On his computer desktop, Rodney can see several different files, each immediately accessible. Because he is actively working on them and can open them whenever he wants, these files are in fact very similar to the kind of information held in memory.

computer literacy

explanation:

given the options, i would say your best bet is c. the modem supports up to 56 kbps, which is too low for video streaming. dial up modems use actual phone lines, which only can go up to 56 kbps as that's more than sufficient for traditional phone calls. this is also the reason why when a dial-up modem connects, you hear all those sounds. it's literally using the phone line to establish a connection.