The history of computing

Everything You Need to Know About Computing

First fun facts about computing

When was first computer was invented: 1822

Who invented it: Charles Babbage

Where was it invented: Campbell-Kelly

Why was is it invented: humans were in need of a result, and no mistakes allowed

How did he come up with the idea: He was in need of help with device he can rely on

What is it made of: Inputs, outputs, a storage and processing

Computing cycle

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Input devices

Scanner- A device for examining, reading, or monitoring something.

Touch pad- A computer input device in the form of a small panel containing different touch-sensitive areas.

Touch screen- A display device which allows the user to interact with a computer by touching areas on the screen.

Mouse- A small handheld device which is moved across a mat or flat surface to move the cursor on a computer screen.

Key board- A panel of keys that operate a computer or typewriter.

Tracker ball- A small ball that is set in a holder and can be rotated by hand to move a cursor on a computer screen.

Light pen- A handheld pen-like photosensitive device held to the display screen of a computer terminal for passing information to the computer.

Joy stick- A lever that can be moved in several directions to control the movement of an image on a computer or similar display screen.

OMR- optical mark recognition

Bar- Code reader

Graphics tablet- a touch screen tablet (to draw on, write on.. ect)


CPU- Core processing unit

VDU- Visual display unit

Power supplier- An electronic device that supplies electric energy to an electrical load.

Motherboard- A printed circuit board containing the principal components of a computer or other device, with connectors for other circuit boards to be slotted into.

wireless network card

graphics card

RAM- Random access memory

Hard Drive

output devices

Headphones- A device consisting of a pair of earphones joined by a band placed over the head, for listening to audio signals such as music or speech.

Printer- A machine for printing text or pictures, especially one linked to a computer.

Projector- A device that is used to project rays of light, especially an apparatus with a system of lenses for projecting slides or film on to a screen.

Speakers- The presiding officer in a legislative assembly, especially the House of Commons.


Video card-

Sound card- A which device can be slotted into a computer to allow the use of audio components multimedia applications.

Plotter- A piece of equipment that marks out points on a chart.

computer storage

Memory card- A small, flat flash drive used especially in digital cameras and mobile phones.

Memory stick- (in general use) a flash drive [type of memory card]

Flash drive- A small electronic device containing flash memory that is used for storing data or transferring it to or from a computer, digital camera, etc.

Blue-ray disk- A digital optical disc data storage format designed to supersede the DVD format.

Floppy diskette- A disk storage medium composed of a disk of thin and flexible magnetic storage.

Zip diskette- A floppy-like technology that used design concepts from hard disks.

Tape cassette- A cassette of audio tape or videotape.

The components inside a computer

How To Identify The Components Inside Your Computer