Explanation

• Spam or junk email refers to unwanted or unsolicited messages sent electronically.
• These emails are often sent in large numbers to many recipients.
• They may contain advertisements, scams, or malicious links.

Last verified on 06-09-2026

Explanation

• An algorithm is a step-by-step set of rules to solve a problem.
• It is used in programming and computer science.
• Algorithms must be clear, finite, and logical.
• Every computer program is based on an algorithm.
• It works like a recipe to reach a solution.

Last verified on 07-02-2026

Explanation

• The transfer of data from one place to another is called data communication.
• It involves sending data through a communication medium like cables or wireless signals.

Last verified on 05-09-2026

Explanation

• Ctrl + A: Select All

Additional information:

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

Last verified on 02-07-2026

Explanation

• SSDs use flash memory and have no moving mechanical parts.
• They provide faster data access and transfer speeds than HDDs.
• SSDs are generally more durable and resistant to physical shock.
• HDDs use spinning magnetic disks and mechanical read/write heads.

Last verified on 04-09-2026

Explanation

• A collection of related data is called a Database.
• A database stores and organizes related information so it can be easily accessed, managed, and updated.
• Examples include student records, employee information, and customer details.
• A DBMS (Database Management System) is software used to create and manage databases.

Last verified on 08-08-2026

Explanation

• Email is used to send and receive electronic messages over the Internet.
• It allows users to communicate instantly across the world.
• Emails can include text, documents, images, audio, and video attachments.

Additional information:

• Email stands for: Electronic Mail
• SMTP: Sending emails
• POP3: Receiving/downloading emails
• IMAP: Synchronizing emails across devices
• Email address format: username@domain.com

Last verified on 28-07-2026

Explanation

• LAN stands for Local Area Network.
• It is a network that connects devices within a limited geographical area.
• LAN is commonly used in homes, schools, laboratories, university campuses, and office buildings.
• It provides high-speed communication and resource sharing between connected devices.

Additional information:

• MAN: Metropolitan Area Network – Covers a city or metropolitan area
• WAN: Wide Area Network – Covers a large geographical area (countries/continents)

Last verified on 07-07-2026

Explanation

• IBM: International Business Machines Corporation
• Nickname: Big Blue
• Founded: June 16, 1911
• Headquarters: Armonk, New York, USA
• Nature: American multinational technology corporation
• Operations: Over 175 countries
• Founders: Herman Hollerith, Charles Ranlett Flint, Thomas J. Watson

Last verified on 03-09-2026

Explanation

• Registers are the fastest storage units inside the CPU.
• They temporarily hold data, instructions, and intermediate results during processing.
• Registers are faster than both cache memory and RAM.
• They are directly used by the CPU during instruction execution.

Last verified on 03-09-2026