Understandings Computer Are

Computer

Computers are tools used to process the data according to the procedures that have been formulated. Said the computer was originally used to describe people who perkerjaannya perform arithmetic calculations, with or without hearing aids, but the meaning of the word is then transferred to the machine itself. Origins, processing information almost exclusively related to arithmetical problems, but modern computers are used for many tasks unrelated to mathematics.

In the sense that there are tools such as slide rules, mechanical calculators types ranging from abacus and so on, until all the contemporary electronic computers. The term better suited to a broad sense such as "computer" is "that process information" or "information processing systems." Over the years there have been several different meanings in the word "computer", and several different words are now referred to as the computer.

Said computer once commonly used to define people who perform arithmetic calculations, with or without auxiliary engine. According to Barnhart Concise Dictionary of Etymology, the word is used in English in 1646 as the word for "people who count" and then before 1897 is also used as a "mechanical calculators". During World War II, the word refers to the USA and UK female workers whose jobs calculate artillery street war with the machine count.

Charles Babbage designed one of the first calculating machine called the analytical engine. In addition, a variety of simple mechanical devices such as slide rule also has to be said as a computer.

Kind

Nevertheless, the above definition includes many specialized tools that can only take into account one or several functions. When considering modern computers, trait that most distinguishes them from counters the foregoing is the programming properly, all the computers can emulate nature whatsoever (though perhaps limited by the storage capacity and different speeds), and, it is believed that a machine could now emulate computing tool that will be created humans in the future (although undoubtedly slower). In a sense, the limit is a useful test for the computer to recognize the "common purpose" of a special purpose tool that early. The definition of "general intent" can be formulated in terms that a machine should be able to emulate the universal Turing machine. Engine that gets this definition is known as a Turing-complete, and which first appeared in 1940 in the midst of worldwide development. See the history of computing article for more details of this period.

Embedded Computers

About 20 years ago, many household appliance, particularly a panel of video games also include mobile phones, video cassette recorders, PDA's and a lot of in household, industrial, automotive, and other electronic devices, all containing electronic circuits such as a qualified computer Turing-complete on top (with a note that the program of the tool is often made directly on-chip ROM will need to be replaced to change the engine program). Other special purpose computer that is generally known as the "microcontroller" or "embedded computer" (embedded computer). Therefore, many of which limits the definition to the computer is a tool that essentially mean the processing of information, rather than being part of a larger system such as telephone, microwave oven, or a plane, and can be modified for various purposes by the user without physical modification. The main frame computers, minicomputers and personal computers (PC) are the main types of computers that receive this definition.

Personal computer

Personal computer or personal computer (PC) is the term for a computer that many people know in general so many people are not familiar with computers other than the personal computer form. Only certain people who use the term exclusively to indicate the term more specific and precise.

The personal computer was first introduced in Indonesia in 1980 by the late Eddy Liew, founder of Dragon Computer & Communication via the Sinclair brand from England.

How does Computer

Currently, the technology used in digital computers have changed dramatically since the first computers in the 1940s (see History of the hardware count for more detail), most computers are still using the Von Neumann architecture, which was proposed in the early 1940s by John von Neumann ,

Von Neumann architecture describes a computer with four main sections: the Arithmetic and Logic Unit (ALU), control unit, memory, and input and output devices (collectively termed I / O). This section is connected by a wire bundle, "bus"

Memory

In this system, memory is a sequence of bytes numbered (such as "cells" or "pigeon holes"), each containing a small piece of information. This information may be a command to tell the computer what to do. Cells may contain data that is necessary for the computer to perform a command. Each slot may contain one, and what is now the data may then become orders.

Memory store various forms of information as binary numbers. Information that is not going to solve a binary form (encoded) with a number of instructions that turn it into a sequence of numbers or figures. For example: The letter F is stored as a decimal number 70 (or binary digits) using one of the methods solving. More complex instructions can be used to store images, sound, video, and various kinds of information. The information can be stored in a sell is called a byte.

In general, the memory can be rewritten over millions of times - the memory can be likened to the blackboard and chalk can be written and erased again, rather than a notebook with a pen that can not be removed.

The size of each cell, and the cell number, change terrific from computer to computer, and technology in the manufacture of memory has changed terrific - from electromechanical relays, to a tube filled with mercury (and later springs) in which acoustic pulses are formed, until the matrix of permanent magnets, to individual transistors, to integrated circuits with millions of transistors on a single silicon chip.

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