PC world
 
Since 1975, the U.S. had started mass production of personal computers (PCs). This event is often called the second information revolution (the first information revolution is the emergence of the printing press and printing - 1445). PC appeared on the basis of mini-and micro computers for personal computing, that is, for the work of the expert in a particular subject area in the workplace. PC display for the user was able to sit - amateur programming. In 1981, personal computers were produced, with a block-modular design. These are simple to use and relatively cheap cars marketed to consumers who do not have knowledge in computer science and programming. Widespread minicomputers in the early 1970's. by the need to bring the computer to the user. Mini computer installed in businesses and organizations that use mainframes were unprofitable.
Thus, PC - a computer intended for individual use. Currently, it is a powerful general-purpose computer, it successfully works both at home and at work in the office, can be easily connected to various computer networks.
8-bit microprocessor (1975 - 1980.) 16-bit (1981 - 1985.) 32-bit (1986 - 1992 years.) 64-bit (1993 - present). Important role in the development of PC played by the emergence computer IBM PC, produced corporation IBM (USA) on Intel-based microprocessor 8086 in 1981 This PC has taken a leading position in the market of their kind. Its main advantage - the so-called open architecture, through which users can expand the capabilities of computers purchased by adding various peripheral devices, and upgrading your computer. In the future, other companies have started to create their own PC, but the computer IBM PC became a kind of standard in the class of personal computers. Today, more than 85% of the market for PC based on the architecture of the IBM PC. Classified as intended for consumer PCs, general and professional. Household and general purpose PC designed for the mass market, so they should be fairly cheap, reliable, and have, as a rule, just a basic configuration. PCs use in the home entertainment (video games), education, etc. However, the architecture of these machines allows them to connect to the communication channels, expanding set of peripherals. These computers are also used to working with text, the solution of scientific and engineering problems. On the PC, a general-purpose work, primarily by amateur. Therefore, such computers are equipped with advanced software, including operating systems, compilers with algorithmic languages, application packages. Professional PCs are used in science to solve complex information and industrial applications that require high performance, efficient transfer of large amounts of information, rather large capacity memory. By connecting a large set of peripherals, PC functionality is greatly enhanced. They can multitask with algorithmic high-level languages, as part of networking. In performance to multi-professional PC is not only close to the previous generation of mainframe computers, but can compete with them. |
