**introduction, basic concepts**

What is a computer ?

Utilisation of the computers

What are the parts of a computer ?

Peripheriques connected to a computer

data, information

processing

Difference between the computer and the calculator

Structure of a simple machine

Hardware - software

program execution

arithmetic and logical unit

bus

memory, address, value

register

control unit

addressing modes

- 4,3,2,1,0 address instructions

- data transfer instructions
- arithmetic and logical instructions
- program control instructions
- I/O instructions
- system control instructions

binary system

number conversions (base 2 <-> base 10)

positive integer numbers

signed integer numbers

sign magnitude representation

1's complement representation

2's complement representation

excess-N representation

fixed point representation

normalisation

floating point representation (IEEE 764 standard)

ASCII

logical gates

logical circuits

Istenes Zoltán

2000 oct. 16.