Explanation

Many people think that there are 1000 bytes in a kilobyte. But there are really 1024 bytes in a kilobyte. The reason for this is because computers are based on the binary system. That means hard drives and memory are measured in powers of 2.

Explanation

Network topology in which you connect each node to the network along a single piece of network cable is called bus topology.

Explanation

math.h is the standard C/C++ header file that contains declarations for common mathematical functions like sqrt(), pow(), sin(), etc.

It must be included when using built-in math operations in programs.

Explanation

in COBOL, the Picture Clause (often abbreviated as PIC) is used to define the structure and type of data elements.

• Picture Clause in COBOL:
  

The Picture Clause describes the attributes of a data item, including its type (e.g., numeric, alphabetic), size, and format

COBOL stands for Common Business Oriented Language

Explanation

Vertex coloring is a way of assigning colors to the vertices of a graph such that:

• Any two adjacent vertices (connected by an edge) have different colors.
• The minimum number of colors is used.

This is also known as "proper vertex coloring" or "graph coloring".

It's a fundamental concept in graph theory, used to solve various problems in computer science, networking, and other fields.

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