Computing and data processing
George Penney · Education + Training · 1976
Wherever there is a substantial volume of facts or figures to be processed, there you will find a computer. It may be, for instance, despatches to be valued, invoices to be produced, medical statistics to be analysed, stress calculations to be performed, or weather maps to be constructed. Whatever process a computer is used for, or whatever the variety of tasks done by any given machine, essentially four different types of human job need to be carried out: