Illustrate about the macros and give its example

For instance, assume you want some data to be input into a spreadsheet if result of a calculation in cell K40 is negative:

move to cell K40

            is result of calculation < 0

            if < 0 then load file "error report"

            if >= 0 then output value

Macros can be very sophisticated and save operator a lot of time. For instance, name and address in a word processor could be set up by pressing key F1 and system brings information from a related database.