James reports that his workstation is very sluggish today. When Sylvia the tech explores the computer, she notices a ton of background programs running, many of which she doesn’t recognize. James comments that one of the users of the computer added a program downloaded from the Internet recently. What’s most likely the problem?

Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. thus your code should put 11 + 22 + 33 + + 4949 + 50*50 into total. use no variables other than k and total.

This chapter lists many ways in which becoming computer literate is beneficial. think about what your life will be like once you’re started in your career. what areas of computing will be most important for you to understand? how would an understanding of computer hardware and software you in working from home, working with groups in other countries and contributing your talents.

Into what form does the barcode reader convert individual bar patterns?