Two students have developed a protocol in which they send 4-bit messages to each other. they decide to modify their protocol to start sending 8-bit messages instead. how many more values can be represented in an 8-bit message than a 4-bit message?

The forerunner to cell phones, pdas, and smartphones was

Which of the following is not a source of sustainable raw materials? a) coal mine b) flick of sheep c) cotton plantation d) line forest.

Rafael needs to add a title row to a table that he has inserted in word. what should he do? use the alignment options. use the merge and center option for all the cells in the top row. use the merge and center option on the first two cells in the top row. none of the above