cs Flashcards

1
Q

difference between hardware and soft ware

A

harware physical
soft ware digital

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2
Q

primiary s
secondairy s
offline s

A

ram
ssd
usb stick

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3
Q

ssd

A

solid state drive

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4
Q

HDD

A

hard disk drive

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5
Q

how does hdd work

A

spinnig disk
electronic read/write magnet

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6
Q

how does an ssd work

A

s store data permanently typically using flash memory.

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7
Q

1st step of fetch decode execute cycle

A

The pc sends the memmory adress of the next instruction to the MAR

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8
Q

2nd step

A

the adress travels along the adress bus to the ram

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9
Q

3rd step

A

the instruction at that adresss then travels back to the cpu along the data bus stored in mdr copied cir

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10
Q

4th

A

the control unit then interprets and decides what should be done next

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11
Q

5

A

once the current instuction has been fully exectued reapeat

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12
Q

size

A

bytes
kilobytes
megabytes
gigabytes
terabyte
exabytes
zeyabytes

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13
Q

for loop

A

when the code in the loop should run a set number of times

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14
Q

while loop

A

when cood in loop runs as long as condition is true

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15
Q

duplex

A

data travells both directions same time

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15
Q

repeat loop

A

when the code in loop runs 1 keep repating until true

16
Q

half duplex

A

data travels both direction diff time

16
Q

serial

A

data travels 1 wire 1 bit at time

17
Q

parrallel

A

data travel multiplew wires multiple bits at time

18
Q

simplex

A

data travells 1 direction only