The history of computing
History of computing / everything
Output devices and Input devices
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
here some
Alan Turing
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.
Binary
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
Computer Network
What you need
router
cables
WiFi
mps
Network Topology
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