SST(CS) 6th class lecture notes for Punjab teachers

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(1) What is a computer?........................................................................................................................
A Computer is an electronic machine, which accepts Data, performs calculation and produce results.
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(2) Define Data or what is a Data? ......................................................................................................
Data is a collection of raw facts and figures, given to computer for processing.
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(3) Define Information or what is a Information? ..……………………………………………………….
Information is the processed or meaningful Data that is understandable by a person.
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(4) Define Process or What is process? .............................................................................................
Process is action that is performed on Data to convert it to Information.
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(5) What are the advantages or features of Computers?..................................................................
Computers have become essential part of our life due to these features: High Speed, Accuracy, High Power of Remembering things and versatility. ……………………………………………………................
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(6) Define Hardware or What is a Hardware? ………………………………….…………………………
The physical parts or devices of the computers that we see and touches are known as Hardware e.g. keyboard
…………………………………………………………………………………………………………………… (7) Define Software or What is software? …………………………………………………………………
The Parts of computers which are intangible, these consist of programs or set of instructions