Page 31 - Knowledge Organiser Yr8 24-25

Knowledge Base: Computing Binary Year 8 | Term 3
1. Binary
1.1
binary
Numbering system which uses base 2 (0s & 1s) – the only language that computers truly understand. 0 means off, 1 means on.
1.2
denary
Numbering system which uses base 10 (0-9) – these are our normal numbers that we use every day. (Otherwise known as decimal)
1.3
hexadecimal
al Numbering system which uses base 16 (0-9 and A-F). These numbers are used to represent colours and code in assembly
1.4
binary addition
Adding binary numbers together (see rules of binary addition)
1.5
overflow
If you cannot represent a number in the given amount of space (IE more bits are needed to represent a number), then this is an overflow error.
1.6
binary shift
Moving bits within a binary number in a certain direction. Any empty positions are filled with 0.
1.7
check digit
An additional digit at the end of a string
of numbers used to check for mistakes in transmission. ISBNs are formed of 12 bits for the item number, then the 13th is a check digit.
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