Explanation

Explanation

USB, Serial, and Parallel are common computer ports:

• USB is widely used for modern devices like keyboards, printers, and flash drives.
• Serial ports were used for modems and mice but are now mostly replaced by USB.
• Parallel ports were used for printers but have also largely been replaced by USB.

Explanation

Alt + F4 keyboard shortcut to close an app or program on Windows

Confused question

Ctrl+F4 is the shortcut key to an application or a window

Alt + F4: Close the current app or window.

Alt + Tab: Switch between open apps or windows.

Explanation

A header is text that is placed at the top of a page.

A footer is placed at the bottom, or foot, of a page.

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RY 15-01-2023

Explanation

Explanation

Pressing the ESC key closes the Run dialog box in Windows.

ESC is a standard key for canceling or closing windows and dialog boxes.

Other related keys:

• Enter: Confirms and runs the command
• Tab: Moves the cursor between fields
• Shift: Used for modifying selections or keyboard shortcuts
• Alt + F4: Closes the current window or dialog box

Explanation

To select multiple slides, press and hold Ctrl

while

you click each slide that you want to move, and then drag them as a group to the new location.

ND27-7-2023

Explanation

A Logical Unit is also known as an Arithmetic Logic Unit (ALU).

It is a digital circuit that performs arithmetic and logical operations on binary numbers, such as:

• Arithmetic operations (e.g., addition, subtraction, multiplication, division)
• Logical operations (e.g., AND, OR, NOT, XOR)

Explanation

4404 is divisible by both 3 and 4, making it divisible by 12.

Last updated 08 Nov 2026 by NA

Explanation

Spreadsheet:

This is the function of Excel, where data is organized in rows and columns within cells, allowing for calculations and analysis

Graphic program:

This is not associated with Excel, as it is designed for creating images and graphics. 

Word processor:

This refers to programs like Microsoft Word for creating and editing text documents. 

Presentation:

This refers to programs like PowerPoint, which are used to create slideshow presentations.