Data representation: Difference between revisions
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[[File:binary.png|frame|right|This is a basic concept in computer science]] | [[File:binary.png|frame|right|This is a basic concept in computer science]] | ||
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Computer programs are sets of instructions. Each instruction is translated into machine code - simple binary codes that activate the CPU. Programmers write computer code and this is converted by a translator into binary instructions that the processor can execute. | Computer programs are sets of instructions. Each instruction is translated into machine code - simple binary codes that activate the CPU. Programmers write computer code and this is converted by a translator into binary instructions that the processor can execute. | ||
All software, music, documents, and any other information that is processed by a computer, is also stored using binary.<ref>http://www.bbc.co.uk/education/guides/zwsbwmn/revision/1</ref> | All software, music, documents, and any other information that is processed by a computer, is also stored using binary.<ref>http://www.bbc.co.uk/education/guides/zwsbwmn/revision/1</ref> | ||
To include strings, integers, characters and colours. This should include considering the space taken by data, for instance the relation between the hexadecimal representation of colours and the number of colours available. | |||
Revision as of 13:17, 22 August 2016
Computers use binary - the digits 0 and 1 - to store data. A binary digit, or bit, is the smallest unit of data in computing. It is represented by a 0 or a 1. Binary numbers are made up of binary digits (bits), eg the binary number 1001. The circuits in a computer's processor are made up of billions of transistors. A transistor is a tiny switch that is activated by the electronic signals it receives. The digits 1 and 0 used in binary reflect the on and off states of a transistor. Computer programs are sets of instructions. Each instruction is translated into machine code - simple binary codes that activate the CPU. Programmers write computer code and this is converted by a translator into binary instructions that the processor can execute. All software, music, documents, and any other information that is processed by a computer, is also stored using binary.[1]
To include strings, integers, characters and colours. This should include considering the space taken by data, for instance the relation between the hexadecimal representation of colours and the number of colours available.
Why is data stored in binary[edit]
Click here for a link to learn about storing data
Do you understand this topic?[edit]
- What is ascii?
Do you have an advanced understanding about this topic?[edit]
- convert number to ASCII and vice-versa