TOPIC 2.COMPUTER SYSTEM

WHAT IS A COMPUTER???
An electronic device , operating under the control of instructions stored in its own memory , that 

• accept data(input)
• process data 
• produce information(output)
• store information for future use

THE COMPONENTS OF A COMPUTER:

• HARDWARE

THE COMPONENTS OF A COMPUTER 

• SOFTWARE

COMPUTER BASED INFORMATION PROCESSING / INFORMATION PROCESSING CYCLE

• INPUT 
• PROCESS
• OUTPUT
• STORAGE

INPUT-

• Any data and instructions entered into the memory of a computer.

PROCESS

• Performing operation on the data OR
• Transforming data into information

OUTPUT

• Presenting the results OR data that has been processed into a useful form.

STORAGE

• Hold data , instructions and information for future use

HOW TO REMEMBER MORE EFFICIENT