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computer systems - Coggle Diagram
computer systems
lesson 2
storage is where data and instructions are kept
volatile - memory is lost after being shutdown
non-volatile - memory is kept after being turned off
primary storage- storage closest tot eh CPU
secondary storage - storage kept outside a computer
always non-volatile
lesson 1
a computer system is hardware and software that input, output, process and store data
CPU is a central proccesing unit
the CPU fetches, decodes and executes instructions
fetch- collects from storage
decode-understand
execute- does the needed instructions, ends the cycle
you can increase clock speed cache or cores to make the FDE cycle quicker
CPU is 4 parts
registers
control units
cache memory
arithmetic logic unit
lesson 4
hardware
physical components of a computer
moniter, keyboard, screen
software
things within a computer
operating system- mandatory software
application software- you can download them if you choose
utility software- protects and 'cleans' your computer
lesson 3
an embedded system is a computer system that is within a larger mechanical device
they have a particular purpose
they input, output , process and store the things needed for the device to work