Computer (computador) is a device that stores data in accordance with a list of instructions can manipulate. It is a kind of data processing.
Today is the computer (computador) has become indispensable in every household and comes in numerous physical forms. The first modern computer was in the middle of the 20th Century developed, although the concept of computer (computador) and various other machines has given. It actually began in 1837 as "The Analytical Engine", the firstfully programmable mechanical computer, was developed by Charles Babbage.
The earlier versions were huge and bulky and used up an entire room. The device EDSAC (electronic Delay Storage Automatic Calculator) was one of the first computers to the stored program architecture could be executed. Compared to them, modern computers (computador) have tiny integrated circuits and are much better in terms of capacity and speed and accuracy. Today `s tinier version can fit in yourWatch Clock and operated by the battery. Personal computers in almost every house today and in different forms. They are in fact the icons of the Information Age.
What makes computers (computador) is very diverse and distinct from other devices is that it can be programmed. A computer can calculate just how a washing machine can wash only, but a computer can be programmed to be done to any type of work. Software programs are a list of instructions that canbe stored and executed by the computer.
A general computer (computador) has four main sections, the arithmetic and logic unit or ALU, the control unit or CU, memory and the interface for input and output devices. These parts of the computer are connected by buses with each other. The ALU, control unit, registers, and the interface for input and output devices are used together as the Central Processing Unit or CPU known. The Early CPUs used to be composed of various individual components, butSince 1975, the CPUs are built on a single integrated circuit, the microprocessor.
The ALU for arithmetic and logical operations of the computer, while the control unit is responsible for managing the various parts of a computer (computador). His job includes reading and interpreting the instructions of the programs one by one and converts it into control signals for the operation of other parts of the computer.
The earlier version of computer (computador) uses magnetic coreMemory, but today it has been replaced by semiconductor memory. The main memory of the computer is divided into two parts, RAM, or Random Access Memory, and ROM or read-only memory. RAM can be written and read at any time by CPU commands. On the other side is pre-installed ROM with software and data that never changes, and it can only read by the CPU.
I / O hardware is by means of which to receive a computer (computador) information from the outside world and also sends back results.Common input devices are keyboard and mouse. While common output devices include monitor and printer. There are some devices that serve as both an input and output devices such as hard drives, optical drives, floppy drives, etc.
Internet has changed our literary life. Today, people all kinds of information on various topics search, advertising their company or products, give information to a large group of people and much more by just a few mouse clicks. WhetherTo search for a new home or compare the prices of the latest mobile or submit your form college or read the latest Harry Potter book, everything can be done on the Internet through your computer.
With increase of computers (computador) and its applications, an increasing number of occupations with computers have developed. Computer-related occupations include electrical engineering, nanotechnology Telecommunications Engineering, Software Engineering, Web Design, DesktopPublishing and Optical Engineering.
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