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Today, computer companies sell many different programs for computers. First, there are programs ___(1)___ doing math problems. Second, there are programs for scientific studies. Third, some programs are like fancy typewriters. ___(2)___ are often used by writers and business people. Other programs are made for ___(3)___ in schools and universities. And finally, there are programs for fun. They include word games and puzzles for children and adults.
There is a wide ___(4)___ of wonderful new computer programs, but there are other reasons to like computers. Some people like the way computers hum and sing when they are working. It is a happy sound, like the sounds of toy and childhood. Computers also have lights and pretty pictures. And computers even seem to have personalities. That may sound strange, but computers seem to have feelings. Sometimes they seem happy, sometimes they seem angry. It is easy ___(5)___ they are like people.