Computing by Abbie Slater https://padlet.com/2abbieslater/px0efvvo2ghj en-us 2019-01-28 08:29:17 UTC 2019-01-28 08:41:41 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Terminator.png Basic Computer System model 2abbieslater https://padlet.com/2abbieslater/px0efvvo2ghj/wish/324816425 A computer system ts made up of hardware and software. Hardware is any physical component
that makes up the computer. Software is any program that runs on the computer.]]> 2019-01-28 08:34:58 UTC https://padlet.com/2abbieslater/px0efvvo2ghj/wish/324816425 Bryan is building a desktop computer system using various pieces of hardware. He purchases a dual-core CPU which features Von Neumann architecture. 2jasonmarsh https://padlet.com/2abbieslater/px0efvvo2ghj/wish/324817195
(a) State one characteristic of Von Neumann architecture. 

(b) Explain, with reference to memory and specific registers, 
the steps of the CPU fetch-execute cycle. 


(c) Bryan's computer system will have both RAM and ROM. 
Explain two differences between RAM and ROM. 


(d) Bryan's CPU has 64 kB of Level 1 cache memory and 1 MB of Level 2 cache 
memory. State one difference, other than size, between Level 1 and Level 2 cache memory. 


(e) Describe how the Arithmetic Logic Unit (ALU) and the Accumulator 
work together in the CPU. 


(f) When Bryan finishes building his computer, he notices that it is quite slow, 
so he upgrades the CPU to one that is quad-core. Explain why doubling the number of cores will not necessarily double the performance of his system. 


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