Which of the following is not harmful to the computer?
a) Trojan
b) Rootkit
c)Malware

What operating system is a smartphone most likely to use? 1.bsd 2.mac os x 3.symbian 4.linux

Idon understand these and need some ! ?

Alex’s family members live in different parts of the world. they would like to discuss the wedding plans of one of their distant relatives. however, alex wants all the family members to talk to each other simultaneously so that they can make decisions quickly. which mode of internet communication should they use? a. blog b. email c. wiki d. message board e. instant messaging