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LO1 understanding computer hardware - Coggle Diagram
LO1 understanding computer hardware
1.1 computer hardware
input devices
keyboard
microphone
mouse
output devices
speaker
printer
monitor
communication devices
switches- A switch is a device in a computer network that connects other devices together. Multiple data cables are plugged into a switch to enable communication between different networked devices.
hubs- a physical layer networking device which is used to connect multiple devices in a network.
modem- converts data from a digital format
1.9 number conversions
used for colour codes
ranges between a-f then 0-9
always 6 numbers or letters
ffffff= white
1.2 computer components
ram
hdd
cpu
1.6 hardware troubleshooting
hardware checklist
beep codes- the computer will beep in different amounts which will then suggest a problem with the pc
example
3-3-4 means screen memory test failure
4-2-2 means shutdown failure
1-3-1 means memory problem
1.7 units of measurement
binary
has to use binary so it wont add exactly up to an even number most the time
decimal
can go up a number at a time which leads to the number being even
1.5 communication hardware
wap
router
hub
1.4 connectivity methods
wireless
wifi
satellite
bluetooth
wired
coaxial- uses pulses of electricity
twisted pair- uses pulses of electricity
fibre- uses light
1.8 number systems
eg 1010= 10
the numbers will double every time eg 1, 2, 4, 8 etc.
https://drive.google.com/file/d/1d8_uQomBJXD2-rTAZvq7REkA8oSIV3W_/view
1.3 types of computer systems
desktop
quantum computers- used to complete complex science equations
Laptop
