1, 1971: Intel 4004 microprocessor is introduced, marking the birth of the CPU. 1972 - Intel 8008 microprocessor is released, a pioneer of 8-bit microprocessors. 1974: The Intel 8080 microprocessor is introduced, significantly improving performance over the 8008.2, Intel launched the 80286 chip, it than 8086 and 8088 have a leap forward, although it is still a 16-bit structure, but in the CPU internal integration of 140,000 transistors, the clock frequency from the initial 6MHz gradually increased to 20MHz. 3, CPU from the initial development has been more than 20 years of history, during this period, according to the word length of its processing information, CPU can be divided into 4-bit microprocessor, 8-bit microprocessor, 16-bit microprocessor, 32-bit microprocessor and 64-bit microprocessorApparatus and so on.
4, the 8088 chip was first used in IBM's PC (Personal Computer) machine, creating a new era of microcomputer. It was also from the 8088 that the concept of the PC began to develop around the world. 5, the CPU from the initial development has been more than 20 years of history, during this period, according to the word length of its processing information, the CPU can be divided into: four-bit microprocessor, eight-bit microprocessor, 16-bit microprocessor, thirty-two microprocessor and sixty-four microprocessor and so on.
The world's first microcomputer was a 4-bit computer, born in 1971. On February 14, on the 50th anniversary of the world's first electronic computer, U.S. Vice President Al Gore turned on the machine againComputer, to commemorate the advent of the information age.
Year, by the United States produced the first fully automatic Electronic digital computer "ENIAC" (English abbreviation is ENIAC, that is, Electronic Numerical Integrator and Calculator, Chinese meaning electronic digital integrator and calculator).
1, the microprocessor generally consists of the following components: arithmeticArithmetic Logical Unit (ALU); Accumulator and general register set; Program counter (also called instruction indicator); Timing and control logic components; Data and address latches/buffers; The internal bus. 2, the microprocessor is the core part of the microcomputer, also known as the central processing unit (referred to as the CPU). The microprocessor is mainly composed of two parts of the controller and the arithmetic (and some support circuits) to complete the interpretation and execution of instructions. CPU includes arithmetic logic component, register component and control component.
3, arithmetic device, controller, memory. Functional arithmetic device: When the computer is running, the operation and type of operation of the arithmetic device are determined by the controller. The data processed by the computer comes from the memory; The result data after processing is usually sent back to the memory, or temporarily stored in the computer.
4, the microprocessor usually consists of three main parts, they are the arithmetic, the controller and the register. Arithmetic unit is one of the core parts of microprocessor. It is responsible for performing arithmetic operations (such as addition, subtraction, multiplication, and division) and logical operations (such as and, or, not, xOR, etc.).
3, the execution result of the microcomputer is very accurate, and the processing speed is much faster than the ordinary computer, so the discovery of the microcomputer is of great value to usThe computer industry has a lot of impact.
4, the first stage is 1971 ~ 1973, the microprocessor has 4004040, 8008. In 1971, Intel Corporation developed the MCS4 microcomputer (CPU 4040, four-bit machine). Later, MCS-8 with 8008 as the core was introduced. The second stage was from 1973 to 1977, the development and improvement of microcomputers.
1,A microcomputer usually consists of five parts: a controller, an operator, a memory, an input device, and an output device. A microcomputer usually has a controller, arithmetic unit, memory, input device and output device. It consists of five parts.
2, the microcomputer is mainly composed of the following parts: Main box: the main box of the microcomputer usually contains the central processing unit (CPU), memory, motherboard, power supply and other main components.
3, arithmetic device: can complete arithmetic operations and logical operations of the device, the main role is to complete a variety of arithmetic operations, logical operations and logical judgment workDo. Controller: It is a device that stipulates the order of the computer's execution of instructions and coordinates the work of various components, and its main role is to control and coordinate the orderly work of multiple hardware parts of the computer.
4, the hardware of the microcomputer is mainly composed of a microprocessor, memory, I/O interface and external devices, which are connected by the system bus. The system bus is a public wire that transmits information, and there are generally three groups of buses. The address bus AB is a unidirectional bus that transmits the address information sent by the CPU.
5, composed of large-scale integrated circuits, small electronic computers. By the microprocessor (coreCore), memory piece, input and output piece, system bus, etc. It is characterized by small size, large flexibility, cheap price and easy to use.
1, in the microcomputer, the operator and the controller are done on the same semiconductor chip, which constitutes the core of the computer, called the central processor.
2. CalculateThe computing device, controller and internal memory of the machine are collectively referred to as the central processor, CPU. The CentralProcessingUnit (CPU) is a large scale integrated circuit that is the computing Core and ControlUnit of a computer.
3, the arithmetic device, controller and register together called the central processor, referred to as the cpu. Arithmetic unit, also known as computing logic unit, is a component for counting operations and logical operations. The controller is to control and direct the work of various components of the computer, and to input and output devicesMonitor and make the computer execute the program automatically.
4, the Central Processing Unit is the abbreviation of the English "central Processing unit", that is, the CPU, the CPU is generally composed of logical computing unit, control unit and storage unit.
5, the CPU is composed of a controller, arithmetic and registers, usually concentrated on a chip, is the core equipment of the computer system. The computer is centered on the CPU, and the data transmission and processing between the input and output devices and the memory are controlled by the CPU. The central processing unit of a microcomputerIs a microprocessor.