Computer Literacy

Topics: Personal computer, Laptop, Desktop computer Pages: 2 (515 words) Published: December 7, 2013
A computer is an electronic device, operating under the control of instructions stored in its own memory that can accept data, process that data, produce results, and store the results for future use. Computers come in many different shapes and sizes. They can be found almost any and everywhere in the world, in the workplace and personal life. Using computers is a primary means of local and global communication. There are different categories of computers: personal, mobile, game consoles, servers, mainframes, supercomputers, and embedded computers. Each type has their own unique qualities and does different things. Personal computers are computers that can perform all of its input, processing, output, and storage activities by itself. They contain a processor, memory, and one or more input, output, and storage devices. They also contain a communications device. Two different types of a personal computer are desktop and notebook computers. Desktop computers usually have a monitor, system unit, and keyboard which is designed to be placed under one desk. Notebook computers are personal computers that are portable and designed to fit on your lap. On a regular notebook computer, the keyboard is on top of the sytem unit, and the display is attached to the system unit with hinges. They have all the same qualities of a desktop computer just compact into a thin lightweight size. Mobile devices are also a types of computers. Different types are smartphones, PDAs, E-book Readers, MP3 and digital cameras. They often use memory cards to store programs and data permanently. These mobile devices are Internet-enabled, connecting them to the world. Because of the size difference, mobile device screens are small. Smartphones hold different personal information management functions such as, address book, calculator, and notepad. These phones also allows you to send text, instant, picture, and video messages. All these types of computers are small sized and easy to carry around....
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