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first calculating machine
In 1642, at the age of 18, Pascal invented and build the first digital calculator as a means of helping his father perform tedious tax accounting.The calculator had metal wheel dials that were turned to the appropriate numbers using a stylus; the answers appeared in boxes in the top of the calculator. Blaise's calculated was a polished brass box, about 350mm by 125 mm by 75mm. It was compact enough to carry. On the top was a row of eight movable dials, with numerals from 0 to 9, which is use -
the first nechanical computer
The first mechanical computer was invented by a mathematics professor in Cambridge England named Charles Babbage. he invented the computer to solved polynomial equations by the method of differences.He described his new idea as a general purpose, program controlled and fully automatic mechanical digital computer. -
the first all electronic computer
In late 1939, John Atanasoff teamed up with Clifford Berry to build a prototype. They created the first computing machine to use electricity, vacuum tubes, binary numbers and capacitors. The capacitors were in a rotating drum that held the electrical charge for the memory.they looked at the invention as a chellendge. -
the programmable computer
the Z3, built by Konrad Zuse in 1941, was crunching numbers in Germany. In a short article, the Register says the Z3 was the first programmable computer. Based on a binary floating-point number and switching system, it had all the attributes of today's computers, such as a control block, a memory, and a calculator. But it didn't have the ability to store the program in the memory together with the data because the memory was too small. It had a 64-word memory of 22 bits each and was able to hand -
the first stored programing computer
The Manchester Small-Scale Experimental Machine (SSEM), nicknamed Baby, was the world's first stored-program computer. It was built at the Victoria University of Manchester by Frederic C. Williams, Tom Kilburn and Geoff Tootill, and ran its first program on 21 June 1948. -
the first the first transistor computer
In parallel to the Meg project it was decided to build a relatively small and economic computer. When design was started in 1952 it was clear that the project could provide valuable experience in the use of the recently introduced transistors. It was built even though the germanium point transistors were more unreliable than valves, because semi-conductors held out the promise of lower power consumption, higher operating speeds, smaller size and greater reliability in the future. The experimen -
the first digital computer
The ENIAC was invented by J. Presper Eckert and John Mauchly at the University of Pennsylvania. -
the first micro computer
Intel delivered two different microcomputers five months apart: the MCS-4, emphasizing low cost, in November 1971, and the MCS-8, for versatility in April 1972. “The MCS-4 and MCS-8 CPU chip sell in quantity for less than $100 each, and are powerful alternatives to random logic” [1]. These two Micro Computer Systems (MCS) were aimed at two very different markets. One would eventually lead to the under $1 controller, the other would be the engine for a versatile personal computer (PC). By a -
the first workstation
Although never sold the first workstation is considered to be the Xerox Alto, introduced in 1974. The computer was revolutionary for its time and included a fully functional computer, display, and mouse. The computer operated like many computers today utilizing windows, menus and icons as an interface to its operating system. -
the first personal computer
In 1975 Ed Roberts coined the term personal computer when he introduced the Altair 8800. Although the first personal computer is considered to be the Kenback-1, which was first introduced for $750 in 1971. The computer relied on a series of switches for inputting data and output data by turning on and off a series of lights. The Micral is considered the be the first commercial non-assembly computer. The computer used the Intel 8008 processor and sold for $1,750 in 1973. -
the first laptop
The IBM 5100 is the first portable computer, which was released on September 1975. The computer weighed 55 pounds and had a five inch CRT display, tape drive, 1.9MHz PALM processor, and 64KB of RAM. The first truly portable computer or laptop is considered to be the Osborne I, which was released on April 1981. The Osborne I was developed by Adam Osborne and weighed 24 pounds, had a 5-inch display, 64 KB of memory, two 5 1/4" floppy drives, and a modem. IBM PCD later released the IBM portable i -
the first apple
Steve Wozniak designed the first Apple known as the Apple I computer in 1976. -
the first pc
On April 7, 1953 IBM publicly introduced the 701, its first electric computer and first mass produced computer. Later IBM introduced its first personal computer called the "IBM PC" in 1981. The computer was code named and still sometimes referred to as the "Acorn" and had a 8088 processor, 16 KB of memory, which was expandable to 256 and utilizing MS-DOS. -
the first multi midea computer
In 1992 Tandy Radio Shack becomes one of the first companies to release a computer based on the MPC standard with its introduction of the M2500 XL/2 and M4020 SX computers -
the present day computers
present day computers are about 5 pounds with a 10x15 box surrounding the many things inside.the monitors can be anything from a tv to a wall.major companys are dell,microsoft,gateway,and apple.
