Explanation

NOS stands for Network Operating System.

It is software that manages network resources and allows computers to communicate within a network.

Such as file sharing and printer access.

Explanation

• The ALU (Arithmetic Logic Unit) is a core component of the CPU (Central Processing Unit),
• And the CPU itself is the main processing chip and core component of a computer system (or computer hardware architecture).

Explanation

Alternatively referred to as Control W and C-w, Ctrl+W is a shortcut key most often used to close a program, window, tab, or document.

Explanation

VOIP is an acronym for Voice Over Internet Protocol, or in more common terms phone service over the Internet.

Explanation

Intel is one of the best-known manufacturers of computer CPUs.

Intel core is a streamlined computer CPU marketed by Intel Corporation.

Explanation

•  The “Ctrl + Delete” shortcut key is used in MS Word to delete the entire word immediately to the right of the cursor
• Ctrl + Delete: Deletes the word to the right.
• Ctrl + Backspace: Deletes the word to the left

Last updated question by NA on 07 May 2026

Explanation

The shortcut key to select Text in MS Word is the Shift key + use mouse.

Additional information:

Crtl + S to save the document

Crtl + R to align a paragraph in the current document

Crtl + Y is a keyboard shortcut most often used to redo an action reversed using the undo command

Explanation

The AI model most recently released by OpenAI is GPT-5

OpenAI released its flagship GPT-5 model in August 2025

ADDITIONAL INFORMATION 

Chat with the most advanced AI to explore ideas, solve problems, and learn faster.

Explanation

One of the first calculating devices made by man is called an abacus

the abacus was first used by the Babylonians as early as 2,400 B.C

The abacus was in use in Europe, China, and Russia

****

ND8-1-2023

Explanation

Abacus was the first mechanical calculator

Abacus was invented by Tim Cranmer.

Abacus was invented in 1962.