What Computers can do

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  The actual tasks that a computer is capable of performing can be divided into three categories:

  Arithmetic Operations

  Add, Subtract, Multiply, Divide

  Conditionals - Comparisons or Logical's

  Which has a larger, smaller or equal value.
  AND - both needed, OR - either one, NOT - neither

  Storage and Retrieval

  Obviously the large Hard Disk that is on the modern systems is for holding or storing data (information). Retrieval will be from this same device. In addition to the Hard Disk we have CD-ROMs and DVDs. And there is also the formidable floppy disk.

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  The computer is particularly useful because of its ability to perform tasks with a high degree of speed and, for the most part, accurately.

Their Limitations

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  Limitations?? Ah yes, they are limited. Since they were created by men they have a lot of man's deficiencies. After all, everything that can be done on a computer can be done by a person. The person may be a little slower but they could still do it. The computer does have some advantages though. It doesn't have to sleep, eat, comfort a wife or play with children. Therefore, it can do things faster and without a lot of distractions. But, since humans designed and built them ... perhaps while having a bad day ... they sometimes make mistakes. And they do those faster also.
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  Some things to keep in mind. When you work on a computer you are 9 times out of ten, doing something that you have done before, only manually. Probably with pencil and paper. Now you are doing it on a computer and not necessarily they way you had done it before. YOU ARE NOT DUMB IF YOU DON'T UNDERSTAND. This is what makes computers hard. You are used to doing something one way and now you have to do it another way. You have to change your thinking to someone else's. And there are so many ways to do the same thing.