What is a Computer? A Webopedia Definition. Main » TERM » C » By Vangie Beal. A computer is a programmable machine. The two principal characteristics of a computer are: It responds to a specific set of instructions in a well- defined manner and it can execute a prerecorded list of instructions (a program). Modern Computers Defined. In computing, a program is a specific set of ordered operations for a computer to perform. In the modern computer that John von Neumann outlined in 1945, the program. The 100 Best Computer Science Programs in the World! The father of the scientific method, Francis Bacon, famously observed that, “knowledge is power.”. If you’re an employee in the Philippines who wants to start a small scale business while working then this is for you! Many people when asked “what’s your plan. Modern computers are electronic and digital. The actual machinery — wires, transistors, and circuits — is called hardware; the instructions and data are called software. All general- purpose computers require the following hardware components: In addition to these components, many others make it possible for the basic components to work together efficiently. For example, every computer requires a bus that transmits data from one part of the computer to another. Computer Classification: By Size and Power. Most people associate a personal computer (PC) with the phrase computer. PCs are based on the microprocessor technology that enables manufacturers to put an entire CPU on one chip. Personal computers at home can be used for a number of different applications including games, word processing, accounting and other tasks. Computers are generally classified by size and power as follows, although there is considerable overlap. The differences between computer classifications generally get smaller as technology advances, creating smaller and more powerful and cost- friendly components. Personal computer: a small, single- user computer based on a microprocessor. In addition to the microprocessor, a personal computer has a keyboard for entering data, a monitor for displaying information, and a storage device for saving data. Workstation: a powerful, single- user computer. A workstation is like a personal computer, but it has a more powerful microprocessor and a higher- quality monitor. Minicomputer: a multi- user computer capable of supporting from 1. Mainframe: a powerful multi- user computer capable of supporting many hundreds or thousands of users simultaneously. Supercomputer: an extremely fast computer that can perform hundreds of millions of instructions per second. Recommended Reading: Webopedia's Computer Architecture Study Guide is an introduction to computer system basics. We support America's small businesses. The SBA connects entrepreneurs with lenders and funding to help them plan, start and grow their business. The 100 Best Places to Work in IT 2017. Tech pros, where do you want to work? Read Computerworld's new Best Places to Work in IT special report to find out which.
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