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Oct 15, 1500
Sectors
Sectors were compass-like object that would perform many computations, from arithmetic to calculating areas and volumes and currencies. Many people including astronomers and the military used this device. Computer History -
Calculator Aid
A portable calculation aid that helped with multiplication and division by uising addition and subtraction was made. It used a table-based calculating method. Computer History -
A Leibniz Stepped Reckoner
This first true four-function calculator was built with unique gears and handles. This calculator introduced a design innovation that enabled a single gear to represent any digit from 0 to 9 in just one revolution. Computer History -
Tables
Tables were used to record data that was important for businesses, however they were full of errors. Computer History Video -
Charles Babbage
Charles Babbage represented a scienctist aristocrat in the 1800's, he attended Trinity in 1820 where he started studying table logs that were full or errors. This gave him an idea. Computer History Video -
Difference Engine
Charles came up with the idea for the difference engine that would write table out accurately. He then explaine his idea and receives startup funds for hsi idea. Computer History Video -
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Babbage and Lovelace work together
Ada lovelace met Babbage and she was awed by the Babbages engine and she starst to help him come up with a descriptions and ways that the engine could solve problems faster and better. This is how Ada became known as the first programmer. Computer History Video -
Completed the Engine
Babbage had enough parts to make the engine, it was solving problems and producing results but hte governent pulled the funds. Computer History Video -
Babbage's Death
Babbage dies in 1871 and only small parts of the engine was built in his lifetime. However, it it wasn't for him than they wouldn't have had the abstract mechanical idea for computers. Computer History Video -
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Keyboards
Keyboards were made with wooden pasta boxes, rubber bands, and sometime smeat skewers. Dorr E. Felt invernted it and pressing its keys drove the mechanism, which revealed the sum after all were pressed. Computer History -
ENIAC
ENIAC programmers proposed an idea for an all-electronic calculating machine, and one was built between 1943-1945. It was the first large scale computer to run at electronic speed with being slwoed by any parts. Computer History -
UNIVAC
Computing became popular with the Universal Automatic Computer, which was the first computer to become a houseehold name.Within six years, 46 of the million-dollar UNIVAC systems had been installed—with the last operating until 1970. Computer History -
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Floppy Disks
Magnetic hard disks that trasformed data storage started out as large and expensive.In the 1970s and 1980s, floppy disks were the primary storage device for word processors and personal computers, and became the standard way to distribute software. Computer History -
Apple II
Steve Wozniak designed the Appple II and it was promoted as an extraordinary computer for ordinary people. The user-friendly design and graphical display made Apple a leader in the first decade of personal computing. Computer History -
IMB PC
IBM introduced its PC with a folksy advertising campaign aimed at the general public.Yet, the IBM PC had its most profound impact in the corporate world. Companies bought PCs in bulk, revolutionizing the role of computers in the office—and introducing the Microsoft Disk Operating System (MS DOS) to a vast user community. Computer History -
Online
The World Wide Web began gaining popularity and lived up to its name. The Web is global - but specifics are often local. -
Phones
The chunky Simon phone combined the handheld computer and mobile phone. Ordinary phones added data services, including WAP browsing and unexpectedly popular SMS texting.From 1999, successful smartphones began appearing from companies around the world, bringing the Web to your pocket. Computer History -
Roadrunners
By the start of the 21st century, only a handful of firms continued to make supercomputers. Among the survivors was IBM, whose Roadrunner system broke the petaFLOP barrier in June 2008.
Roadrunner filled 278 refrigerator-sized racks, occupying 5,200 square feet and using 98 terabytes of memory. Computer History
