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Boolean Algebra

The Boolean algebra was developed by the English mathematician George Boole; it deals with statements in mathematical logic, and puts them in the form of algebraic equations. The Boolean algebra was...

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Introduction to Computers

Chapter# 1                         Introduction to Computers Q.1 Define Computer Answer:  A Computer is an automatic electronic, calculating device which can process a given input in a prescribed...

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Input and Output Devices

Input and Output Devices 9th Class Computer Notes PRINTER A computer peripheral that puts text or a computer generated image on paper or on another medium, such as a transparency. Printer can be...

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Chemistry 9th Chapter No. 1 Chemistry – An Introduction (Long Questions)

1.    What is Chemistry? Explain its branches. Chemistry: The branch of science which deals with the composition and properties of matter, changes in matter and the laws or principles which govern...

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Chemistry 9th Chapter No. 1 Chemistry – An Introduction (Short Questions)

1.    What is meant by science? Science is the knowledge, with the help of which man gets information about himself and his environment. He then tries to arrange this gathered information and explain...

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Physics Notes-9th

What Is Physics? Physics is considered to be the most basic of the natural sciences. It deals with the fundamental constituents of matter and their interactions as well as the nature of atoms and the...

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