Data Representation
Course Content Specification
Describe and exemplify the use of binary to represent positive and negative integers using two’s complement, including the range of numbers that can be represented using a fixed number of bits.
Conversion of two’s complement numbers from binary to denary and vice versa.
Describe and exemplify floating-point representation of positive and negative real numbers, using the terms mantissa and exponent.
Describe the relationship between the number of bits assigned to the mantissa/exponent, and the range and precision of floating-point numbers.
Describe Unicode used to represent characters and its advantage over extended ASCII code (8-bit) in terms of numbers of characters.
Describe the relative advantages and disadvantages of bit-mapped graphics versus vector graphics.
In this topic you will develop an understanding of how data and instructions are stored in binary form.
There are 5 main topics in this section.
Higher Data Rep - Mind Map
![](https://www.google.com/images/icons/product/drive-32.png)