Explanation

• RAM stands for Random Access Memory.
• It is a type of fast, temporary computer memory.
• It is essentially short-term memory.
• It is the hardware in a computing device where the operating system (OS).

Last verified on 26-04-2026

Explanation

• Ctrl + C in MS Word is used for the Copy command.

Additional information:

• Ctrl + R → Align text to the right
• Ctrl + E → Center align text
• Ctrl + J → Justify paragraph
• Ctrl + L → Align text to the left
• Ctrl + Q → Remove paragraph formatting (reset to default left alignment)

Last verified on 10-06-2026

Explanation

In MS Word, the default alignment for a paragraph is Left (or Left-aligned)

This setting aligns text along the left margin, leaving the right edge ragged

Shortcut: Ctrl+L 

Last updated by NA 15-feb-2026

Explanation

• ROM stands for Read Only Memory.
• It is a type of non-volatile memory.
• So its contents are retained when power is turned off.
• ROM stores important instructions such as firmware and boot instructions.

Additional information:

• RAM → Random Access Memory
• PROM → Programmable Read Only Memory
• EPROM → Erasable Programmable Read Only Memory

Last verified on 08-08-2026

Explanation

• .pptx → Default PowerPoint Presentation (2007 and later)
• ppt → PowerPoint Presentation (97–2003)

Additional information:

• .ppsx → PowerPoint Show (opens directly as a slideshow)
• .potx → PowerPoint Template
• .pptm → Macro-enabled Presentation

Last verified on 11-07-2026

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

• RAM and Cache are volatile memories.
• It means their data is lost when power is turned off.
• Volatile memory requires continuous power to retain data.
• RAM is used for running programs and storing temporary data.
• Cache is a high-speed memory that stores frequently used data for the CPU.

Additional information:

• ROM is non-volatile and retains data without power.

Last verified on 16-02-2026

Explanation

• Inventor: Tim Berners-Lee
• Collaborator: Robert Cailliau
• Year of invention: 1989 August
• Organization: CERN (European physics lab, Switzerland)
• First website: 1991 (public release)
• WWWW stands for World-Wide Web Worm.

Last verified on 24-06-2026

Explanation

• Ctrl + S = To save a document.

Additional information:

• Ctrl + X → Cut (remove selected text)
• Ctrl + R → Align text to the right
• Ctrl + E → Center align text
• Ctrl + J → Justify paragraph
• Ctrl + L → Align text to the left
• Ctrl + Q → Remove paragraph formatting (reset to default left alignment)

Last verified on 10-06-2026