A computer is an electronic device that can receive, process, and store data to perform a wide range of tasks. It consists of hardware components such as a central processing unit (CPU), memory, storage devices, and input/output devices. The CPU is the brain of the computer that carries out instructions, while the memory temporarily stores data and instructions that the CPU uses. The storage devices, such as hard drives or solid-state drives, store data and programs even when the computer is turned off. Input devices like keyboards and mice allow users to enter data, while output devices such as monitors and printers display or produce the results of data processing.
| No. | Question | Answer |
|---|---|---|
| 1. | What is a computer? | An electronic device that manipulates data and performs operations. |
| 2. | What is RAM? | Random Access Memory, a type of computer memory for temporary storage. |
| 3. | What is a motherboard? | The main circuit board in a computer that connects other components. |
| 4. | What is a CPU? | Central Processing Unit, the primary component that processes data. |
| 5. | What is a virus? | A malicious program that can replicate and cause harm to a computer. |
| 6. | What is an operating system? | Software that manages computer hardware and software resources. |
| 7. | What is a file extension? | The characters that follow the dot in a filename, indicating file type. |
| 8. | What is a mouse? | A handheld pointing device used to interact with a computer screen. |
| 9. | What is a keyboard? | A hardware device for typing text and inputting commands into a computer. |
| 10. | What is a hard drive? | A storage device for digital data that uses spinning disks or solid-state memory. |
| 11. | What is a firewall? | A security system that monitors and controls incoming and outgoing network traffic. |
| 12. | What is a browser? | A software application used to access and view websites on the Internet. |
| 13. | What is a cache? | A component that stores data in a computer’s memory for faster access. |
| 14. | What is a printer? | A hardware device that produces a hard copy of digital documents. |
| 15. | What is a URL? | Uniform Resource Locator, a web address used to locate a specific webpage. |
| 16. | What is an IP address? | Internet Protocol Address, a numerical label assigned to each device connected to a network. |
| 17. | What is a codec? | A device or software used to encode or decode digital media. |
| 18. | What is a LAN? | Local Area Network, a group of computers connected in a small geographic area. |
| 19. | What is a WAN? | Wide Area Network, a group of computers connected over a large geographic area. |
| 20. | What is encryption? | The process of converting data into a code to protect it from unauthorized access. |
| 21. | What is a server? | A computer system that provides resources and services to other computers on a network. |
| 22. | What is a CPU? | Central Processing Unit, the primary component that performs calculations and executes instructions in a computer. |
| 23. | What is a GPU? | Graphics Processing Unit, a specialized processor designed to accelerate graphics rendering. |
| 24. | What is a USB? | Universal Serial Bus, a standard interface used to connect devices to a computer. |
| 25. | What is a BIOS? | Basic Input/Output System, a firmware that initializes and tests hardware components during computer startup. |
| 26. | What is a cookie? | A small data file stored on a computer by a website to remember user preferences and login information. |
| 27. | What is a spam? | Unsolicited and unwanted email, often used for advertising or phishing. |
| 28. | What is a router? | A networking device that forwards data packets between computer networks. |
| 29. | What is a modem? | A hardware device that converts digital signals to analog signals and vice versa for transmission over a telephone line. |
| 30. | What is a backup? | A copy of important data or files created for safekeeping in case of loss or damage to the original. |
| 31 | Who invented the first mechanical computer? | Charles Babbage |
| 32 | What is the main component of a computer? | The central processing unit (CPU) |
| 33 | What is the purpose of a CPU? | The CPU executes instructions that make up a computer program and performs arithmetic and logical operations. |
| 34 | What is RAM? | Random Access Memory (RAM) is a type of computer memory that allows data to be accessed randomly, making it faster than other types. |
| 35 | What is ROM? | Read-Only Memory (ROM) is a type of computer memory that is programmed with data that cannot be changed. |
| 36 | What is an input device? | An input device is a device that sends data to a computer, such as a keyboard, mouse, or scanner. |
| 37 | What is an output device? | An output device is a device that displays or presents data from a computer, such as a monitor or printer. |
| 38 | What is a storage device? | A storage device is a device used to store data, such as a hard drive, USB drive, or CD/DVD. |
| 39 | What is a file? | A file is a collection of data or information that is stored on a computer. |
| 40 | What is a folder? | A folder is a virtual container that holds files and other folders. |
| 41 | What is a desktop? | The desktop is the main screen or background that you see when you start up your computer. |
| 42 | What is a browser? | A browser is a software program used to access and view websites on the internet. |
| 43 | What is a search engine? | A search engine is a software program used to search for information on the internet. |
| 44 | What is an operating system? | An operating system is the software that manages the hardware and software resources of a computer. |
| 45 | What is a virus? | A virus is a malicious software program that can infect a computer and cause damage or steal information. |
| 46 | What is malware? | Malware is a broad term used to describe any software designed to cause harm to a computer or its users. |
| 47 | What is a firewall? | A firewall is a software or hardware device used to protect a computer or network from unauthorized access. |
| 48 | What is a router? | A router is a networking device used to connect multiple computers or devices to a network. |
| 49 | What is a modem? | A modem is a device used to connect a computer to the internet through a phone or cable line. |
| 50 | What is a LAN? | A LAN (Local Area Network) is a network that connects computers and devices in a small geographical area, such as an office or home. |
