Explanation

• Clipboard is the temporary storage area for content that is copied or cut.
• It stores text, images, files, or other data temporarily until it is pasted.
• Copy shortcut: Ctrl + C
• Cut shortcut: Ctrl + X
• Paste shortcut: Ctrl + V

Last verified on 01-07-2026

Explanation

• A permanent storage device retains data even when the computer is turned off.

• Hard disk is a common permanent storage device used to store files, programs, and the operating system.
• Examples: Hard Disk Drive (HDD), Solid State Drive (SSD), Optical Discs, USB Flash Drives, External Hard Drives

Last verified on 09-03-2026

Explanation

• Spam (also called Junk Email) is a type of electronic spam in which unsolicited messages are sent through e-mail.

Additional information:

• E-mail stands for Electronic Mail.
• It was invented by Ray Tomlinson.
• The first e-mail was sent in 1971.
• E-mail is used for sending and receiving electronic messages over the internet.

Last verified on 01-07-2026

Explanation

• Every valid email address must contain the @ (at) symbol.
• It separates the username from the domain name.
• Without @, an email address is invalid and cannot work.

Last verified on 16-02-2026

Explanation