11.   Computers have had a profound effect on our lives.

12.   They are called pseudo-random numbers and most computers have built-in functions which will generate sequences of such numbers.

13.   However, many computers do not have this facility and a procedure to clear to the end of the screen would be useful.

14.   Almost every computer has them.

15.   And Kearney, a Teacher for America participant, said his computer has no printer and his lab sink no running water.

16.   And if that computer has full access to the company network, so does the hacker.

17.   And in this arena, alas, the computer will always have us beat.

18.   And if your computer has enough power to do several tasks at the same time, you can hear the broadcast in the background as you do other chores.

19.   And Rabin insisted that computers would have no problem with the encryption scheme, even with long messages that were sent among a large group of people.

20.   And since each computer has different components, different programs installed too, what would fix one computer might not help on another.