1. Data Representation – Instructions
Program instructions and data are stored by the computer in binary in the same place.
When computer is instructed to run a program it is directed it to the start address for these data and instructions
The CPU fetches the first instruction from this start location and decodes it to find out what to do next – the program counter is updated to point at the next memory location for the next instruction
Program instruction has two parts – the instruction part (OPERATOR) and the data part (OPERAND)
For example 1 1 1
OPERATOR
ADD to the accumulator
OPERAND
Contents of memory location 1101

2. Data Representation – Instructions
Read page 87 in your text books
Answer the questions on page 88.
The extension questions should read