. 16
• গ. 2
• ঘ. 32

2. Which of the following is the save button in computer key board?

• ক. F12
• খ. F8
• গ. F6
• ঘ. F1

3. Which one is astorage device?

• ক. CPU
• খ. headphone
• গ. floppy disk
• ঘ. modem

4. The hexadecimal number 9 is equivalent to--

• ক. binary 1000
• খ. octal 5
• গ. binary 110
• ঘ. decimal 9

5. What is an icon?

• ক. Pictorial representation of an operation
• খ. Method of cutting and pasting
• গ. Flashing of display
• ঘ. Beefs, roars and shrieks in a video game

6. A complete microcomputer system consists of--

• ক. microprocessors
• খ. memory
• গ. peripheral equipment
• ঘ. all of A, B and C

7. Bar codes are most common in--

• ক. banks
• খ. medical labroatories
• গ. supermarkets
• ঘ. admission test

8. The computer stores its program and data in its--

• ক. ALU
• খ. control unit
• গ. memory
• ঘ. cache memory

9. What kind of secondary storage is provided by magnetic disks?

• ক. fast speed, high capacity
• খ. slow speed, high capacity
• গ. fast speed, low capacity
• ঘ. slow speed, low capacity

10. Records on magnetic tape are often grouped into -- in order to enhance reading/writing?

• ক. sectors
• খ. blocks
• গ. tracks
• ঘ. files

11. 1 byte is equal to--

• ক. 2 bits
• খ. 4 bits
• গ. 8 bits
• ঘ. 16 bits

12. Which one is not a part of CPU?

• ক. Arithmetic Unit
• খ. Logic Unit
• গ. Register
• ঘ. Execution Unit

13. Laser printers are known as--

• ক. character printers
• খ. line printers
• গ. page printers
• ঘ. graphic printers

14. Which is the largest unit of storage?

• ক. terabyte
• খ. kilobyte
• গ. megabyte
• ঘ. gigabyte

15. Which one is an output device?

• ক. Joystick
• খ. Microphone
• গ. Monitor
• ঘ. Hard Drive

16. The base 16 number system is--

• ক. Octal
• খ. Binary
• গ. Hexadecimal
• ঘ. Decimal

17. The brain of a computer within the CPU is—

• ক. ALU
• খ. Josephson Buble
• গ. Register
• ঘ. Control Unit

18. Data and instructions waiting to be processed and the resulting output are stored in-

• ক. Control Unit
• খ. Memory
• গ. Analog decoders
• ঘ. Logic unit

19. Which menu includes the command ‘find’?

• ক. Select
• খ. Format
• গ. Close
• ঘ. Edit

20. What is the permanent memory storage of a computer?

• ক. Software
• খ. ROM
• গ. RAM
• ঘ. CD

21. The type of scanner used in banking industry is—

• ক. OCR
• খ. CAT
• গ. OMR
• ঘ. MICR

22. CRTs, LEDs and LCDs are—

• ক. Used for output, not for input
• খ. Common types of display screens
• গ. Obsolete since the discovery of electrical mouse
• ঘ. NMR variations

23. Which software is more useful in preparing a report with statistical and accounting analysis?

• ক. Microsoft Word
• খ. Excel
• গ. Power Point
• ঘ. Access

24. What is the function of RAM in computer?

• ক. Storing data permanently
• খ. Processing data
• গ. Storing data temporarily
• ঘ. Generating graphics

25. Access time is made up of—

• ক. Seek time
• খ. Search time
• গ. Data transfer time
• ঘ. a, b and c