Cpu
- 1. SYSTEM UNIT CENTRAL PROCESSING UNIT
- 2. CPU 1ST MICRO PROCESSO R DIFFERENT MICROPR OCESSORS PARTS OF CPU PARTS OF SYSTEM UNIT PARTS OF CPU IN DETAIL DESCRIPTION WITH DIAGRAM WE ARE GOING TO TALK ABOUT
- 3. On large machines, the CPU requires one or more printed circuit boards. On personal and small workstations, the CPU is housed in a single chip called a microprocessor. Since the 1970's the microprocessor class of CPUs has almost completely overtaken all other CPU implementations. The CPU itself is an internal component of the computer. Modern CPUs are small and square and contain multiple metallic connectors or pins on the underside. The CPU is inserted directly into a CPU socket, pin side down, on the motherboard. Each motherboard will support only a specific type (or range) of CPU, so you must check the motherboard manufacturer's specifications before attempting to replace or upgrade a CPU in your computer. Modern CPUs also have an attached heat sink and small fan that go directly on top of the CPU to help dissipate heat. CPU
- 4. Four decades ago from today — November 15, 1971 — Intel placed an advertisement for the first single-chip CPU, the Intel 4004, in electronic news. Designed by the fantastically-forenamed Federico Faggin, Ted Hoff, and Stanley Mazor, the 4004 was a 4-bit, 16-pin microprocessor that operated at a mighty 740khz — and at roughly eight clock cycles per instruction cycle (fetch, decode, execute), that means the chip was capable of executing up to 92,600 instructions per second. We can’t find the original list price, but one source indicates that it costs around $5 to manufacture, or $26 in today's cost THE FIRST MICROPROCESSOR
- 7. INTEL QUAD CORE MICROPROCESSOR INTEL DUAL CORE MICROPROCESSOR
- 9. Intel Pentium Dual Core Processors The Intel Pentium processors with Intel dual-core technology deliver great desktop performance, low power enhancements, and multitasking for everyday computing. Intel Dual Core i3 Processors Intel Core i3 dual core processors provide 4-way multitasking capability with built-in performance headroom for software upgrades. Intel Dual Core i5 Processors Intel Core i5 processors deliver the next level of productivity. With Intel Turbo Boost Technology this quad-core processor with 4-way multitasking capability delivers extra speed whenever we need. Intel Dual Core i7 Processors The Intel Core i7 processors deliver best-in-class performance for the most demanding applications. This quad-core processor features 8-way multitasking capability and additional L3 cache.
- 10. Two typical components of a CPU are the following: 1.The Arithmetic Logic Unit (ALU), which performs arithmetic and logical operations. 2.The Control Unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary. PARTS OF CPU (A BREIF DESCRIPTION)
- 11. PARTS OF SYSTEM UNIT AND THEIR FUNCTIONS • Motherboard – The motherboard is the main circuit board of a microcomputer. It is also known as the mainboard or system board. • CPU – The CPU is the central electronic chip that determines the processing power of the computer. • Memory – Memory is the part of the computer that temporarily stores applications, documents, and stem operating information. • Bus – A bus is an electronic line that allows 1s and 0s to move from one place to another. • Expansion Slots – Expansions slots appear on the motherboard. They are sockets into which adapters are connected.
- 12. • Ports and Connectors – A port is a connector located on the motherboard or on a separate adapter. • Bays – A bay is a space inside the computer case where a hard drive, floppy drive or CD-ROM drive sits • Power Supply – A power supply changes normal household electricity into electricity that a computer can use. • Sound Components – A sound card lets a computer play and record high quality sound.
- 13. PARTS OF CPU (IN DETAIL)
- 14. CONTROL UNIT ( CU ) • The control unit coordinates the components of a computer system. It fetches the code of all of the instructions in the program. It directs the operation of the other units by providing timing and control signals. All computer resources are managed by the CU. It directs the flow of data between the Central Processing Unit (CPU) and the other devices. • The control unit was historically defined as one distinct part of the 1946 reference model of Von Neumann architecture. In modern computer designs, the control unit is typically an internal part of the CPU with its overall role and operation unchanged. • The control unit is the circuitry that controls the flow of data through the processor, and coordinates the activities of the other units within it. In a way, it is the "brain within the brain", as it controls what happens inside the processor, which in turn controls the rest of the computer. The examples of devices that require a control unit are CPUs and graphics processing units (GPUs). The control unit receives external instructions or commands which it converts into a sequence of control signals that the control unit applies to the data path to implement a sequence of register-transfer level operations.
- 15. ARITHMETIC LOGIC UNIT • In computing, an arithmetic and logic unit (ALU) is a digital circuit that performs integer arithmetic and logical operations. The ALU is a fundamental building block of the central processing unit of a computer, and even the simplest microprocessors contain one for purposes such as maintaining timers. The processors found inside modern CPUs and graphics processing units (GPUs) accommodate very powerful and very complex ALUs; a single component may contain a number of ALUs. • Mathematician John von Neumann proposed the ALU concept in 1945, when he wrote a report on the foundations for a new computer called theEDVAC. Research into ALUs remains as an important part of computer science, falling under Arithmetic and logic structures in the ACM Computing Classification System.
- 16. • Arithmetic and Logic Unit • Schematic Symbol
- 18. 1. CPU LOADS THE INSTRUCTIONS FROM MAIN MEMORY TO COMMITED INFORMATION RATE(CIR) 2. INSTRUCTIONS ARE INTERPRETED OR COMPILED 3. INSTRUCTIONS ARE EXECUTED & CPU PERFORMS REQUIRED ACTIONS & CALCULATIONS 4. ALL GENERATED RESULTS ARE STORED IN THE MAIN MEMORY
- 19. MADE BY : THE STUDENTS OF CLASS 9TH-A •Khadija Amjad •Nawal •Hafsa Zaman • Rabia Idrees Date: 10th June , 2013