WJEC CS 1.1, 1.2, 1.4, 1.8, 2.3.1 and 2.3.3 Part 3

A typical mp3 encoded music file takes up 4MB. You have a smart phone with 6GB of storage. How many tracks can be stored on the phone?

• 1 million music files
• 1,500 music files
• 100 music files
• 10 thousand music files

Why durability is important when choosing an appropriate storage media?

• Because it is important to take in consideration how resistant the media is to damage. 
• Because it is important to consider how cheap the media cost.

RAM stands for ...

• Read Access Memory
• Random Application Memory
• Read Application Memory
• Random Access Memory

The characteristics of RAM are it is .....

• Non-volatile, read, contents cannot be altered

• Volatile, read & write, contents can be altered

What is a bus?

• A circuit that connect one part of CPU to other components.
• A type of long term memory
• A type of permanent memory
• A method of transport

Used to carry the address to which the data is being transmitted.

• Data Bus
• Address bus
• Control Bus

A braille keyboard is...

• INPUT

• OUTPUT

• STORAGE

A plotter is...

• INPUT

• OUTPUT

• STORAGE

A . ( B + C )
is the same as

• ___________
  A + B + C
• ( A + B ) ( A + C)
• A . B . C
• ( A . B ) + ( A . C )

A + 1 =

• 1

• 0

• A

• A pair of smelly sneakers

• ~A