Punjab Computer Science Online 9th Class Test Lesson 8 Introduction to Windows

The Chapter 8th (Introduction to Windows) is about Computer Operating system windows.The study of the theoretical foundations of information and computation, and of practical techniques for their implementation and application in computer systems. It is frequently described as the systematic study of algorithmic processes that describe and transform information. Its providing us many options and facilitating us with its latest feature. Introduction to Windows Lesson 8 Computer Science Online Test ... Continue Reading →

Punjab Computer Science Online 9th Class Test Lesson 7 Computer Software

In the Chapter no 7 (Computer Software) you have read about the Computer Software that what is the Computer Software. Computer Software is the collection of Computer programs That perform a particular task. In other words you can say “written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory”. Computer Software Lesson 7 Computer Science Online Test 9th Below Please go to Punjab Computer ... Continue Reading →

Punjab Computer Science Online 9th Class Test Lesson 6 Boolean Algebra

In this chapter you had read about the Algebra’s new form “Boolean Algebra”. The Boolean Algebra is the Algebra of Logic. Boolean Algebra uses symbol to represent logical statements instead of words. a system of symbolic logic devised by George Boole, it used in computers. In other words, Study of mathematical operations performed on certain variables (called binary variables) that can have only two values. Boolean Algebra Lesson 6 Computer Science Online Test 9th Below Please ... Continue Reading →

Punjab Computer Science Online 9th Class Test Lesson 5 Number System

What is the Number System, and where we use it and why. You had read very deep about it in the Computer Science subject of 9th Class and here you should appear in the Online Test about this chapter and check your preparation for your examination. A number is a mathematical object used to count, label, and measure. There are several number systems that are important to computer science. Binary, hexadecimal, and octal refer to different number systems. Number System Lesson 5 Computer Science Online ... Continue Reading →

Punjab Computer Science Online 9th Class Test Lesson 4 Storage Devices

You had read in this chapter about the Storage devices of Computer, that what is Storage Devices? A piece of computer equipment on which information can be stored that called Storage device of Computer. A storage device may hold information, process information, or both. A device that only holds information is a recording medium.Storage devices are hardware devices that are capable of storing information in a computer. Storage Devices Lesson 4 Computer Science Online Test 9th Below Please go to ... Continue Reading →
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