Documents Evolu

1. Evolution ofComputers 2. The AbacusIt was the earliestcalculating machineprobably originatedin China about3,000 years ago.In China it is alsoknown as SwanPan. 3.…

Technology International Journal of Engineering Research and Development

1. International Journal of Engineering Research and Developmente-ISSN: 2278-067X, p-ISSN: 2278-800X, www.ijerd.comVolume 10, Issue 9 (September 2014), PP.60-73Tunable Slit…