Published on June 14, 2016
Introduction To Computers: Introduction To Computers Krupakar Reddy N Aaditya Computers Narayanpet. Definition: Definition Computer is an electronic device that is designed to work with Information. The term computer is derived from the Latin term ‘ compute ’, this means to calculate or programmable machine . Uses of Computers: Uses of Computers Education Business Animation Movies Games Types of Computers : Types of Computers Computers are divided into three types, 1.Digital Computers 2.Analog Computers 3.Hybrid Computers Types of Computers : Types of Computers Hybrid Computers Micro Computers Mini Computers Mainframe Computers Super Computers : Components of Computers: Components of Computers CPU Monitor Keyboard Mouse CPU – Central Processing Unit: CPU – Central Processing Unit The computer is controlled by its Central Processing Unit ( CPU ). The CPU is the brains of the computer . Sometimes referred to simply as the central processor or Nerve Centre or heart , but more commonly called processor , the CPU is where most calculations take place. Monitor : Monitor A monitor is a computer display unit, it is known as Output Device. These are three types, they are: CRT Cathode Ray Tube LCD – Liquid Crystal Display LED – Light Emission Display Keyboard: Keyboard A keyboard is the set of typewriter-like keys that enables you to enter data into a computer and other devices. Computer keyboards are similar to electric-typewriter keyboards but contain additional keys. Christopher Latham Sholes (February 14, 1819 – February 17, 1890) was an American inventor who invented the first practical typewriter and the QWERTY keyboard still in use today. Mouse: Mouse A device that controls the movement of the cursor or pointer on adisplay screen. A mouse is a small object you can roll along a hard, flat surface. The computer mouse as we know it today was invented and developed by Douglas Engelbart , with the assistance of Bill English, during the 1960's and was patented on November 17,1970. Software: Software Software is a collection of instructions that enable the user to interact with a computer, its hardware, or perform tasks. Without software, computers would be useless. Hardware: Hardware Hardware is described as any physical component of a computer system that contains a circuit board, ICs, or other electronics . Operating System: Operating System An operating system or OS is a software on the hard drive that enables the computer hardware to communicate and operate with the computer software. Ms-Dos: Ms-Dos Ms-Dos Commands are classified into two types. Internal Commands External Commands Internal Commands: Internal Commands External Commands: External Commands Windows: Windows Windows is a series of operating systems developed by Microsoft. Each version of Windows includes a graphical user interface, with a desktop that allows users to view files and folders in windows. Windows - Tools: Windows - Tools Ms- Office: Ms- Office Word Excel Power point Access Ms-Wrod: Ms-Wrod Microsoft Word is a word processing program developed for the Windows and Macintosh platforms. The first version of Word was released for DOS in 1983 and had a text interface. Microsoft released "Word for Windows" in 1989, and it soon became the most popular word processing program on any platform. In 1995. Ms-Excel: Ms-Excel Microsoft Excel is a spreadsheet program for Windows and Macintosh computers. Though Excel is developed by Microsoft, the first version of the program was released for the Macintosh in 1985. It wasn't until 1987, when Microsoft introduced Windows 3.0, that Excel was made available for Windows Ms-Power point : Ms-Power point PowerPoint is a presentation program developed by Microsoft. The software allows users to create anything from basic slide shows to complex presentations. PowerPoint is often used to create business presentations, but can also be used for educational or informal purposes. Ms-Access: Ms-Access Microsoft Access, often abbreviated "MS Access," is a popular database application for Windows. Access allows users to create custom databases that store information in an organized structure. The program also provides a visual interface for creating custom forms, tables, and SQL queries. Internet: Internet The Internet is a global wide area network that connects computer systems across the world. It includes several high-bandwidth data lines that comprise the Internet "backbone." These lines are connected to major Internet hubs that distribute data to other locations, such as web servers and ISPs . Email: Email Email, short for "electronic mail," is one of the most widely used features of the Internet, along with the web. It allows you to send and receive messages to and from anyone with an email address, anywhere in the world. Shiva Ayyadurai is an American scientist, inventor and entrepreneur of Indian origin. As a high school student in 1978-1979, he developed an electronic version of an interoffice mail system, which he called "EMAIL" and copyrighted in 1982. Browsers: Browsers A web browser, or simply "browser," is an application used to access and view websites. Common web browsers include Microsoft Internet Explorer, Google Chrome, Mozilla Firefox, and Apple Safari. Search Engines: Search Engines Google, Excite, Lycos, AltaVista, Info seek, and Yahoo are all search engines. They index millions of sites on the Web, so that Web surfers like you and me can easily find Web sites with the information we want. E-commerce: E-commerce E-commerce (electronic-commerce) refers to business over the Internet. Web sites such as Amazon.com, Buy.com, and eBay are all e-commerce sites. The two major forms of e-commerce are Business-to-Consumer (B2C) and Business-to-Business (B2B). E-banking: E-banking Online banking , also known as internet banking , e-banking or virtual banking , is an electronic payment system that enables customers of a bank or other financial institution to conduct a range of financial transactions through the financial institution's website.