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T111

T111. Week 3 – The CPU. The CPU (Central Processing Unit). The ‘brain’ of the computer Executes pre-programmed instructions – can’t think for itself! Only understands Ones and Zeros or ‘On / Off’. Interesting CPU Facts.

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T111

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  1. T111 Week 3 – The CPU

  2. The CPU (Central Processing Unit) • The ‘brain’ of the computer • Executes pre-programmed instructions – can’t think for itself! • Only understands Ones and Zeros or ‘On / Off’

  3. Interesting CPU Facts • Thermal power loss of modern processors reach 125 watts per cm square which then produce heat. Meanwhile, heating plate electric stoves generally range between 7 and 10 watts per cm square. • The original transistor built by Bell Labs in 1947 was large enough that it was pieced together by hand. By contrast, more than 60 million 32nm transistors could fit onto the head of a pin. • A 32nm transistor contains gates that are so small, you could fit 3,000 of them across the width of a human hair. • A 32nm transistor can switch on and off over 300 billion times in one second. It would take you 4000 years to flick a light switch on and off that many times. - http://www.techspot.com/guides/251-how-small-is-32nm/

  4. Intel & AMD • Intel • 8086 • Pentium 1 • Pentium 2 • Pentium 3 • Pentium 4 • Celeron • Core 2 • Core i3 • Core i5 • Core i7 • Atom • Xeon • Itanium • AMD • AM386 • AMD K5 • AMD K6 • Athlon • Duron • Athlon XP • Athlon 64 • Athlon 64 X2, X3, X4 • Operon • Phenom • Phenom II • Fusion

  5. Multi-Core CPUs • What is a dual / quad core CPU? • Why have more than one core? • Multi-core performance

  6. CPU Performance • How is performance measured? • Benchmarks • Specs • Are there different types of performance? • Office applications • Servers • Gaming • Multimedia • Rendering • Data processing

  7. Game(Crisis) Winzip 11 www.tomshardware.com

  8. CPU Price

  9. Price vs Performance • http://pcpartcharts.com/filters.php?selection=rating&order=desc&display=rating&maxprice=999999&minprice=0&maxrating=999999&minrating=0&highlight=none&highlight1=none&highlight2=none&highlight3=none

  10. CPU Power Consumption

  11. CPU Power Consumption

  12. Exercise Price • CPU • Price • Performance • Efficiency Home PC Business PC Multimedia Editing PC Laptop PC Server Cell Phone Performance Efficiency

  13. Inside the CPU Source: www.tomshardware.com

  14. Inside the CPU • AMD Video

  15. The Little Man Computer (LMC)

  16. LMC Operation • he looks at the number on the program counter (PC) and he then looks at the piece of paper from the corresponding mailbox number. For example, if the PC has the number 22, then the little man looks at the contents of mailbox 22. • he presses the button on the program counter (to increment it). • he interprets the number on the paper as an instruction (see below) and carries out the instruction. Fetch - Increment - Execute

  17. LMC Operation

  18. LMC Operation

  19. Examples Command 321 Command 587

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