Numbers could also be represented in the form of digits, automatically manipulated by a mechanism. distance along a scale, rotation of a shaft, or a voltage). Later, computers represented numbers in a continuous form (e.g. The first aids to computation were purely mechanical devices which required the operator to set up the initial values of an elementary arithmetic operation, then manipulate the device to obtain the result. The machine operator was called the computer. Early mechanical tools to help humans with digital calculations, like the abacus, were referred to as calculating machines or calculators (and other proprietary names). Before the 20th century, most calculations were done by humans. ![]() The history of computing hardware covers the developments from early simple devices to aid calculation to modern day computers. From left to right: ENIAC board, EDVAC board, ORDVAC board, and BRLESC-I board, showing the trend toward miniaturization.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |