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Leibniz machine
Leibniz machine
It is used for calculating data and processing it. before it was invented, calculating machines could only add and subtract. After it was invented though, multiplication, division and extraction of roots were also added. The Leibniz machine is an input and output device. -
Charles Xavier Thomas’s Mechanical Calculator
Charles Xavier Thomas’s Mechanical Calculator
This calculator could add and subtract two numbers directly and could perform long multiplications and divisions effectively by using a movable accumulator for the result. It can also be used for more complex equations like square roots.
Its main contribution to the Computer System is that it can be used for calculations used in the computer and it c -
George Boole (Boolean Algebra)
George Boole (Boolean Algebra)
Known as the author of the law of thought . At age 19 Boole successfully established his own school at Lincoln.It help computer to simplefy by makeing 2 code 1 and 0.
It make digital for computer not very much intrest fact he just too smart, make digital icore and desing thing by using number. it can use in input out put storae processing network and etc.In 1847 Boo -
The First Programmer: Augusta Ada King
The first programmer
Augsta Ada King wrote an algorithm that could be processed by Charles Babbage's Analytical Engine, which was never built. -
ICT- Computer System (Chester Carlson's Xerox machine)
Computer System
It’s important to the computer system because it helps us photocopy papers. The xerox machine is used in offices and retail stores. Also it used in business, education, and government. -
John V. Aranasoff and Clifford Berry
John V. Antasoff and Clifford Berry
John V. Atanasoff was American physicist and inventor, and Clifford Berry was graduate student.
They contributed to binary digit, parallel computing, regenerative memory and so on. They aimed to implement the three critical ideas.
-using binary digits to represent all numbers and data
-performing all calculations using electronics rather than wheels, ratchet -
Integrated Circuit (chip) - Jack Kilby & Robert Noyce
Integrated Circuit (chip) - Jack Kilby & Robert Noyce
Integrated circuit are the hardware or processor. Chip are used for a variety of devices like microprocessor, audio and video equipment, etc.Chip makes computer faster, and it is the processor of the computer. -
Integrated Circuit: Jack Kilby
Integrated Circuit
integrated is made out of lots of transistors.
The main contribution about integrated circuit is that it is used in personal computer and also reduce the cost of the computer so more people are able to buy them which allow them to use the personal computers. -
Douglas Engelbart
Douglas Engelbart
Douglas Engelbart was an American engineer and inventor. He is also an early computer and internet pioneer. He made the mouse. -
MS-Dos Operate System
MS-Dos Operate System (Hetvi) MS-DOS is a short name of Microsoft Disk Operate System.
It was the most commonly used member of the DOS family of operating system.
Also it was the main operating system for IBM PC compatible personal computers during the 1980s to the mid 1990s. -
Tim Berners-Lee: World Wide Wab
Tim Berners-Lee
Tim Berners-Lee created the World Wide Web. He wrote the first web client and server in 1990. His specifications of URLs, HTTP and HTML were refined as Web technology spread. -
Charles Babbage Analytical Engine
Charles Babbage Analytical Engine
The main contribution to the Computer System is that it had a store and a mill. Also an analogous to today's memory and processor. This engine is aimed to be classified under Input Devices and Output Devices. -
Charles Babbage Difference Engine
Charles Babbage Difference Engine
The difference engine is input and output, because it consists of a number of columns, numbered from 1 to N. The machine is able to store one decimal number in each column. The machine can only add the value of a column n + 1 to column n to produce the new value of n. Column N can only store a constant, column 1 displays (and possibly prints) the value of the cal
