The correct answer is: B. They have been most successful in the home.
Personal computers have been most successful in the home. They have been used for a variety of tasks, including word processing, spreadsheets, games, and internet browsing. They have also been used for education, business, and entertainment.
Personal computers have had a significant impact on society. They have made it possible for people to communicate with each other more easily, to access information more quickly, and to work from home. They have also made it possible for people to learn new things and to be entertained.
Personal computers have also had a significant impact on the economy. They have created new jobs, and they have made it possible for businesses to operate more efficiently. They have also made it possible for people to shop online, which has led to the growth of e-commerce.
Personal computers are still evolving, and they are becoming more powerful and more affordable. They are also becoming more portable, and they are being used in a variety of new ways.
Here is a brief explanation of each option:
- A. They decrease the demand for mainframe computers. This is not true. Personal computers have increased the demand for mainframe computers. Mainframe computers are used for large-scale tasks, such as data processing and scientific computing. Personal computers are not powerful enough to handle these tasks, so mainframe computers are still needed.
- B. They have been most successful in the home. This is true. Personal computers have been most successful in the home. They have been used for a variety of tasks, including word processing, spreadsheets, games, and internet browsing. They have also been used for education, business, and entertainment.
- C. The electronic spreadsheet has been a primary reason for their popularity. This is not true. The electronic spreadsheet was not the primary reason for the popularity of personal computers. Personal computers were popular because they were affordable, easy to use, and versatile.
- D. Their future is not so bright owning to the improved cost-performance ratio of minis and mainframes. This is not true. The future of personal computers is bright. They are becoming more powerful and more affordable, and they are being used in a variety of new ways.
- E. None of the above. This is not true. Option B is the correct answer.