CS100 Lecture 15: Module 1
27 Jan 2019
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Document Summary
Hardware components: the cpu, primary memory and secondary storage, peripherals. Each cpu has its own machine language that is used to give it instructions: make & model. Each manufacturer has different cpu models that will determine the characteristics of the cpu: speed. The speed of a modern cpu is measured in ghz (gigahertz): number of cores. Most modern cpus are a combination of several processors or cores. A quad-core processor has four independent processors built into a single chip. Effectively, a quad-core can do four times as much computation as a single core: power consumption. With mobile devices, power consumption has become very important. The speed and number of cores can affect the power consumption: cache. For now, all you need to know is that a big cache is better. Secondary storage is the long term (permanent) storage of a computer. Examples: hard drives, flash drives, cds and dvds.
