Computer name for the computer, a high-speed modern electronic calculator may calculate a numerical calculation and logic calculation may be performed, as well as storage memory. It is able to follow the program is running, the automatic, high-speed data-intensive modern intelligent electronic devices
Computing a binary number system is a kind of widely used technique. 19th century Ireland logicians Qiaozhi Bu of thought process into some kind of logical propositions of algebraic calculus the symbol "0" to "1", the band is every bit 2 into the binary system. 0,1 two number sign, very simple and convenient, easy to implement electronically
Hardware system there are five major components: computing, controller, storage, input devices, output devices.
Operator: is responsible for arithmetic and logic operations. And controller together form the central processor
Controller: is responsible for sending and receiving instructions
Storage:? It is being used to store the program data of the program to be performed and the data is immediately processed
Input device: the device is used for input. Such as a keyboard, scanner, etc.
Output device: the device is used for output. Such as a display, speakers, etc.
Motherboard: motherboard generally rectangular circuit board above the main circuit composed of a computer system installed generally BTOS chip, I / O control chip, and the key panel control switch interface lamp connectors, expansion slots, and the host card DC power supply connector element and the like
Software for a particular job done and development program
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 to monitor and maintain the scheduling computer system is responsible for managing a variety of computer systems 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 working system software, for example windowxp.window7.window8.window10.android.lOS uxix Linux, etc.
Applications examples: iQIYI video, STORM, QQ, office, etc.
The hardware is based on the hardware needed to start the system hardware through software control, and allow mutual coordination between all the hardware work, on the basis of the system software on the user, the user's control system software and install the appropriate application software system based on software to complete the work required by the user. So that is the bottom layer is the hardware on the system software, application software and system software layer of the upper layer is the most user