The results of computation are made available to the user via the output unit. These include:
(i) Visual Display Unit (VDU)
(ii) Teletypewriter
(iii) Magnetic disk
(iv) Tape drives
(v) Printers
(vi) Plotters
(vii) Card punches
(viii) Spellers
Note also that the digital form from input can be converted to analogue form, hence the need for digital to Analogue converters.