microprossor.ppt

Unit Six Control technology,Passage One Microprocessor,useful terms of microprocessor Difficult points: use the specialty words to describe microprocessor,Key points:,Requirements:,1. have a good command of the knowledge of microprocessor,2· can use the special terms to describe microprocessor,Leading in-Revision,Talk about CAD & CAM. (choose two groups of students to do it),Leading in-Revision---computer system,Computer System,,Hardware System,Software System,,,system Software,application Software,,peripherals,host,,Central Processing Unit (CPU),Memory,,Secondary Storage(floppy disk; Hard disk; Optical disk ) Input Devices(mouse ;keyboard; Scanner) Output Devices (display, printers),,Control unit,Arithmetic and Logical Unit (ALU),,RAM (Random Access Memory) ROM (Read Only Memory),Leading in-Revision—computer and computer peripheral,motherboard,Hard Disk,CPU,Memory,Leading in-Revision—computer and computer peripheral,,USB Disk Move Disk Easy Disk,,,Floppy Drive CD-ROM,,,Display Keyboard Mouse,,,Network Card Display Card Sound Card,New words and expressions,microprocessor [ maikrəʊ‘prəʊsesə(r) ] n.微处理器 execute[ 'eksikju:t ] v. 执行,实行,完成 interpret[ in'tə:prit ] v. 解释,演出,翻译 code[ kəud ] v. 把.编码decode[ ,di:‘kəud ] v. 解码,译解coder编码器decoder译码器 arithmetic[ ə'riθmətik ] n. 算术 memory[ 'meməri ]n.存储; 存储器 multiply/`mʌltiplai/v. 繁殖,乘,增加 comprise[ kəm'praiz ] v. 包含 chip [ tʃip ]n. 薄片,芯片,What is microprocessor?,The computer’s brain is called mircroprocessor. That’s the main chip in a computer that does all the work. It’s also the center of activity of the motherboard. It interprets and execute the instructions which comprise a computer program.,What is CPU?,CPU is an abbreviation of Central Processing Unit. The CPU consists of an arithmetic unit and its associated circuitry, known as the arithmetic logic unit (ALU), and an instruction counter and decoder. 算术逻辑部件 The CPU can perform only more one operation at a time.,中央处理器,More about CPU,The operations of computer system are controlled by CPU, which can be divided into two functional units called the control unit (CU) and the arithmetic logic unit (ALU). The control unit regulates and controls various operations The ALU is responsible for performing calculations such as addition, subtraction, multiplication, and division.,memory,Essentially , numerically coded instructions are stored in the computer’s high-speed storage, or primary storage Memory: Temporarily stores data so it is immediately available for processing when needed. Retains processed data to be sent to output devices,More about CPU,The CPU takes one instruction at a time and executes it. The numerical coding of the instruction tells the CPU which operation to perform and where the data upon which the operation is take place is stored.,More about microprocessor,The microprocessor is essentially a small calculator. It does basic calculator like thinking-adding, subtracting, multiplying, and dividing values stored in the computer’s memory. Computer programs tell the microprocessor what to do.,Terms for the microprocessor,Other terms for the microprossor include the processor, the Central Processing Unit (CPU) , and the number of the microprocessor, such as the 8088,80286,80386,80486 and so on Instead of calling it a number, the company that manufacture it (Intel) called it the Pentium.,The development of computer,First generation （1946～1957） Vocuum tubes INTEL4004 Second generation（1958 ～1962） transistor INTEL8080,Z80,APPLE Third generation（1963年～1970） Small integrated circuits INTEL8086、INTEL80286,IBMPC／AT Fourth generation (1971~now) Great,super integrated circuits INTEL80386、INTEL80486. Fifth generation—intelligence computer. INTEL,PENTIUM Future ---,classic Pentium processor,How can you tell which microprocessor you PC has?,The best way is to look at the label, which probably has a microprocessor number in it; 386 and 486 are common. And , as a least resort, you can use PC diagnostic software to figure out which microprocessor you have. The latest offspring in the 28 families are the Pentium computers , which would have been called 586 computers. The Pentium is the basically a fast, all-powerful 386.,Homework—translate the following into Chinese,A typical 8051 contains: -CPU with Boolean processor -5 or 6 interrupts: 2 are external, 2 are priority levels -2 or 3 16-bit timer/counters -programmable full-duplex serial port (baud rate is provided by one of the timers) -32 I/O ROM/EPROM in some models,,Thank you,。