Page 60 - Viva ICSE Computer Studies 8 : E-book

Computer Etiquette

Write the steps of an algorithm systematically and draw fl owcharts eff ectively so as to obtain correct
results. Skipping a step can lead to faulty results.

Tech Terms

Algorithm: A textual representation of a program
Alterations: Changes
Flowchart: A graphical representation of a program
Program: A set of instructions

Quick Recall

• A computer can only understand the instructions given in machine language.
• Writing a program involves various steps.
• An algorithm should be well-ordered, clear and eff ectively computable.

• Writing an algorithm is the fi rst step in generating a program.
• After writing the algorithm, a fl owchart is drawn which is converted into a program.
• A fl owchart is a graphical representation of a program which uses some basic symbols.

A. Name the following.

1. Step-by-step instructions to perform a specifi c task ____________

2. Two standard symbols used in a fl owchart ____________ ____________
3. Pictorial form of an algorithm ____________
4. Line indicating the fl ow of data in a fl owchart ____________
5. Symbol used to connect one part of a fl owchart to another ____________

B. Fill in the blanks.

1. An algorithm must begin with _______________.
2. An algorithm must end with _______________.

3. _______________ are used to draw a fl owchart.
4. _______________ joins a fl owchart from one page to another.

5. _______________ is a process of following one or two or more alternate paths of computation.

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