The history of computing

History of computing / everything

Output devices and Input devices

Output devices are;


inkjet printer

laser printer

scanner

speaker

OMR

Plotters

Touch screen

VDU


Input devices


Keyboard

Image scanner.

Microphone.

Pointing device.

Graphics tablet.

Joystick.

Light pen.

Mouse.

Optical.

Pointing stick.

Touchpad.

Touchscreen.

Trackball.

Webcam.

Softcam.

Refreshable braille display

Processing

All processing devices are in a computer

here some

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Alan Turing

born : 23 June 1912

Died : 7 June 1954 [ aged 41 ]


Alan Turing was a British man who cracked the enigma code he is very smart.

Alan killed himself because he was gay and back then it was still a criminal offence until the 60s.


Alan Turing's commemoration was in England


these are the quotes he wrote


We can only see a short distance ahead, but we can see plenty there that needs to be done.


A computer would deserve to be called intelligent if it could deceive a human into believing that it was human.


Science is a differential equation. Religion is a boundary condition.

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Binary

Binary is a mixture of 1's and 0's to form a word so it is basically a code with 1's and 0's


example[ 00011 01111 01101 10000 10101 10100 01001 01110 00111

c o m p u t i n g


well done if you understand and if you don't here's a link to understand

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Computer Network

A computer network or data network is a telecommunications network which allows computer to exchange data. In computer network , networked computing devices exchange data with each other using a data link.


What you need


router

cables

WiFi

mps

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Network Topology

bus :

advantage: A bus network is easy to install and add new devices to.

disadvantage: If main cable fails entire network fails.


star :

disadvantage: Very few data collisions requires a lot of cabling

advantage: Easy to connect new nodes or devices.


ring :

Advantage : transmissions of data is simple.

disadvantage: if cable breaks it all fails