1.1.3 Input, output and storage - Ben

Question 1

What does the laser laser light scan on an optical disc to measure for 0s and 1s?

Answer 1

Pits (0s) and Lands (1s)

Question 2

How does a magnetic disc store data?

Answer 2

By using two magnetic states, polarised (1s) and unpolarised (0s).

Question 3

How does a flash drive store information?

Answer 3

A flash drive stores information using flash memory, where data is saved in blocks of memory cells that retain electrical charges even without power.

Question 4

What is virtual storage?

Answer 4

Virtual storage is storing information remotely so that it can be accessed by any computer with access to the same system

Question 5

What would be the recommended storage for a drone

Answer 5

Flash storage (SSD)

Question 6

What is an output device?

Answer 6

An output device is hardware that receives and displays or produces data from a computer, such as a monitor, printer, or speakers

Question 7

What is an input device

Answer 7

Any peripheral device that can accept data, presented in the appropriate machine readable form, decode it and transmit it as electrical pulses to the CPU

Question 8

What is virtual memory

Answer 8

Uses a section of the hard drive to act as RAM when the space in main memory is insufficient to store programs being used.

Question 9

What is RAM

Answer 9

RAM is your computer or laptop’s short-term memory. It’s where the data is stored that your computer processor needs to run your applications and open your files

Question 10

What is ROM

Answer 10

ROM is non-volatile, permanent data that, normally, can only be read, not written to. ROM contains the programming that allows a computer to start up or regenerate each time it is turned on