Asystem in which human and mechanical components operate together to perform a task is known as total operating systems man-machine systems person-machine systems complete operating systems (cos)

Ineed on my history if anyone can check out the last few questions i posted and i will be posting !

Which of the following “invisible” marks represents an inserted tab?

Arecipients list has been loaded into a document. which commands should be clicked in order to filter the list so that letters will not be printed for recipients who live in a certain state? mailings tab, start mail merge, select recipients, type new list, then insert only contacts from the desired states mailings tab, rules, select recipients, use existing list, then choose a recipients list that includes only contacts in certain states mailings tab, select recipients, use existing list, rules, fill in, then type in certain states mailings tab, rules, skip record select “state” under field name, then type in the state name under “equal to”