Explanation

• A data mart is a subset of a data warehouse that is focused on a specific functional area or department, such as marketing, sales, or finance.
• It contains a subset of the data warehouse's data, but is designed to be more accessible and user-friendly for a specific group of users.

Explanation

Cache memory is the fastest system memory, required to keep up with the CPU as it fetches and executes instructions.

Explanation

 A computer system consists of a computer case, a power supply unit, a motherboard, a CPU, main memory, and a hard disk drive. Input devices include a keyboard, mouse, microphone, video camera, and image scanner.

CPU: Central Processing Unit

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. 
Keyboard inventor: Christopher Latham 

Explanation

A trackball is a computer cursor control device used in many notebook and laptop computers.

Trackball is just like a Mouse. 

Explanation

Marking correspondence as "Urgent" signals that it requires immediate attention and quick action.

This helps to prioritize it over routine items for faster decision-making.

Explanation

Explanation

Programmers use Source code, which is:

• Human-readable and written in a programming language.
• Compiled or interpreted to create machine-readable code.
• Used to develop software, apps, and websites.
• Essential for programming and software development.

Explanation

The basic difference between JavaScript and Java is that the functions are values, and there is no hard distinction between methods and fields.

Explanation

• The pre-processing time of Rabin and Karp Algorithm is Theta(m).
• The for loop in the pre-processing algorithm runs for m (the length of the pattern) times, hence the pre-processing time is Theta(m).
• This is the time complexity of the pre-processing phase of the Karp-Rabin algorithm.