1.1.3 input, output and storage

Question 1

Input device

Answer 1

Can be used to put data and information into a computer
-Keyboard, webcam, barcode reader

Question 2

Output device

Answer 2

Sends information from the computer to the outside world
-Speaker, printer, projector

Question 3

Optical storage

Answer 3

-Read from and written to using lasers
-Pits represet 0 and lands represent 1s
-CD, DVD, Blu-Ray

Question 4

Magnetic

Answer 4

-High capacity
-Moving parts

Question 5

Solid-state

Answer 5

-Fast, portable, expensive, limited read/write cycles

Question 6

RAM and ROM

Answer 6

RAM- Stores data and programs currently being used. Volatile
ROM- Cannot be modified. Non-volatile. Stores the bootstrap/BIOS

Question 7

Virtual storage

Answer 7

-Storing information remotely so it can be accessed by any computer with access to the same system.
-e.g. cloud stoage
-Can be accessed anywhere, anytime provided there is internet access
-Costs money, security