* Mainframe
- first type of computer used by government and businesses
- multiple tasks for many users simultaneously
- Large corporations
- Climate controlled rooms
- Hook-up to it through personal computer
- Examples government agencies accessing social security numbers/info
- National car rental company access info on anytime/where you have ever rented a car
- Credit card companies customer service
* Supercomputer
- Processes trillions of calculations per second
- Weather forecasting
- Crash testing
- Special effects in movies
- $100 million
- Why do people spend this much on a computer? save lives or will make more than it cost
* Minicomputers
- Popular in the 70 and 80
- Small to medium size companies
- Schools and small office companies (less than 100 people)
- Less than $100,000
- Now that PCs are so powerful, these are becoming OBSO.
* Personal Computers
- Exploded in the early 80
- Cost is always decreasing
- Use to have a lot of types now Apple and IBM compatible (Apple good for media)
- Rapid processing and relatively low cost
- Scientist, graphics, financial analyst, architects
- $2000-$9000
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