Friends, through this post we will get information about important questions about computers, which are very important from the examination point of view and computer knowledge.
These questions are asked again and again in examinations. So if you are preparing for any exam or are interested in gaining information related to computers, then you must read these important questions and answers about computers.
Important questions and answers about computer
1. Where was the first computer installed in India?
Answer: The first computer in India was installed in the Indian Statistical Institute, Calcutta.
2. When is Computer Literacy Day celebrated?
Answer – Computer Literacy Day is celebrated on 2 December.
3. Which country is considered to have the most computers in the world?
Answer – United States of America is considered to be the country with most computers in the world.
4. Who created the world’s first supercomputer?
Answer: The world’s first supercomputer was built by C-DAC.
5. Who is called the father of computer?
Answer – Charles Babbage is called the father of computers. Charles Babbage invented the computer in 1822. The name of the first computer invented by Charles Babbage is “Differential Engine”.
6. Which is called brain of computer?
Answer- CPU is called the brain of the computer.
7. What is the data going into the computer called?
Answer: The data going into the computer is called input.
8. What is the full name of BIOS?
Answer – The full name of BIOS is Basic Internal Output System. This word is actually the short form of Basic Input / Output System. This is build-in software that determines what the computer can do without accessing the programs from disk. The main function of BIOS is to boot the operating system on the PC.
9. Who is the inventor of WWW?
Answer- The inventors of WWW are Tim Berners Lee and Robert Cailliau. Both of them together invented WWW (World Wide Web) in 1989.
10. Which are the two popular output devices?
Answer- Two popular output devices are monitor and printer. Apart from this, other output devices also include Plotter, Projector, Speaker etc.
11. Which device is used to view all types of information or output of the computer?
Answer- Monitor is used to view all the information and output of the computer.
12. The medium of output is?
Answer: The medium of output is printer.
13. What is the full form of CD ROM?
Answer- The full form of CD ROM is Compact Disk Read Only Memory. Compact Disk Read Only Memory: This is an example of secondary memory.
14. What is the meaning of RAM in computer?
Answer – In computer, RAM means Random Access Memory. It is a type of computer memory that is accessed randomly. This means that it temporarily stores the work being done in the computer.
15. What is the computer hardware that can store large amounts of data called?
Answer: The computer hardware that can store large amounts of data is called a magnetic tape hard disk.
17. Which is not counted as a type of memory in a computer?
Answer – Server is not counted as a type of memory in a computer.
18. What is a pen drive?
Answer – Pen drive is an electronic memory. A pen drive is a portable Universal Serial Bus (USB) flash memory device for storing and transferring audio, video, and data files to and from a computer.
19. Why is cache memory used?
Answer – Cache memory is used in computers to increase the speed between memory and processor.
20. What is built-in memory of computer?
Answer: The built in memory of computer is ROM.
21. When a file is saved and the computer is turned off, at which place does the data remain?
Answer: After saving a file and turning off the computer, the data remains save in the secondary storage.
22. What is the full name or full form of www?
Answer- Full name of WWW is Word Wide Web.
23. How is word length measured in computers?
Answer – In computers, the length of a word is measured by bytes.
24. What is the part of a computer system that contains programs or instructions called?
Answer: The part of the computer system which contains instructions in the program is called software.
25. What is it called when two processors are installed in a computer?
Answer- When two processors are installed in a computer, it is called parallel processing.
26. The computer language used on the Internet is?
Answer- The computer language used on the Internet is Java.
27. Which is considered the fastest computer?
Answer. The fastest computer is considered to be a supercomputer.
28. Who is the inventor and promoter of WWW?
Answer. The inventor and promoter of WWW is Tim Berners-Lee.
29. What is http in URL http://www?
Answer. http is a protocol in url. The full form of HTTP is Hypertext Transfer Protocol.
30. What is a browser?
Answer- Browser is a software that searches web pages on the Internet. A web browser is a software that helps you to view and use the content available on the Internet such as articles, images, video and audio and games etc. available on blog websites. Some very popular browsers are Google Chrome, Safari, Mozilla Firefox, Opera etc.
31. What is a computer virus?
Answer: Computer virus is a software program which is specially designed to destroy the computer application. The full name of VIRUS is Vital Information Resources Under Siege. Viruses are small programs in the computer which are auto execute programs which enter the computer and affect the functioning of the computer.
32. What is the full form of email?
Answer. The full form of email is electronic mail. Raymond Tomlinson (the Father of Email) is called the father of email. Through e-mail, a message is sent in digital form from one person to another or more people. It is operated by the Internet.
33. Who is the father of email?
Answer. Father of email R. Tomlinson (Raymond Tomlinson).
34. What is the full name of HTML?
Answer- The full name of HTML is Hyper Text Markup Language.
35. What is the full name of Https?
Answer- Full name of https is HyperText Transfer Protocol. The HTTPS protocol works at the transport layer of the OSI model. Which is known for layer security?
36. When was the world’s first supercomputer built?
Answer. The world’s first supercomputer was built in 1976.
37. What is E.D.P?
Answer- E.D.P is Electronic Data Processing. It is called electronic data processing in Hindi.
38. What is the full name of LCD?
Answer- Full name of LCD is Liquid Crystal Display. This is a flat panel display technology which is generally used in TVs and computer monitors.
39. What is the full name of OCR?
Answer- The full name of OCR is Optical Charater Recognition. OCR is a technology through which we convert different documents like Image PDF File or hand written document etc. into data in such a way that the computer can understand.
40. Who created the first computer mouse?
Answer: The first computer mouse was created by Douglas Engelbart. He made it in the 1960s.
41. What is the most used input device today?
Answer- Keyboard is the most used input device today.
42. What does the size of virtual memory depend on?
Answer- The size of virtual memory depends on the disk space.
43. What does ALU mean in the context of computer?
Answer- ALU means Arithmetic Logic Unit. ALU is called Arithmetic Logic Unit in Hindi.
44. The world’s first electronic computer is?
Answer- The world’s first electronic computer is ENIAC. Abbreviation for Electronic Numerical Integrator and Computer.
45. What is IBM?
Answer- IBM is an American multinational information technology company. This company was started in 1911 with the name of Computing-Tabulating-Recording Company. The full form of IBM is International Business Machines Corporation.
46. What is the name of the super computer manufactured in India?
Answer- The name of the super computer manufactured in India is PARAM. It is manufactured by C-DAC.
47. The world’s first calculating machine is?
Answer: The world’s first calculating device is the abacus.
48. What are Ctrl, shift and alt called?
Answer- Ctrl, shift and alt are called modifier keys.
49. What is Bit?
Answer – Bit is the smallest unit of computer memory.
50. What is inaccuracy in computer data called?
Answer – Inaccuracy in computer data is called bug. When a developer creates a computer program, there are flaws in it while making it, which you can call error, flaw, mistake, failure or fault, but in technical language it is called software bug.
51. Who invented the microprocessor?
Answer: The microprocessor was invented by Intel. There are mainly two big microprocessor-producing companies in the world: Intel and AMD.
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