4.9 - 4.10 Storage of Characters

Question 1

Standardised character sets allow for….

Answer 1

for data interchange between different programs

Question 2

How are characters stored on a computer

Answer 2

All characters are stored in a computer or computer file as a binary number.

Question 3

What is a character set

Answer 3

A character set is a table that maps a character with a unique binary number.

Question 4

What are 2 types of character sets

Answer 4

1. American Standard Code for Information Interchange (ASCII)
2. Unicode

Question 5

The American Standard Code for Information Interchange (ASCII) is a character set. State how many bits are used in this character set.

Answer 5

8 Bits

Question 6

What are the limitations to the American Standard Code for Information Interchange (ASCII)

Answer 6

There are not enough codes to cover all the world’s languages. It’s also difficult to transfer codes between different platforms.

Question 7

State the purpose of standardised character sets and how they work. (2)

Answer 7

Standardised character sets allow for data to interchange between different programs. It does this by storing files in a computer as a binary number.