local stores in neighborhood do not have computerized cash registers but they may have cameras if they are in a bad neighborhood. inventory is controlled by checking the shelves.
the Qs about computers, servers and clients are for national chain stores. they use clients at each store which are connected to the central servers at HQ. employees need special training as the system is complicated. the whole system is maintained by their IT department.
The undo function is used to reverse a mistake, such as deleting the wrong word in a sentence. The redo function restores any actions that were previously undone using an undo. ... For example, if you typed a word, and then deleted it using an undo, the redo function would restore the word you delete
What do you mean by redo?
: to do (something) again especially in order to do it better. : to change (something, such as a room or part of a room) so that it looks new or different. See the full definition for redo in the English Language Learners Dictionary.
<em>What is Undo ?</em>
<em>What is Undo ?Undo is an interaction technique which is implemented in many computer programs. It erases the last change done to the document, reverting it to an older state. In some more advanced programs, such as graphic processing, undo will negate the last command done to the file being edited.</em>
The correct answer is..A?
