Explanation

• Win + R opens the Run dialog box in Windows.
• It allows users to quickly open programs, folders, files, and system tools by typing commands

Additional Information:

• cmd: Opens the Command Prompt.
• notepad: Opens Notepad.
• msconfig: Opens System Configuration.
• control: Opens the Control Panel

Last updated 07-09-2026 by NA

Explanation

• The CPU (Central Processing Unit) is the brain/heart of the computer.
• It processes data and executes instructions.
• It controls other parts of the system.

Additional information:

• First commercial CPU: Intel 4004 (1971)
• Invented by: Italian physicist Federico Faggin
• CPU Examples: Clock speeds – 3.0 GHz, 3.5 GHz, 4.0 GHz, 4.5 GHz, 5.0 GHz

Last updated by NA on 09-09-2026

Explanation

• A bit (binary digit) is the smallest unit of data in a computer.
• It can have a value of 0 or 1, representing two possible states.

Additional information:

• 1 Byte = 8 bits
• 1 Kilobyte (KB) = 1024 Bytes
• 1 Megabyte (MB) = 1024 KB
• 1 Gigabyte (GB) = 1024 MB
• 1 Terabyte (TB) = 1024 GB

Last verified on 12-03-2026

Explanation

• Full Name: Vinton Gray Cerf
• Known as: Father of Internet
• Born: 23 June 1943
• Major Contribution: TCP/IP protocol development
• Award: National Medal of Technology (1997)

Last verified on 20-06-2026

Explanation

• F7 is the shortcut key used to check Spelling and Grammar in Microsoft Word.

Additional information:

Key Function Keys (F1–F12)

1. F1 – Opens Help
2. F2 – Rename selected file/folder (Windows) / Edit active cell (Excel)
3. F3 – Opens Search
4. F4 – Alt + F4 closes the active window
5. F5 – Refreshes browser / Starts Slide Show in PowerPoint
6. F6 – Moves to the next pane in Microsoft Word
7. F7 – Spelling & Grammar Check
8. F8 – Enables Extend Mode in Excel
9. F9 – Updates/Refreshes fields in Microsoft Word
10. F10 – Activates the Menu Bar
11. F11 – Full-screen mode in browsers
12. F12 – Save As in Microsoft Word

Last verified on 09-07-2026

Explanation

• VPN stands for Virtual Private Network.
• It creates a secure and encrypted connection over the internet to protect user data and privacy.
• A VPN masks the user's IP address and helps hide their browsing activity.
• It is commonly used for secure remote access and online privacy.

Last verified on 08-07-2026

Explanation

Python is widely considered the most common and popular language for Artificial Intelligence 

Due to its simplicity, readability, and a vast ecosystem of libraries and frameworks specifically designed for AI and machine learning tasks. 

Explanation

• Ctrl + Shift + Esc directly opens the Windows Task Manager.
• It provides information about running programs, processes, performance, and system resources.

Additional information:

• Ctrl + Alt + Del also provides access to Task Manager, but it first opens a security options screen.
• Alt + F4 closes the active window or application.

Last verified on 14-06-2026

Explanation

• Front Side Bus (FSB) provides fast communication between the CPU and RAM (main memory).
• It connects the processor with the memory controller and other chipset components.
• A higher FSB speed allows faster data transfer between CPU and RAM.
• It was commonly used in older computer architectures.

Last verified on 13-06-2026

Explanation

• Full form: New Technology File System (NTFS)
• Developed by: Microsoft
• Introduced: 1993 (Windows NT 3.1)
• Default in: Windows 10, Windows 11, and modern Windows systems
• Alternative file systems: FAT32, exFAT

Last verified on 13-06-2026