PC is an abbreviation for the word āpersonal computerā. Translated from English, ācomputerā means ācalculatorā. First of all, computers can carry out complex computational operations without human intervention according to a given instruction - the so-called program.
When answering the question of what a PC is, one should touch on the history of computer technology. Its beginning was laid back in 1943, when IBM created the Mark-1 machine. The first computers were tube computers. Then they were replaced by transistor computers (electronic computers), then computers appeared using integrated circuits. Finally, they were replaced by electronic computers with the most integrated circuits.
The first personal computers, that is, computers intended for individual use, appeared in 1981.
Currently, the computer allows not only numerical calculations, but also makes it possible to prepare books for printing, create films, music, paintings, manage production and so on. That is, the computer has become a universal tool for processing various types of information.
Modern computers are devices for searching, storing, converting, collecting and using information in digital format.
How does a pc work?
When answering the question of what a PC is, one should also clarify how a personal computer works. Computers work with the help of software, which consists of application and system programs, as well as programming systems.
The main system program is the operating system that organizes the computer's data processing. All PC devices are controlled by it, data is exchanged between various devices and a computer, between a PC and a person, and so on.
The power of personal computers is constantly increasing, the scope of their use is expanding. They can be networked, thereby enabling hundreds of users to easily share information. Thanks to e-mail, it became possible to instantly receive or send a letter and other files to people living in other cities and countries.
The scope of use of computers is not limited. For representatives of various professions, this machine has become an integral tool of work. PCs allow automated control of harmful or complex production, ensure the smooth operation of complex units, carry out professional retraining of personnel, perform repeated operations and so on. Thanks to this smart machine, users have many opportunities, including communication through the network, improving the quality of education, access to world resources. In medicine, computers allow you to automate patient records, keep electronic medical records , diagnose and establish accurate diagnoses. Scientists use computers to model costly and complex experiments. Programs allow you to adjust data in projects and monitor the progress of the experiment from the monitor screen. For this, the level of PC knowledge of modern scientists should be at a very high level.
In banking, computers are used everywhere for financial settlements, various operations, including processing checks, registering changes in deposits and so on. Modern banking workers are well aware of what a PC is, because their work is closely related to the use of computers.
In trade, computers make it possible to accelerate settlements with customers, keep the quantity of goods under constant control, and maintain an automatic database.
And, of course, a computer is very useful in everyday life. It is used for correspondence with friends, access to the latest news, home accounting, leisure activities.
Now, I hope you do not have a question, what is a PC and where are computers used. It is already difficult to imagine modern life without microprocessors, mobile phones and laptops.