A computer actually is an electronic device capable of interpreting and executing programmed commands for input, processing, output and even the logical operations. And I would like to introduce the evolution of computer, and then talk about the generations of it. During the ancient period, "Abacus" was probably the original mechanical counting device, and its effectiveness has withstood the test of time. Undoubtedly, it is still used to illustrate the principles of counting. Once again, …showed first 75 words of 928 total…

…showed last 75 words of 928 total…sixth generation will be the explosive growth of wide area networking. Network bandwidth has expanded tremendously in the last few years and will continue to improve for the next several years. T1 transmission rates are now standard for regional networks, and the national ``backbone'' that interconnects regional networks uses T3. Bibliography: 1) Meyers, Jeremy, "A Short History of the Computer" [Online] Available http://www.softlord.com/comp/ 2) http://www.thocp.net/ 3) http://www.computerhistory.org/timeline/