cs Flashcards
difference between hardware and soft ware
harware physical
soft ware digital
primiary s
secondairy s
offline s
ram
ssd
usb stick
ssd
solid state drive
HDD
hard disk drive
how does hdd work
spinnig disk
electronic read/write magnet
how does an ssd work
s store data permanently typically using flash memory.
1st step of fetch decode execute cycle
The pc sends the memmory adress of the next instruction to the MAR
2nd step
the adress travels along the adress bus to the ram
3rd step
the instruction at that adresss then travels back to the cpu along the data bus stored in mdr copied cir
4th
the control unit then interprets and decides what should be done next
5
once the current instuction has been fully exectued reapeat
size
bytes
kilobytes
megabytes
gigabytes
terabyte
exabytes
zeyabytes
for loop
when the code in the loop should run a set number of times
while loop
when cood in loop runs as long as condition is true
duplex
data travells both directions same time