The steps of technological differences are called generations. In 1941 German had developed a computer named Z3 to design airplanes and missiles. In 1943 the made a computer named Colossus to break secret codes during World War II.
In 1944, an American Howard A. Aiken, Professor of Harvard University, made the first electromechanical computer, Mark I. it was about51 feet long and 8 feet high. It was a slow machine. Over 3Q00 electrical actuated switches were used to control its operations.
In 1946, ENIAC (Electronic Numerical Integrator and Computer) was made by Dr. John W. Mauchy collaborated with J. Presper Eckert, Jr. at the university of Pennsylvania. It was 1000 times faster than Mark I. It oãcupied 150O0 square feet of floor spacing and weighs 30 tons. The ENIAC could do 5000 additions per minute.
John Von Neumann designed the EDVAC (Electronic Discrete Variable Automatic Computer). The key element of the Von Neumann architecture was the central processing unit, which allowed all computer functions to be coordinated in binary form (0 & 1).
1951, UNIVAC-i (Universal Automatic Computer UNIVAC-i) built and Eckert for Remington Rand Corporation, and installed in the U.S.Census, became one of the first commercially available computers.
In today's era of competitive corporate world, one can find number of examples where a candidate gets a job just because heshe had a stellar interview or has some personal reference. More >>
Any individual who has ever interviewed scores of candidates must have yearned for a tool that can enable them to select the most qualified candidate for the organization. More >>
Electrical and Electronic Engineering course comprises subjects that allow students to understand basic to advanced levels read on to explore more. More >>
DiSC profiles can be easily created by answering a DiSC questionnaire. A standard questionnaire has twenty four questions that have four options each, with responses ranging from “Most Likely” to “Least Likely”. More >>
The mining, construction and engineering accessories are important for doing the work in respective fields. It is recommended to buy these accessories from a reputed company. More >>
Chordates typically have one of two basic structures for respiration, or gas exchange. As a general rule, aquatic chordates—such as tunicates, fishes, and amphibian larvae—use gills for respiration. More >>
In 1939 most light tanks (in short, almost all tanks) were equipped with main armament in the 37-40mm (1.46- 1 .57in) class. More >>
The most famous example of a fifth’ generation computer is the fictional HAL 9000 from Arthur C. Clarke’s Novel, 2001 .a space Odyssey. More >>
Compared with invertebrates, most chordates have elaborate systems that allow them to respond to stimuli in their environment. More >>
Excretory systems eliminate nitrogenous wastes from the body. In nonvertebrate chordates and fishes, gills and gill slits play an important role in excretion. More >>