1. What is Full form of DVD?

Answer:- Digital Versatile Disc

 

2. What the Storage Capacity of Floppy Disk Drive?

Ans. :- 1.44 MB

 

3. Which memory volatile memory?

Ans. :- RAM is a volatile memory.

 

4. What are 3 main parts of CPU?

Ans . ALU, CU and Registers.

 

5. What are characteristics of computer?

Ans . ( 1 ) Speed ( ii ) Storage ( iv ) Versatility ( vi ) Automatic operation ( iii ) Accuracy ( v ) Diligence ( vii ) Obedience

 

6. What are limitations of computer?

Ans . ( i ) Zero 1Q ( ii ) Does learn from past experience . (iii ) No feelings

 

7. Name the input device which is mostly used to play games on the computer.

Ans. Joystick

 

8. What is main memory?

Ans. The main storage region of a computer, to which the central processor has immediate or direct access.

 

9. You want to insert your photo (printed on paper) in computer , which device will you  use?

Ans. Scanner.

 

10. What are the common types of monitor?

Ans. 1. CRT monitor                  2. LCD monitor              3. LED monitor.

 


11. What are two types of printer?

Ans. -Impact printers and Non - Impact printers.

 

12. What are the two types of memory unit?

Ans. Primary memory and secondary memory.

 

13. What is the storage capacity of Blu-ray disc?

Ans . Storage capacity of Blu-ray disc is upto 25GB .

 

14. What are two main things a computer is made up of?

Ans. A computer is made up of two things, hardware and software.

 

15. Write any 5 input device name.

Ans. Input device name:-

1. Mouse 2.Keyboard 3. Light Pen 4. Scanner 5. Joystick 6. Microphone

 

16. Write any 5 Output device.

Ans. Output device name:-

1. Monitor 2. Speaker 3. Printer 4. Projector 5. Plotter

 

17. What is a program?

Ans. A program is a set of instructions.

 

18. What are the types of software?

Ans. System Software, Application Software, and Utility Software.

 

19. What are the types of system software?

Ans. Operating System, Device Drivers and Language translators (Compiler, Interpreters and Assemblers).

 

20. Give any 2 example of GUI operating system.

Ans. 1. Windows 2. Linux

 

21. What are the categories of application software?

Ans. General - purpose application software and specific purpose application software.

 

22. What are the four main categories of computer network?

Ans . ( i ) LAN ( ii ) MAN ( iii ) WAN ( iv ) PAN

 

 

23. In your school computer room LAN is required. Which type of cable will be needed for cost effective wired network?

Ans , Ethernet cable

 

 

24. At your home, you have a cable TV connection. Which type of wire is used by your cable TV operator?

Ans . Co - axial cable i

 

 

 

25. Which type of cable is being used for high bandwidth data transmission over long distance?

Ans , Optical fiber cable .

 

 

26. Which wireless technology is being used for data transfer between mobile to mobile nowadays?

Ans . Bluetooth technology .

 

 

27 . At your home you must have used remote to use TV. Which technology is used in these devices?

Ans , Infrared technology .

 

 

28.What is data encryption?

Ans. Data encryption is a way of translating data from plaintext (unencrypted) to ciphertext (encrypted). Users can access encrypted data with an encryption key and decrypted data with a decryption key. 

 

 

29. What is use of Modem?

Ans. A modem is a device that modulates or demodulates the signal. It maintains a dedicated connection with the ISP to get the internet connection for home or business.

 

 30. Write the Storage unit of computer.

Ans. 

Bit

1 or 0

Byte

8 bits

Kilobyte

1024bytes

Megabyte

1024kilobytes

Gigabyte

1024megabytes

Terabyte

1024gigabytes

Petabyte

1024terabytes

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