By following the links below you can get further information on each type of computer category. By far the largest single group of people dealing with computers consists of those who use them to perform various tasks. These are the people who will purchase and use commercial programs such as word processors, spreadsheets, database managers, accounting programs, and many others. Such programs are packaged and available for sale. They must be installed on the computer, but then can be called up and run by any user.
Some people start out wanting to do more with a computer than just running existing programs.
Others are users who find it necessary or desirable to create a needed application that does not yet exist. And many users want to be able to automate processes they have to go through regularly. All such activities require the development of a new program for the computer. Such a program can be very simple or extremely complex, but it always has several elements in common with all other programs. Computer Technicians and Service People Computers are machines, and any machine can break.