Questions

Compression 1

What is file compression and what benefits can compression provide?

Compression 1 Read More »

Sound 3

What is meant by the term ‘bitrate’ and how does bitrate affect a sound file’s sound quality and file size?

Sound 3 Read More »

Sound 2

What effect does the sampling rate have on the resulting sound file’s quality and size.

Sound 2 Read More »

Sound 1

How is sampling used to store sound in a computer system?

Sound 1 Read More »

Images 3

What is image resolution and how can it affect both the quality of the image and the size of the image file?

Images 3 Read More »

Images 2

What is colour depth and how can it affect both the quality of the image and the size of the image file?

Images 2 Read More »

Images 1

Explain how a bitmap image is represented in a computer system.

Images 1 Read More »

Characters 3

Explain why communication systems, that enable the use of emojis, will make use of the Unicode character set instead of the ASCII character set.

Characters 3 Read More »

Characters 2

Explain fully, the differences between ASCII, Extended ASCII and Unicode.

Characters 2 Read More »

Characters 1

The following table shows the ASCII codes for several characters. Character ASCII Code A 65 B 66 C 67 D 68 Explain, with an example, how a computer would represent ‘DAB’ in ASCII.

Characters 1 Read More »

en