# AQA AS Computing Unit 1

Notes i made/put together myself during my lessons hopefully its useful.

- Created by: Mercy
- Created on: 17-04-13 22:29

First 221 words of the document:

Chapter 1

1.1 Principle of computation

Aims:

· What computing is?

· The meaning of computation and computability;

· The difference between algorithms and programs;

· The two main principles of computation: abstraction and automation

Key Terms

Computing: The study of the natural and artificial information process

Computability: Measures what can and cannot be computed

Computation: The act or process of calculating or determining something by mathematical,

logical or interactive methods

Artificial Intelligence: A branch of computing that studies the use of computer to perform

computational processes normally associated with the human intellect

Algorithm: A description, independent of ant programming language, of a process that

achieves some task. It is a rep-by-step procedure for solving a problem

Deterministically: without guessing a solution before confirming it

Program: A description in a programming language of a process that achieves some useful

results

Notes

Computing is also a study of how to compute. This means a study of the process of

computation

How we do things

How we specify what we do

How we specify what we're processing

Questions

1. What is meant by computation?

The act or process of calculating or determining something by mathematical,

logical or interactive methods.

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