Computer systems and Hardware
- Created by: Christanina
- Created on: 19-12-16 09:48
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- Computer Systems and Hardware
- What is a computer system?
- A computer system is a machine that takes in inputs, processes the information and then outputs it.
- It consists of hardware (physical parts of the computer) and software (programs run by a computer to run a certain task
- Most computer system use operating systems to run their computers
- Reliable and Robust
- Reliable
- Can do the same task over and over again without crashing and to expect the same result
- For example you would not want to plug in a movie from a USB and realise that the movie is corrupt
- Another example is that if you had a mobile phone app, you would expect the app to do the same thing over and over again in order to do the same task
- Robust
- Robust means that the computer is sturdy in construction
- It should withstand lots of things like it shouldn't overheat much
- Reliable
- Advances in computer technology
- There will be less moving parts
- Computers will be more efficiant
- They will work quicker
- HDD vs SSD
- SSD
- Based on flash technology which is faster because of the lack of moving parts
- Expensive
- Will still work if they are dropped
- Compact
- HDD
- Based on a magnetic spinning disk which takes a while to warm up
- Is relatively cheap for the data it can store
- Could run slower if dropped
- Bulky
- SSD
- What is a computer system?
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