The hardware is based on hardware, software needs to be activated by the control system hardware, and make coordination between the various hardware work on the basis of the system software on the user. User control of the system software. And install the appropriate software on the basis of the system software to complete the work required by the user. So the bottom is the hardware, the hardware layer is the system software, system software layer is the application software. The uppermost layer is the user.
Binary: Binary calculation technique is widely used, the number of system types. 19th century Ireland logician George Boole thought process of logical propositions is transformed into the symbol "0", "1" is some kind of algebraic calculus, every band is, B hex binary system. 0,1 is the basic operators. Because it uses only two numbers 0, 1 symbols, very simple and convenient, easy to implement electronically.
Computer name for the computer, is calculated for a high-speed modern electronic calculators, numerical calculations may be performed, but also calculation logic, and memory storage. Is a modern intelligent electronic devices capable of running in accordance with the automatic, high-speed processing of massive data.
(1) hardware system there are five major components: computing, controller, memory, input devices, output devices.
(2) operator: is responsible for arithmetic and logical operations. And controller together form the central processing unit (cpu)
(3) Controller: is responsible for sending and receiving commands.
(4) Memory: is used to store a program in progress, the program and the data to be processed the data immediately.
(5) The input device: the device is used for input. Such as a keyboard, scanner or the like.
(6) an output device: the device is used for output. Such as a display, speakers and the like.
Software program in order to complete a particular job and development.
Motherboard: motherboard generally rectangular circuit board above the main circuit composed of a computer system is installed, generally bios chip, i / o controller chip, and a key panel control switch interface lamp connectors, expansion slots, the motherboard card original DC power supply connectors like.
1. System Software: System software refers to the control and coordination of computers and peripheral equipment to support application development and operation of the system, is a collection of programs without user intervention, the main function is scheduling, monitoring and maintenance of computer systems; manage computer system in a variety of independent hardware so that they can coordinate their work. System software allows computer users and other software to the computer as a whole without the need to take into account the underlying hardware is how each works. How software works.
System Software example: windows, xp, windows, 7, windows8, windows10, android (Andrews phone system), unix, linux and so on.
(2) application software, for example: iQIYI video, Storm video, qq, office and so on.