Explanation

Charles Babbage is known as the Father of the Computer.

He was an inventor from the UK.

He was born in 1791.

He was died in 1871.

Explanation

PowerPoint is used for Create presentations from scratch or a template.

Add text, images, art, and videos.

Select a professional design with PowerPoint Designer.

Explanation

Explanation

The main memory of a computer is also known by several names, including:

• Primary storage
• Internal memory
• Primary memory
• Main storage
• Random Access Memory (RAM)

All these terms refer to the computer's volatile memory, which temporarily stores data and programs that are currently being used or processed by the CPU (Central Processing Unit).

RAM is a primary memory.

ROM is a secondary memory.

RAM stands for: Random Access Memory

ROM stands for: Read Only Memory

Explanation

Pressing the ESC key closes the Run dialog box in Windows.

ESC is a standard key for canceling or closing windows and dialog boxes.

Other related keys:

• Enter: Confirms and runs the command
• Tab: Moves the cursor between fields
• Shift: Used for modifying selections or keyboard shortcuts
• Alt + F4: Closes the current window or dialog box

Explanation

MS Word can be used for creating a document.

Microsoft Word is a word processor developed by Microsoft.

It was first released on October 25, 1983.

Explanation

Android OS is specifically designed for mobile devices like smartphones and tablets.

It is a touchscreen-based operating system developed by Google.

Explanation

Explanation

DRAM memories need a refresh.

Dynamic Random Access Memory (DRAM).

DRAM must be refreshed many times per second to store information, otherwise, it will lose what it is holding.

DRAM is the most common type of memory in use today.

ND18-4-2023

Explanation

Radio waves were first predicted by James Clerk Maxwell in his theory of electromagnetism (Maxwell's equations) in 1867.

Heinrich Hertz experimentally demonstrated their existence in 1887.