- Representation of positive numbers in binary including place values and range up to and including 32 bits
- Conversion from binary to decimal and vice versa
- Description of the representation of negative numbers using two’s complement using examples of up to 8 bit numbers
- Description of the relationship between the number of bits assigned to the mantissa/exponent and the range and precision of floating point numbers
- Conversion to and from bit, byte, Kilobyte, Megabyte, Gigabyte, Terabyte. (Kb, Mb, Gb, Tb)
- Description of Unicode and its advantages over ASCII
- Description of the bit map method of graphic representation using examples of colour/greyscale bit maps
- Description of the relationship of bit depth to the number of colours using examples up to and including 24 bit depth (true colour)
- Description of the vector graphics method of graphic representation
- Description of the relative advantages and disadvantages of bit mapped and vector graphics
- Description of the relationship between the bit depth and file size
- Explanation of the need for data compression using the storage of bit-map graphic files, as examples