Introduction seeks to empower you with knowledge about computers that you require to go about your daily activities and more. In this day and age, computers have a profound influence on our lives. Most of us are familiar with computers in one or more forms – Desktop machines, laptops, tablets and phones. Our aim is to provide you with an understanding of computers and related stuff like software, packages, maintenance and the like.

It all began in 1822 when Charles Babbage began developing the ‘Difference Engine’, which was capable of computing several sets of numbers and making a hard copy of the results. However, it was only in the last century that development of computers began in right earnest. Computers have since evolved into faster, cheaper and more portable machines. Currently, the major computer manufacturing companies include Apple, Dell, Lenovo, Sony, Compaq, Toshiba, HP, and others.

A physical computer is made up of elementary hardware components like registers memory and counters. These elementary components are used to create more complex components like processors and hard disks which in turn make up a computer. Computer software is a collection of instructions that enables a user to interact with the computer and thereby have the computer perform specific tasks for him. Software includes operating systems like Windows 7 and UNIX, programming languages like C and C++, and packages like MS Word and Internet Explorer. As you may have figured, without software, a computer would be useless. Hardware and software complement each other and a computer system is generally considered to be a combination of both.

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