Day 01 jobs
1. What is the programming language
Python and Chinese, English, are a language, as long as the language is, in fact, can be seen as a thing of communication with the media is another thing. Python belong programming language programming language is communication between programmers and computer media.
2 What is the program
Programming means: programmer using a programming language syntax will want to make their own mind in the computer to do, written to a file. So the result is programming a bunch of files, this program is a bunch of files.
3. Why programming
The purpose of the program is intended to make full use of the computer, the computer is a highly effective tool that allows a computer to help humans work and thus replace manpower.
Five computers were part 4. What is the role?
4.1 Controller
Central nervous entire computer, which functions to control the program information interpreted predetermined controlled according to their requirements, scheduling programs, data, address, and the coordinating computer memory and peripheral part of the work and other access.
4.2 operator
Operator function is various data arithmetic and logical operations, i.e. the data processing.
4.3 Memory
Function of the memory information is to store programs, data and all kinds of signals, commands, etc., and provide this information when needed.
4.4 Input Device
The input device is an important part of the computer, input devices and output devices to satisfy your data and other information for the role of external devices, referred to as a peripheral input device is the program, the raw data, text, character, or control commands to the scene gathering input computer. Common input devices have a keyboard, mouse, optical input, tape drives, disk drives, CD-ROM machines.
4.5 Output Device
Output devices and input devices are also an important part of the computer, the external computer which intermediate results or the final result of the machine, outputting information including various data or various control symbols and text signals out of the machine.
5. works machinery and equipment
Mechanical hard disk (HDD) and solid state drives (SSD) of the points. A traditional mechanical hard disk that is a normal hard disk, mainly by: some part of the disk, the head, and the disk spindle motor control, the head controller, data converters, interfaces, buffers and other components.
Moving the magnetic head along a radial direction of the disk, the disk plus several thousand revolutions per minute high-speed rotation, the head can be positioned at a predetermined position on the disk to read and write data. Information from the close to the surface of the magnetic head, the magnetic polarities changing the flow stream is written on the magnetic disk, the information can be read by a reverse manner. A hard disk as a precision device, which the enemy is dust, the air must be filtered into the hard disk.
6. qq start the process?
- Double-click the windows desktop qq icon (shortcut qq.exe corresponding path)
- Double-click the icon that sends instructions to the operating system, so that the operating system starts qq software corresponding path.
- Operating system receives an instruction to send commands to the memory control CPU.
- After accepting an instruction memory to send instructions to the hard disk, the hard disk memory to the software code read qq, QQ start