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Explanation

1 byte equals 8 bits.

Additional Information

Explanation

Most abundant element in Earth crust is Oxygen.

Oxygen in the crust is (46.1%).

The chemical formula of oxygen (dioxygen) is O2.

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List of 10 Most Abundant Elements in the Earth's Crust

Explanation

LAN stands for local area network

It is a collection of devices connected together in one physical location

For example"

• school
• laboratory
• university campus 
• office building.

LAN covers can be small or large from home network and enterprise network

Additional Information

WAN stands for wide area network.

MAN stands for Metropolitan Area 

WANs and MANs connect many LANs together

WANs and MANs cover a large geographical area

Explanation

The size of information in the computer is measured in Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).

1 Kilobyte (KB) = 1024 bytes

One Megabyte (MB) = 1024 Kilobytes (KB

One Gigabyte (GB) =  1024 Megabytes MB

One Terabyte (TB)= 1024 gigabytes (GB).

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RY 15-01-2023

RK28-01-2023

Explanation

ALT + Shift + F1 is also used to create a new worksheet

Ms. Excel is a Spreadsheet program

MS Excel is based on WINDOWS

shortcut key in  MS Excell:

which key is used for help in MS excel?

F1

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Shift+Backspace

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Which key is used to enter the current date in Excel?

Ctrl+;

Explanation

Non-volatile memory or is a type of computer memory that can retain stored information even after power is removed.

RAM is a volatile memory.

RAM: Random Access Memory.

ROM is a non-volatile memory.

ROM: Read Only Memory.

Explanation

Explanation

There are three different classes of a computer network namely:

Local Area Network (LAN) covers a small geographical area such as a room, a building or a compound;

Metropolitan Area Network (MAN) has citywide coverage

and Wide Area Network (WAN) that covers the whole globe or beyond the globe.

ND27122022

ND16-1-2023

Explanation

Explanation