What is a computer: A computer is an electronic device that executes the instructions in a program. A device that accepts data‚ processes the data in accordance with the stored program‚ generates results and usually consists of input‚ output‚ storage‚ Airthmatic logic and control units. A computer has four functions: a. accepts data Input: Data or information written into the computer by user The Information Processing Cycle b.processes data Processing: The calculations performed according
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Computer Hardware came about when machines needed separate manual actions to be able to perform specific mathematical functions. Luckily in 1941‚ a man by the name of Konrad Zuse invented what was considered the first working‚ fully operable computer. Prior to this‚ most of the calculations were done manually to calculate by people with adding machines. Today these adding machines are better known as calculators. Back then‚ all you had to do is push buttons‚ but in today’s modern software technology
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5 basic operations performed by computer system Inputting Storing Processing Outputting Controlling The internal structure of a computer looks like above: Input unit: Input unit links the external environment with the computer system. Data and instruction must be entered to the computer before performing any competition. Data or instructions can be entered through input devices eg. Key board‚ or any other input devices. Input unit transferred this data into binary coded in short input unit
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Computers in Society Today computers are a part of everyday life‚ they are in their simplest form a digital watch or more complexly computers manage power grids‚ telephone networks‚ and the money of the world. Computers are a relatively new invention. The first computers were built fifty years ago and it is only in the last thirty or so years that their influence has affected our everyday life. Personal computers were introduced as recently as the early eighties. In this short time they
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Components of a Computer In the realm of modern business‚ computers are essential to success. In this paper‚ I will describe the different hardware (or physical) components of a computer. According to our text “These components include input devices‚ output devices‚ communications devices‚ primary and secondary storage devices‚ and the central processing unit (CPU).” (Stair‚ Reynolds‚ 2003). An input device is any device that transfers information from the outside world to the computer. These can
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Usefulness of the computers To start with‚ we live in the 21th century‚ in other words in the era of a great progress in most aspects of our life. Every day scholars of the whole world make some new discovering‚ invent new technologies‚ and do difficult research. Day by day people realize that their life becomes almost impossible without using different technological devices‚ and what is most curious‚ even in their everyday life. Talking about such so called “vital devices” we mean mobile phones
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Computer addiction‚ a loosely used term with Internet Addiction‚ or Video game addiction‚ is the excessive or compulsive use of computers to the extent that it interferes with daily life. This disorder may affect the following: social interaction‚ mood‚ personality‚ work ethic‚ relationships‚ thought process. It may also cause social disorders or possibly sleep deprivation. It is important to note that as of now‚ psychologists are not sure how to label this disorder. Many refer to it as Internet
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With increasing popularity of computer games‚ and multimedia home PC users often need an unexpensive computer system upgrade. By building a custom computer one is able to combine componenets‚ and operating system to provide maximal gaming performance. Computers are often called number manipulators‚ because of their ability to run millions of mathematical operations per second (White 43). Computers use binary system of numbers‚ which allows them to operate system of microscopic switches called transistors
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Computer Programming Programming a computer is almost as easy as using one and does not require you to be a math genius. People who are good at solving story problems make good programmers‚ and others say that artistic or musical talent is a sign of potential programmer. Various computer languages are described‚ and tips on choosing the right language and learning how to use it are provided. Learning how to program is actually easier than many people think. Learning to program takes about the
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Of the Computer By Kenneth H. Russell The invention of the personal computer took place about 50 years ago. Steve Jobs and others had developed the Apple+. Since then the whole world has affected by it in the following ways: 1. Computers balance financial transactions such as our personal bank account. 2. On a larger scale the IRS keeps track of every American in a variety ways by computer. 3. Our intelligence services keep track of people by computer who would do us harm. 4. Computers manufacture
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