notes.txt

how a computer boots up

electricity 
|
rom, bios
|
bios 
|
checks if everything is okay, hardware
|
boot loader, loads bios ram
|
boot loader does what it needs to do
|
kernal is loaded
|
OS open and you can start using apps

parts of a computer

RAM / Memory / In Memory

=> random access memory 

apps store data in ram, fast, allows apps to run

CPU

=> central processing unit

take inputs to do initialise stuff, volts, 1000111

GPU

=> graphics processing unit

deals with graphics and animations, maths and science processes

Hard Disk / SSD (solid state drive)

=> storage of files, persistent storage 

writing a file 

=> save a document

read a file 

=> open a document