Page 21 - Viva ICSE Computer Studies 3 : E-book

Example 2: Heating the food in the oven involves the following.
• Food to be heated and microwave are the inputs.

• Heating of food at a certain temperature for a given period of time is processing.

• The hot food obtained is the output.

Input Processing Output

Example 3: Making fruit juice involves the following.

• Fruits and juicer are inputs.

• Mixing of fruits in the juicer is processing.

• The fruit juice we get is the output.

Input Processing Output

Computer Etiquette

Always maintain a correct posture while working on a computer. Keep your back straight and
shoulders relaxed. Also maintain a distance of 18–24 inches from the monitor.

Tech Terms
Computer: Smart machine
Software: Set of instructions that perform a specifi c task

Hardware: Parts of computer that we can see and touch
CPU: Brain of computer
Keyboard: Hardware device used to enter data

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