Lesson 8 CPUs Used in Personal Computers.

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Presentation transcript:

lesson 8 CPUs Used in Personal Computers

This lesson introduces: Intel Processors AMD Processors Cyrix Processors Motorola Processors RISC Processors

CPUs Used in Personal Computers – Intel Processors Since 1978, Intel's processors have evolved from the 8086 and the 8088 to the 80286, 80386, and 80486, to the Pentium family of processors. All are part of the 80x86 line. Intel's Pentium family of processors includes the Pentium, Pentium Pro, Pentium with MMX, Pentium II, Pentium III, Celeron, and Xeon processors. The earliest Intel processors included only a few thousand transistors. Today's Pentium processors include 9.5 million transistors or more.

Intel’s Pentium III processor

CPUs Used in Personal Computers – AMD Processors Advanced Micro Devices (AMD) was long known as a provider of lower-performance processors for use in low-cost computers. With its K6 line of processors, AMD challenged Intel's processors in terms of both price and performance. With the K6-III processor, AMD broke the 600 MHz barrier, claiming the "fastest processor" title for the first time in IBM-compatible computers.

The AMD K6-III processor

CPUs Used in Personal Computers - Cyrix Processors Cyrix began as a specialty chip maker, but eventually began producing microprocessors. Cyrix processors are most commonly used in low-price, low-end consumer PCs. Cyrix formerly produced the MediaGX processor, and now produces the MII series of processors.

The Cyrix Processor

CPUs Used in Personal Computers – Motorola Processors Motorola makes the CPUs used in Macintosh and PowerPC computers. Macintosh processors use a different basic structural design (architecture) than IBM-compatible PC processors. With the release of the G3 and G4 PowerPC processors, Macintosh computers set new standards for price and performance.

Apple’s G4 computers are based on Motorola processors

CPUs Used in Personal Computers - RISC Processors Most PCs are based on complex instruction set computing (CISC) chips which contain large instruction sets. Reduced instruction set computing (RISC) processors use smaller instruction sets. This enables them to process more instructions per second than (CISC) chips. RISC processors are found in Apple's PowerPC systems, as well as many H/PCs, workstations, minicomputers, and mainframes.

Compaq’s AlphaServer computers are based on RISC processors

CPUs Used in Personal Computers -Parallel Processing In parallel processing, multiple processors are used in a single system, enabling them to share processing tasks. In a massively parallel processor (MPP) system, many processors are used. Some MPP systems utilize thousands of processors simultaneously.

lesson 8 Review Name the three best-known families of CPUs and list their differences. List all the processors in Intel’s 80x86 line of processors. Identify the key processor families from AMD and Cyrix. Differentiate the processors used in Macintosh and IBM-compatible PCs. Define the terms CISC and RISC. Identify one advantage of using multiple processors in computers.