Processing The History of Computing London Grid for

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Processing The History of Computing © London Grid for Learning www. HOC. lgfl. net

Processing The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

Where would you find the processor? The History of Computing © London Grid for

Where would you find the processor? The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

Where would you find the processor? underneath the heatsink The History of Computing ©

Where would you find the processor? underneath the heatsink The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

Where would you find the processor? Play: Inside of a computer Video The History

Where would you find the processor? Play: Inside of a computer Video The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

How do processors work? A processor is a bit like a calculator but instead

How do processors work? A processor is a bit like a calculator but instead of having numbers 1 through 9 to calculate it only uses the numbers 0 and 1. 0 1 This is called binary. It may sound silly but if you only have the numbers 0 and 1 you can actually calculate much faster! The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

Transistors All processors are made out of transistors Transistors are switches (on or off)

Transistors All processors are made out of transistors Transistors are switches (on or off) A modern processor has hundreds of millions of transistors meaning it can calculate instructions quicker. The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

Moore's Law Computer processing doubling every few years. • • Playstation 1 (1994) =

Moore's Law Computer processing doubling every few years. • • Playstation 1 (1994) = 115 thousand transistors Playstation 3 (2006) = 241 million transistors Over 2 thousand times more in 12 years! The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

How do processors work? FETCH EXECUTE The History of Computing © London Grid for

How do processors work? FETCH EXECUTE The History of Computing © London Grid for Learning www. HOC. lgfl. net DECODE Lesson 4 - Processing

Modern PC Historical Computer __________ Clock Speed Number of transistors Size Power consumption Cache

Modern PC Historical Computer __________ Clock Speed Number of transistors Size Power consumption Cache Cost (extension task for high ability as this info might be difficult to research) Clock Speed - GHZ, which means how many billion (1, 000, 000) instructions can take place in a second. The History of Computing © London Grid for Learning www. HOC. lgfl. net Lesson 4 - Processing

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