Explanation

A Firewall is a piece of hardware or software that reads all data packets in a network and blocks or allows them based on predetermined security rules.

It acts as a barrier between a trusted network and an untrusted network, such as the internet.

Explanation

• A box that contains multiple hard disk drives is called a Hard disk array.
• This term is often used to describe a collection of hard disk drives that are combined to provide improved data storage and redundancy.

Explanation

To lock your keyboard press    Ctrl  +  Alt   +   L

To unlock your keyboard press the right SHIFT key for 8 seconds and again to turn off Filter Keys.

Explanation

Keyboard is an input device.

Keyboard is similar to electric typewriter.

Keyboard uses serial port to connect with computer.

Keys on keyboard are of mainly three types:

Alphanumeric keys: letters and numbers 

Punctuation keys: comma, period, semicolon, etc.

Special keys: function keys, arrow keys, caps lock key, etc. 

Explanation

A motherboard is the main printed circuit board (PCB) in a computer.

The motherboard is a computer's central communications backbone connectivity point,

Motherboards can be found in virtually all computers, especially desktop and laptop PCs

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ND16-1-2023

Explanation

Structure: The way in which the components are interrelated.

Function: The operation of each individual component as part of the structure.

Explanation

A computer is a complex system; contemporary computers contain millions of elementary electronic components.

Explanation

Explanation

John von Neumann was a Hungarian-American computer scientist.

Note: Father of Computer is called  Charles Babbage

Explanation

An address is an identifiable location in computer memory where data is stored.

Each memory cell has a unique address used to access or modify data.