1. Who is known as the father of the modern computer?
Charles Babbage was an English polymath who originated the concept of a digital programmable computer. He designed the Analytical Engine.
2. In MS Word, which shortcut key is used to "Undo" the last action?
Ctrl + Z is the standard shortcut for Undo, while Ctrl + Y is used for Redo in most Windows applications.
3. What is the full form of RAM?
RAM is a form of computer data storage that stores data and machine code currently being used. It is volatile memory.
4. Which of the following is the smallest unit of data in a computer?
A "Bit" (Binary Digit) is the basic unit of information in computing and digital communications. It can have a value of either 0 or 1.
5. In MS Excel, every formula must begin with which sign?
An equal sign (=) tells Excel that the succeeding characters constitute a formula rather than plain text.
6. Which part of the computer is considered its "Brain"?
The CPU (Central Processing Unit) performs most of the processing inside a computer, making it the "brain" of the system.
7. What is the shortcut key to "Select All" text in a document?
Ctrl + A is used to highlight all the content in the current window or document.
8. Which protocol is used for sending emails?
SMTP (Simple Mail Transfer Protocol) is the standard protocol for sending emails across the internet.
9. 1 Gigabyte (GB) is equal to how many Megabytes (MB)?
In binary systems, 1 GB = 1024 MB. Similarly, 1 MB = 1024 KB.
10. Which of the following is an Operating System?
Linux is an open-source operating system. MS Word is an application, Chrome is a browser, and Oracle is a database system.
11. What is the shortcut key to "Paste" copied text?
Ctrl + V is used to paste. Ctrl + C is for Copy, and Ctrl + P is for Print.
12. HTML is used to create?
HTML (HyperText Markup Language) is the standard markup language for documents designed to be displayed in a web browser.
13. Which shortcut key is used to "Refresh" the active window?
F5 is the standard function key to refresh the content of a page or window in Windows and browsers.
14. What is the full form of URL?
URL is the address of a unique resource on the web, such as a website or a specific file.
15. Which of the following is an "Input" device?
A scanner is an input device that converts physical documents into digital format. Others listed are output devices.
16. What is the shortcut key to "Cut" selected text?
Ctrl + X is used to remove the selected text/object and place it on the clipboard.
17. In MS PowerPoint, which key is used to start a "Slide Show" from the beginning?
Pressing F5 in PowerPoint starts the presentation from the first slide. Shift + F5 starts from the current slide.
18. Which of the following is a "Volatile" memory?
Volatile memory loses its data when power is turned off. RAM is the primary example.
19. What is the file extension of a MS Word 2016 document?
Since MS Office 2007, the default file format for Word is XML-based, hence the "x" in .docx.
20. Which protocol is used for "Browsing" websites?
HTTP (Hypertext Transfer Protocol) is the foundation of data communication for the World Wide Web.
21. What is the full form of PDF?
PDF was developed by Adobe to present documents independent of application software, hardware, and operating systems.
22. Which key is used to "Rename" a selected icon or file?
F2 is the standard Windows shortcut to rename a selected file or folder.
23. A "Nibble" consists of how many bits?
A nibble is a four-bit aggregation, or half an octet (half a byte).
24. Which shortcut key is used to "Save" a file?
Ctrl + S is the universal shortcut to save the current progress of a document or file.
25. The process of "Starting" a computer is called?
Booting is the startup sequence that starts the operating system of a computer when it is turned on.
26. Who invented the World Wide Web (WWW)?
Tim Berners-Lee, a British scientist, invented the WWW in 1989 while working at CERN.
27. Which of the following is a "Binary" number?
The binary system uses only two digits, 0 and 1, to represent all data.
28. What is the full form of ROM?
ROM is non-volatile memory that permanently stores instructions for the computer.
29. Which shortcut key is used to "Center Align" text in MS Word?
Ctrl + E centers the text, Ctrl + L aligns left, and Ctrl + R aligns right.
30. Which of the following is used for "Permanent" storage?
Hard Disks (HDD) or SSDs are non-volatile storage devices used to store data permanently.
31. What is the full form of LAN?
LAN is a computer network that interconnects computers within a limited area such as a residence, school, or office building.
32. Which shortcut key is used to "Print" a document?
Ctrl + P opens the print dialog box in almost all Windows applications.
33. What is the brain of the computer?
CPU stands for Central Processing Unit and handles all instructions received from hardware and software.
34. In MS Excel, columns are identified by?
Columns in Excel are labeled with letters (A to XFD), while rows are labeled with numbers (1 to 1,048,576).
35. Which of the following is a "Search Engine"?
Google is a search engine, while Internet Explorer, Firefox, and Opera are web browsers.
36. Which function key is used for "Spell Check" in MS Word?
F7 is the shortcut to run a spelling and grammar check on the document.
37. What is the full form of USB?
USB is an industry standard for cables, connectors, and protocols for connection, communication, and power supply between computers and devices.
38. Which of the following is the "Fastest" memory?
Cache memory is a small, high-speed type of volatile computer memory that provides high-speed data access to a processor.
39. What is the shortcut key to "Create a New Document"?
Ctrl + N is used to open a new, blank document in MS Word, Excel, and most other applications.
40. Which generation of computers used "Vacuum Tubes"?
First-generation computers (1940-1956) used vacuum tubes for circuitry and magnetic drums for memory.
41. What is the full form of GUI?
GUI allows users to interact with electronic devices through graphical icons and visual indicators instead of text-based user interfaces.
42. Which key is used to "Delete" a character to the right of the cursor?
Backspace deletes characters to the left, while the Delete key removes characters to the right of the cursor.
43. In MS Word, which shortcut key is used for "Subscript"?
Ctrl + = is for Subscript. Ctrl + Shift + + is for Superscript.
44. Which of the following is an "Output" device?
A plotter is a computer hardware device much like a printer that is used for printing vector graphics.
45. What is the full form of IP?
An IP address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
46. In MS Excel, a cell address "A5" means?
Excel cell addresses are defined by the Column Letter followed by the Row Number.
47. Which shortcut key is used to "Bold" selected text?
Ctrl + B is the standard shortcut to apply or remove bold formatting.
48. What is the full form of HTTP?
HTTP is the protocol used for transmitting web pages over the internet.
49. Which of the following is an "Antivirus" software?
Norton is a well-known antivirus program. Trojan, Worm, and Spyware are types of malware.
50. What is the shortcut key to "Close" the active application?
Alt + F4 is the standard shortcut to close the currently active window or application in Windows.
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