Gr 10 4.1 – DATA AS THE COMPUTER SEES IT

Question 1

ASCII

Answer 1

ASCII (American Standard Code for Information Interchange)
is a coding system which is limited to 256 different
characters.

Question 2

Binary

Answer 2

The base 2 number system that consists of just two digits,
namely a 0 and a 1.

Question 3

Bit

Answer 3

A binary digit i.e. a 0 or a 1

Question 4

Byte

Answer 4

A collection of 8bits – the smallest unit of storage in a
computer system.

Question 5

Coding Scheme

Answer 5

Schemes used to represent or store text or characters by
giving each character a unique numerical code.

Question 6

Decimal

Answer 6

The base 10 number system that consists of the digits 0, 1, 2,
3, 4, 5, 6, 7, 8 and 9.

Question 7

Hexadecimal

Answer 7

The base 16 number system that consists of the digits 0, 1, 2,
3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F.

Question 8

Octal

Answer 8

The base 8 number system that consists of the digits 0, 1, 2,
3, 4, 5, 6 and 7.

Question 9

Overflow

Answer 9

An error condition that occurs when there are not enough
bits available to represent an integer value accurately.

Question 10

Primitive data type

Answer 10

The core types of a programming language. Variables are
declared and used to store a particular type of data.

Question 11

Truncation

Answer 11

The misrepresentation of a string variable because there are
not enough bytes available to store all the characters in the
string.