(!SPECIAL) COMP1 SY23-24 Prelim

It uses a limited number of symbols in which each symbol has a value. However, the position a symbol occupies in the number normally bears no relation to its value—the value of each symbol is fixed..

• Positional Number System

• Non-positional Number System

In it each symbol represents different values depending on the position they occupy in a number, and each system has a value that relates to the number directly next to it.

• Positional Number System

• Non-positional Number System

It means on, true or high.

• 1

• 0

It means off, false or low.

• 1

• 0

Base 2.

• Binary

• Octal

• Decimal

• Hexadecimal

Base 8.

• Binary

• Octal

• Decimal

• Hexadecimal

Base 10.

• Binary

• Octal

• Decimal

• Hexadecimal

Base 16.

• Binary

• Octal

• Decimal

• Hexadecimal

Which one is invalid as an octal number?

• 207

• 209

• 211

• 213

How many bytes are there in a single kilobyte?