Choose the correct expression:
A computer has four main functions: input, processing, storage and output. Input 1)
include the keyboard and the mouse. They are 2)
entering the data and giving commands to the computer. The processing of the data is carried out 3)
the CPU (Central Processing Unit.) The 4)
of the internal memory is to 5)
programs and data. In addition to the internal memory, there are external storage 6)
such as USB flash drives. They are 7)
of storing additional memory. The last 8)
facilities of the system is the output. The monitor or printer 9)
the operator to see the results of the processor operations.
