What does "computer" mean?
The Russian word "computer" comes from the English "computer", which means "computer". This term is called modern machines that process information in digital form. As you know, any information can be represented as a set of numbers: pictures, text, sound, image. Therefore, the computer has become an indispensable tool for working with any kind of data and is widely used in our lives.
Smart devices appeared in the 60s of the last century. Then they were called computers - electronic computers. In the 90s, the English version of the name began to be used in the country.
The principle of the computer
Today, almost everyone knows what “computer” means, is familiar with its structure and working principles. A smart machine also performs data processing with the help of a central processor consisting of a control device and an arithmetic logic unit. All data stored in a computer is stored in storage devices called memory, which is divided into
- Operational, it works faster and saves the data of the programs used.
- Permanent, which stores long-term information.
All computer work is based on a binary system of calculation, in which two numbers are used: 1 and 0. With the help of them you can put any information into the operational or permanent memory. To designate a binary system, the term “bit” was invented. The amount of information is measured in bytes, kilobytes, megabytes, gigabytes.
What does computer consist of?
The correct operation of the computer is provided by hardware devices and software. Important internal devices are microprocessors, motherboards, and interface boards. To external include: monitor, keyboard, mouse, modem, printer, scanner, speaker system.
Programs also come in many forms:
- Systemic They control the entire work of the computer. These include the operating system and programs that diagnose the health of the computer.
- Applied. Created for the convenience of the user. They are needed when typing, watching a video, sending a message.
- Instrumental. Helping programmers create new types of programs.
Nowadays there are many types of computers. The most common are personal ones. They are in almost every home in the form of stationary or portable devices. A stationary computer consists of separate interconnected units. Portable has the name of a laptop and is a device where all parts are connected into one. For any type, you can attach additional external parts.