Explanation

• VGA stands for Video Graphics Array.
• It is a display standard used to transmit video signals from a computer to a monitor.
• VGA was introduced by IBM in 1987 with the PS/2 computer series.
• The original VGA standard supports a maximum resolution of 640 × 480 pixels at 60 Hz.
• It uses a 15-pin D-sub (DE-15) connector.

Last verified on 06-08-2026

Explanation

• Numeric values are right-aligned by default in MS Excel.
• This makes numbers easier to read and compare in columns.
• Text values are left-aligned by default.
• Users can change the alignment manually if needed.

Last verified on 06-08-2026

Explanation

• Data transfer between computers is carried out through communication protocols.
• A protocol is a set of rules that allows computers to communicate and exchange data.
• Common network protocols ensure reliable and secure communication.
• Protocols are essential for the Internet and computer networks.

Last verified on 04-08-2026

Explanation

• An Operating System manages and controls all computer hardware and software resources.
• It acts as an interface between the user and the computer hardware.
• The OS manages memory, files, devices, and running programs.
• Without an Operating System, a computer cannot function properly for users.
• Common operating systems include Windows, Linux, and macOS.

Last verified on 04-08-2026

Explanation

• Caps Lock and Num Lock are Toggle Keys.
• Because they switch a function ON and OFF with each press.
• Caps Lock turns uppercase typing on or off.
• Num Lock enables or disables the numeric keypad.

Additional information:

• Toggle Keys: Caps Lock, Num Lock, Scroll Lock
• Function Keys: F1–F12 (12 keys)
• Modifier Keys: Ctrl, Alt, Shift, Fn, Windows Key
• Navigation Keys: Home, End, Page Up, Page Down, Arrow Keys

Last verified on 04-08-2026

Explanation

• Ctrl + E is the shortcut used to apply center alignment in MS Word.

Additional information:

• Ctrl + L → Left Alignment
• Ctrl + R → Right Alignment
• Ctrl + J → Justify Alignment

Last verified on 06-03-2026

Explanation

• IMAP (Internet Message Access Protocol)
• Used to access and manage emails stored on a mail server
• SMTP: Sends emails.
• FTP: Transfers files.
• HTTP: Loads web pages

Explanation

• Hidden files and folders can be displayed from the View menu by selecting Show and enabling Hidden items.
• This option is available in File Explorer.

Additional information:

• Windows 11: View → Show → Hidden items
• Windows 10: View → Hidden items
• Windows 8/8.1: View → Hidden items
• Windows 7: Organize → Folder and Search Options → View → Show hidden files, folders, and drives
• File Explorer shortcut: Windows + E

Last verified on 28-07-2026

Explanation

• Slide Sorter View is used to sort, rearrange, copy, and delete slides in Microsoft PowerPoint.
• It displays all slides as thumbnails on one screen.
• You can easily drag and drop slides to change their order.
• It is useful for organizing large presentations.

Last verified on 28-07-2026

Explanation

• Drag and drop the slides into your preferred order — You can reorder slides by dragging them to the desired position.
• This can be done in the Slides pane or Slide Sorter view.

Additional information:

• Shortcut for printing: Ctrl + P
• Shortcut for new slide: Ctrl + M
• Start Slide Show (from beginning): F5
• Start Slide Show (current slide): Shift + F5
• Slide Sorter: View used to rearrange multiple slides easily.

Last verified on 28-07-2026