Formatting options in the Format Cells dialog box are NOT available for conditional formatting

One of the most important inventions of the 20th Century which subsequently allowed for the rapid increase in types and uses of computers was the:

a. vacuum tube b. ENIAC computer c. transistor d. Mark I

What IP address is used as a loopback address and is not a valid IP address that can be assigned to a network?

A. 128 address B. 127 address C. 224 address D. 255 address