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Business and Computer Science |
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Business and Computer Science |
Data Type A classification that specifies what type of value a variable can store. |
Integer A data type used to store whole numbers. |
Real (Float) A data type used to store numbers containing decimal values. |
Boolean A data type that stores True or False values. |
Binary A base-2 number system using only 0 and 1. |
Denary A base-10 number system using digits 0–9. |
Bit The smallest unit of data, storing either 0 or 1. |
Byte A group of 8 bits. |
Overflow When a calculation exceeds the available number of bits. |
Sign Bit The bit used to represent whether a number is positive or negative. |
Sign & Magnitude A method for storing negative numbers using a sign bit and value bits. |
Two’s Complement A method for storing negative numbers by inverting bits and adding 1. |
Fixed Point Representation where the binary point position is fixed. |
Floating Point Representation using mantissa and exponent. |
Mantissa The part of a floating point number storing precision. |
Exponent The part of a floating point number controlling scale. |
Normalisation Adjusting a floating point number to maximise precision. |
Hexadecimal A base-16 number system using digits 0–9 and A–F. |
ASCII A character set that assigns binary codes to characters. |
Unicode A character set designed to represent many world languages. |