P4- Describe how data can be represented in control systems
In this report I am going to explain the 4 different types of coding which are binary,
Hexadecimal, BCD (Binary coded decimal) and ASCII. I will also explain Logical
operators and Numbers.
Binary
Binary is also known as ‘Base 2’, this is because the computer system only uses 2
number values which are 0 and 1. The core computing system is ran by binary which
is how it preforms calculations, this system gets more advanced. Each single binary
containing 8 bits each. The binaries can also be represented by different numbers
such as true/ false or Positive/ Negative. To perform complex calculations the
binaries will calculate together, the diagram below shows this. All these binaries can
be used to show data on a computer such as text, videos and images.
Hexadecimal
Hexadecimal also known as ‘Base 16’. This type of code was created for advanced
and complex calculations that is easy for us humans and more visually appealing,
however the computer will just recalculate the code in 0 and 1. The hexadecimal
binary consists of 16 numerical values which are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D,
E and F. However in hexadecimal the digits cannot be repeated such as 10, 101 etc.
Each of these hexadecimal digits represents 4 bits each so for example 11010100 in
binary would be D4 in hex. Hexadecimals are used to represent different colours for
example the format is #FFFFFF
In this report I am going to explain the 4 different types of coding which are binary,
Hexadecimal, BCD (Binary coded decimal) and ASCII. I will also explain Logical
operators and Numbers.
Binary
Binary is also known as ‘Base 2’, this is because the computer system only uses 2
number values which are 0 and 1. The core computing system is ran by binary which
is how it preforms calculations, this system gets more advanced. Each single binary
containing 8 bits each. The binaries can also be represented by different numbers
such as true/ false or Positive/ Negative. To perform complex calculations the
binaries will calculate together, the diagram below shows this. All these binaries can
be used to show data on a computer such as text, videos and images.
Hexadecimal
Hexadecimal also known as ‘Base 16’. This type of code was created for advanced
and complex calculations that is easy for us humans and more visually appealing,
however the computer will just recalculate the code in 0 and 1. The hexadecimal
binary consists of 16 numerical values which are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D,
E and F. However in hexadecimal the digits cannot be repeated such as 10, 101 etc.
Each of these hexadecimal digits represents 4 bits each so for example 11010100 in
binary would be D4 in hex. Hexadecimals are used to represent different colours for
example the format is #FFFFFF
