________ memory is available for some smartphones to expand the storage capacity

Information that will display at the bottom of each page in Excel is called the ________

A) header B) footer C) margin D) heading

Test-and-set is a single indivisible machine instruction. In a single machine cycle, it tests to see if a key is available and, if it is, sets it to unavailable.

Answer the following statement true (T) or false (F)