Chapter 1.4,5,6(Input/output/storage devices)

Question 1

Give examples of input devices that are used to read barcodes

Answer 1

• Pen type readers
• Laser scanners
• Camera based readers
• Digital cameras

Question 2

Give examples of input devices used to access a computer

Answer 2

Mouse

Keyboard

Question 3

Give examples of output devices

Answer 3

printer
scanner
speaker
monitor

Question 4

What is a computers primary storage?

Answer 4

RAM

Question 5

Why is secondary storage slower than RAM?

Answer 5

It’s not directly accessible to the processor and has slower access speeds

Question 6

What is a benefit of secondary storage compared to primary?

Answer 6

It is non-volatile

Question 7

Name 4 types of storage devices?

Answer 7

Magnetic, Optical, Solid state and virtual

Question 8

How is data stored on magnetic storage devices?

Answer 8

Mechanical parts move over disks surface ti read and write data

Question 9

How is data stored on optical storage devices?

Answer 9

Lasers read and write data onto the disks

Question 10

How is data stored on solid state storage devices?

Answer 10

Data recorded onto solid state memory chips

Question 11

What are the features of SS storage?

Answer 11

• Very portable
• Very durable and fast
• No moving parts

Question 12

How is data stored in virtual storage?

Answer 12

Data is saved virtually over the internet in host servers which make up a cloud