CAT theory
Module 1.1 Introduction to computers
What is a computer?
Hardware and software
The information processing cycle
Outp
ut
Inpu Processin
t g of data
Stora
ge
Data is unprocessed items.
Information is the result of the processing of data and should be useful and
meaningful.
Introduction to Windows
The most important program on a computer is the one that controls all the
activities in the computer.
This is known as the operating system.
Start-up time
The operating system automatically loads when the computer is switched on.
We call this the booting process.
, CAT theory
Saving our work
Current work done on a computer is kept tempo airily in memory
To keep that work you must save it to storage
Save work in files – organize files in folders
Give files and folders meaningful names
The keyboard (Input)
Keyboard is known as QWERTY
Storage is long term.
Memory is short term.
Module 1.1 Introduction to computers
What is a computer?
Hardware and software
The information processing cycle
Outp
ut
Inpu Processin
t g of data
Stora
ge
Data is unprocessed items.
Information is the result of the processing of data and should be useful and
meaningful.
Introduction to Windows
The most important program on a computer is the one that controls all the
activities in the computer.
This is known as the operating system.
Start-up time
The operating system automatically loads when the computer is switched on.
We call this the booting process.
, CAT theory
Saving our work
Current work done on a computer is kept tempo airily in memory
To keep that work you must save it to storage
Save work in files – organize files in folders
Give files and folders meaningful names
The keyboard (Input)
Keyboard is known as QWERTY
Storage is long term.
Memory is short term.
