世界上第一台电脑英语作文 英语
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【答案】 The first generation puter editing is also called vacuum tube puter. Electronic puter to the electronic tube for the main circuit elements. The first electronic tube puter in February 14, 1946 made in the United States, named ENIAC (ENIAC). 1946-1957 production of electronic puters are first generation electronic puter.
The world's first electronic puter is a huge monster: weighing 27 tons, covers an area of 150 square meters, the belly is provided with 18800 electron tube. It is 1946, University of Pennsylvania was born in American.
In the Second World War, the opposing sides are used in aircraft and artillery and other military targets, bombing. To hit, must be accurately calculated and drawn shooting chart. The investigation table to determine the muzzle perspective, can make the shot out of the shell hit the flying target. However, every number to do four operations can be thousands of times out of ten people, is a few months by hand-operated mechanical puter, to plete a chart. In view of this situation, people begin to study the electronic tube as electronic switch to improve the puting speed. Many scientists have participated in the experiment and research, and finally made the first electronic puters in the world, named eniac.
In twentieth Century 40 time metaphase, the University of Pennsylvania Electrical Engineering Department by Molich and the leadership of Ekt, for a projectile trajectory calculation Electronic Numerical Integrator and puter developed for the US Army Ordnance Department Aberdeen Ballistic Research Laboratory (ElectronicNumericalIntegratorandCalculator ENIAC). This is called ENIAC puter covers an area of 150 square meters, the total weight of 30 tons, the use of 18000 tube, 6000 switches, 7000 resistances, 10000 capacitors, 500000 lines, power consumption 140 kilowatts, can be 5000 times the addition / second operation. The monster in the U.S. in February 15, 1946 held the unveiling ceremony. This puter, marks the beginning of the puter age.
The earliest predecessor before the puter is one kind is called adder thing... Was developed by the French mathematician Pascal invention and later gradually improved... Can do + - * / four operations difference engine
By 1801 the French Joseph Jekwad (JosephJacquard) invented the use of punch cards (Punchedcarboardcard). The future development of puter introduced two important concept:
First, information can be encoded in a punched card on (Coded) is to write program...
John Von Neumann
John Von Neumann
Two, the information can be stored in the card, and when these cards strung together, can do a series of instructions... This program... ^ ^
Then came a person... In the history we called him the father of puter - Babeki (CharlesBabbage)
He made a more powerful machine, called the analytical engine (Analyticalengine), the machine in the concept is very similar with modern puter...
The invention is used for auxiliary calculation tool, there is no memory and data storage function, so it can not be called puter
Until 1946, Mao Qili and Ekt of the United States invented the first generation puter - ENIAC,
While the first generation of puters has 2 classrooms... We now typically used with personal puters many poor volume... ^ ^
At the time of the puter parts is vacuum tube (now can not find)
And archive what... Is a punch card...
Therefore, the invention of the puter is a group of scientific research personnel joint efforts, but the design thought of the mathematician von Neumann plays a key role, so von Neumann is called the father of the modern puter.