The Input-Output Tables developed by Dr. Leontief (b. 1906 in Russia, d. 1999), a U.S. Nobel laureate economist, are widely recognized for their usefulness and importance in the analysis of ...

Output devices: In the world of computers, output devices play a vital role in helping users receive information from the system. While input devices allow users to give commands and data to the ...

The input-output system of a computer consists of the programs and devices that allow the machine and its user to communicate. Recently graphical devices for this purpose have evolved rapidly ...