SLR 3

Question 1

list 4 input devices

Answer 1

4 from:
keyboard
mouse
camera
microphone
touch screen
gaming controller
webcam
cd reader
QR reader
RFID scanner

Question 2

What are the 4 kinds of barcode reader

Answer 2

pen type reader
laser scanners
ccd readers
camera based readers

Question 3

what are some positives and negatives of optical storage devices?

Answer 3

Pos - cheap, lightweight, portable
Neg - slow to access, vulnerable to scratching

Question 4

positives and negatives of magnetic storage devices

Answer 4

pos - cheap, high capacity
neg - slow access time, fragile

Question 5

positives and negatives of solid state drive (SSD)

Answer 5

pos - durable, fast access time
neg - pricey, limited number of read/writes

Question 6

What is a drive?

Answer 6

a device that reads/writes data

Question 7

what is media

Answer 7

what data is stored on

Question 8

what is ROM

Answer 8

read only memory, non volatile, contains bootstrap

Question 9

what is RAM

Answer 9

RAndom Access memory, temporary data store, volatile, faster than hard disk

Question 10

what is POST

Answer 10

power on self test, sends signals to all connected components, wakes them up, makes CPU aware of their presence.

Question 11

positives and negatives of cloud storage

Answer 11

pos - accessible anytime anywhere, share ability, easy collaboration
neg - expensive, access limited by internet connection speed