Explanation

• Slide Sorter View is used to sort, rearrange, copy, and delete slides in Microsoft PowerPoint.
• It displays all slides as thumbnails on one screen.
• You can easily drag and drop slides to change their order.
• It is useful for organizing large presentations.

Last verified on 28-07-2026

Explanation

• Email stands for Electronic Mail.
• It is a method of sending and receiving digital messages through the internet.
• The term electronic mail has been used with its modern meaning since 1975.
• The shorter form E-mail became common around 1979.

Additional information:

Parts of a valid email address:

1. Email Prefix
2. Email Domain

Address: example@mail.com

1. example = Email Prefix
2. mail.com = Email Domain

Last verified on 16-06-2026

Explanation

• Charts in MS Excel are added from the Insert tab.
• The Insert tab contains the Charts group for creating different chart types.
• Users can create Column, Bar, Line, Pie, Area, Scatter, and other charts.
• Charts help present data visually for easier analysis.

Last verified on 27-07-2026

Explanation

• ARPANET was the first network that initiated the Internet.
• It was launched in 1969 by the U.S. Department of Defense's ARPA.
• ARPANET stands for Advanced Research Projects Agency Network.

Additional information:

• First message sent: 29 October 1969
• TCP/IP adopted: 1 January 1983
• World Wide Web introduced: 1989 (by Tim Berners-Lee)
• Public Internet growth: 1990s

Last verified on 27-07-2026

Explanation

• A firewall’s main function is to prevent or block unauthorized access to a computer network.
• It acts as a security barrier between trusted and untrusted networks (like the internet).
• It filters incoming and outgoing network traffic based on security rules.
• It helps protect systems from hackers and unwanted access attempts.

Last verified on 10-06-2026