![Page 1: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/1.jpg)
Our Lady of the Rosary College2006-2007 S.2 Computer Literacy
Lesson 9Central Processing Unit
Mr. Ku Heung Chin
![Page 2: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/2.jpg)
Central Processing Unit (CPU) The “brain” of the computer Accepts and executes instructions. Control various devices in the computer system.
![Page 3: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/3.jpg)
3 basic units in CPU
Control Unit– Control all operations.
Arithmetic and Logic Unit (ALU)– Addition, subtraction, decision-making….
Register– Hold temporary data.
![Page 4: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/4.jpg)
Instruction Cycle
1.Fetching 2.Decoding 3.Executing
1
3
2
3
![Page 5: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/5.jpg)
Clock Rate
How many instructions can a CPU runs per second
Unit: cycles per second Hertz (Hz) E.g. 2.4 GHz
2.4*1000*1000*1000
=2400000000 instructions per second.
![Page 6: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/6.jpg)
Intel and AMD Two major companies producing CPUs Intel Corporation vs Advanced Micro Devices, Inc.
![Page 7: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/7.jpg)
Intel vs AMD 1976
– Intel 8086/8088 :5MHz 1982
– AMD became a licensed second-source manufacturer of 8086 and 8088
– Intel 80286 : 6-25 MHz
![Page 8: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/8.jpg)
Intel vs AMD 1986
– Intel: 80386: 16-40 MHz 1990
– Intel : 80486 : 40-100 MHz 1991
– AMD: Am386: 33-40 MHz 1993
– AMD: AM486:40-120MHz
![Page 9: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/9.jpg)
Intel vs AMD 1993
– Intel: Pentium:60-300MHz 1995
– AMD: K5 :75-133MHz 1997
– Intel Pentium II:233-450MHz– AMD: K6:200-300MHz
![Page 10: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/10.jpg)
Intel vs AMD 1999
– Intel : Pentium III:
450MHz-1.4GHz– AMD: Duron and Athlon(K7):
500MHz – 2GHz
![Page 11: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/11.jpg)
Intel vs AMD 2001
– Intel : Pentium 4:
1.3GHz-3.8GHz 2003
– AMD:Athlon64
2.0GHz – 2.4GHz
![Page 12: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/12.jpg)
Intel vs AMD 2006 ( Dual Core CPU)
– Intel: Core 2 (Duo/Quad /Extreme)
– AMD: Athlon64 X2
![Page 13: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/13.jpg)
Intel vs AMD Who wins??
– 2006 second quarter market share:• Intel 73 %
• AMD 22%
• Others 5%
![Page 14: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/14.jpg)
Reminders HW7
– Due next cycle– Download from E-Classroom or Mr. Ku’s
homepage
Quiz (Unit 3 and 4)– Cycle 17 (Starting from 2/3/2007)
![Page 15: Our Lady of the Rosary College 2006-2007 S.2 Computer Literacy](https://reader036.vdocuments.pub/reader036/viewer/2022062518/568144b9550346895db18088/html5/thumbnails/15.jpg)
The EndThanks for coming!!