Explanation

Explanation

A Trojan Horse is a type of malware that disguises itself as legitimate software.

A Virus is a type of malware that inserts itself into another program.

A worm is similar to a virus, except that it does not need a program in order to run.

Explanation

Full duplex mode allows communication in both directions simultaneously.

In contrast, half duplex mode permits communication in both directions, but not at the same time

Simplex mode allows communication only in one direction.

Explanation

In an Excel worksheet, the first cell is labeled as A1 due to the following reasons:

1. Grid System: Excel uses a grid to organize cells, with rows and columns.
2. Rows Labeled by Numbers: Rows are labeled using numbers (1, 2, 3, etc.).
3. Columns Labeled by Letters: Columns are labeled using letters (A, B, C, etc.).
4. First Cell Location: The first cell is located at the intersection of row 1 and column A, hence labeled A1.

Explanation

Explanation

Explanation

In an email address, the "@" symbol separates the local part (username) from the domain part (service provider's name).

For example, in "user@example.com", "user" is the local part, and "example.com" is the domain part, indicating the email service provider. 

Explanation

QWERTY refers to the first six letters on the upper row of the keyboard.

The QWERTY layout was devised and created in the early 1870s

The key arrangement was devised by Christopher Latham Sholes

104 buttons or keys in a QWERTY keyboard 

The QWERTY keyboard is also known as the Sholes keyboard

ND18-4-2023

Explanation

Slide Show view means you can see your presentation graphics, animated effects, and transition effects, etc. on full screen.

To start the Slide show view, Press F5.

To exit the Slide Show view, press ESC.

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ND30-12-2022

Explanation

A joystick sometimes called a flight stick.

The joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling.

ND18-4-2023