Explanation

 A computer system consists of a computer case, a power supply unit, a motherboard, a central processing unit, main memory, and a hard disk drive.

Input devices include a keyboard, mouse, microphone, video camera, and image scanner.

****

Explanation

Explanation

Important Short cut keys

• Copy: Ctrl+C
• Cut: Ctrl+X
• Paste: Ctrl+V

Explanation

Derived from: computare

Means: “to calculate”, “to count”, “to sum up” or “to think together”. 

********

Explanation

Explanation

File Transfer Protocol (FTP)

FTP is a communications protocol used to send files from computer to computer

FTP does not use encryption.

FTP is built on a client-server model 

FTP first Introduction: April 16, 1971

Explanation

Formula Bar area in an Excel window allows entering values and formulas.

It is labeled with a function symbol (fx).

By clicking the Formula Bar, or when you type an equal (=) symbol in a cell, the Formula Bar will activate.

Explanation

Click the Format drop-down menu in the main menus.

Click the Format drop-down menu in the main menus, you will find the all slide design features are grouped there: Themes, Layout, Background styles, Hide Background Graphics, and Reset.

Explanation

Mozilla Firefox, or simply Firefox, is a free and open-source web browser

Initial release  September 23, 2002.

In 2017, Firefox began incorporating new technology under the code name Quantum to promote parallelism and a more intuitive user interface.

Explanation

• A barcode reader, also called a price scanner or point-of-sale (POS) scanner.
• It is a hand-held or stationary input device.
• It used to capture and read information contained in a barcode.