The higher versions of the operating systems are so written that programs designed for earlier versions can still be run. What is it called?

A Upgradability
B Upward mobility
C Universality
D Upward compatibility
E None of the above

Correct Answer: Upward compatibility

Refers to software that runs not only on the computer for which it was designed, but also on newer and more powerful models. For example, a program designed to run on an Intel 386 microprocessor, which also runs on a Pentium, is upward compatible. Upward compatibility is important because it means you can move to a newer, larger, and more sophisticated computer without converting your data.
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One of the biggest threats to a company’s porductivity is absenteeism. Student show that companies with in-house child-care programs see fewer absences among their employees who are parents than companies without such programs. Therefore, many companies could boost their productivity by starting in-house child-care programs. Which of the followings, if true, most weakens the above argument?
A In-house child-care programs create distractions for nonparents that can harm their productivity.
B Absenteeism is not a serious problem for companies that impose harsh penalties on employees who miss work.
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Many companies now have employee assistance programs that enable employees, free of charge, to improve their physical fitness, reduce stress, and learn ways to stop smoking. These programs increase worker productivity, reduce absenteeism and lessen insura
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B Absenteeism is not a serious problem for companies that impose harsh penalties on employees who miss work.
C Productivity is not an important issue for the companies.
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A I and II
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C II and III
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B Linux
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