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# History of Computers

by

## Michaela Chandler

on 17 October 2012

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#### Transcript of History of Computers

Madi's Circle Kyli's Circles Mickey's Circle History of Computers!
By: Kyli, Madi, and Mickey Logarithms 2600 B.C. Napier's Bones The Abacus log·a·rithm

noun /ˈlôgəˌriT͟Həm/  /ˈlägə-/

logarithms, plural

A quantity representing the power to which a fixed number (the base) must be raised to produce a given number Napier's bones were also called Napier's rods. The Logarithm was invented by John Napier to simplify Equations. He invented it in the early 17th centenary. They can be used to perform multiplication of any number by a number 2-9. It was also called a 'counting frame'. This process was published by Napier in 1617. Logarithms we qickly adopded by navigators, scitentists, enginers and other mathmatitions. It's a calculating tool primarily used in Asia for arithmetic processes. The process is called rabdology. It was used by merchants, traders, and clerks in Africa and Asians. Log Log Log b ( ) x y Grace Hopper = b ( x Grace Brewster Murray graduated from Vassar with a B.A. in mathematics in 1928. ) + b ( y ) 1622 the logarithm of a product is the sum of the logarithms of the factors: She married Vincent Foster Hopper. Slide Ruler Year 1614 Also known as the slip-stick Her best-known contribution to computing was the invention of the compiler, the intermediate program that translates English language instructions into the language of the target computer. Throughout her life, it was her service to her country of which she was most proud. Is mainly used for multiplication and division It was used as a calculation device. Mechanical Calculating
Machines Grace Hopper http://www.sdsc.edu/ScienceWomen/hopper.html Work Cited Its a machine that can preform addition, subtraction, multiplication and division George Boole:
1.1 1976–1980: The early years
1.2 1981–1985: Lisa and Macintosh
1.3 1986–1993: Rise and fall
1.4 1994–1997: Attempts at reinvention
1.6 2005–2007: The Intel transition
1.8 2011–present: Post–Steve Jobs era Some facts about Konrad Charles Babbage Konrad Zuse Charles Babbage was an English mathematician, philosopher, inventor and mechanical engineer who originated the concept of a programmable computer. 1910–1995 Considered a "father of the computer" Babbage is credited with inventing the first mechanical computer that eventually led to more complex designs. Was a German civil engineer, inventor and computer pioneer. http://en.wikipedia.org/wiki/Charles_Babbage Parts of his uncompleted mechanisms are on display in the London Science Museum. Born in Berlin, Germany, on 22 June 1910, he moved with his family in 1912 to Braunsberg, East Prussia, In 1991, a perfectly functioning difference engine was constructed from Babbage's original plans. In 1946, Zuse founded one of the earliest computer companies: the Zuse-Ingenieurbüro Hopferau Built to tolerances achievable in the 19th century, the success of the finished engine indicated that Babbage's machine would have worked. Nine years later, the Science Museum completed the printer Babbage had designed for the difference engine. IBM introduced the PC MS-DOS. 1981 Works Cited http://en.wikipedia.org/wiki/Konrad_Zuse http://histinf.blogs.upv.es/2010/11/02/konrad-zuse/ http://histinf.blogs.upv.es/2010/11/02/konrad-zuse/ http://www.zib.de/zuse/home.php SWITCH CIRCUITS Kyli is cool pooop It’s a method of connecting technical networks. Circuits would connect you to someone else’s network so it was possible to talk to them, like calls, messaging, est. Magnetic Tape Early 1950's One roll of magnetic tape could store as much data as 10,000 punch cards it achieved instant success and became the most popular way of storing of computer data until the mid 1980s During the 1960s, the punch card as the primary medium was gradually replaced by better, more capable and more efficient magnetic tape HOLLERITH’S TABULATOR Conclusion Tape backups were the most widespread, because of tape drive’s reliability, scalability and low cost I learned a lot from this project. I learned that computers have come a long way throughout the years. Technology is so high tech now and it wouldn't be that way if some of the amazing people I learned about didn't invent it.
Such as: Grace Hopper, her best-known contribution to computing was the invention of the compiler. And Frenchman Joseph Marie Jacquard invented a power loom that could base its weave, and many more. But the one thing I loved was learning about all of the women that invented important technology. Before I didn't know how to use prezi, but now I am more comfortable with Prezi. I had a lot of fun with this project because it was fun, easy, and I enjoyed working in a group of three. Work Cited http://www.backuphistory.com/ Hollerith’s tabulator was used in the United States in 1890. Cards
containing 288 locations at which holes could be punched ran under a set of contact
brushes which completed an electrical circuit wherever the holes appeared. The 1890
census processed the records of over 53 million people. http://www.ahutton.com/images/flxlabls.gif http://www.chipsetc.com/univac--sperry--remmington-rand.html Works Cited http://en.wikipedia.org/wiki/Abacus http://forums.civfanatics.com/showthread.php?t=459006 http://www.inc.com/welcome.html?destination=http://www.inc.com/minda-zetlin/leverage-big-data-in-your-small-business-5-tips.html Works Cited http://en.wikipedia.org/wiki/Slide_rule http://museum.mit.edu/150/19 The IBM was the one who assembled to develop the PC decided that critical components of the machine, like the operating system, would come from outside vendors. This radical break from company tradition of in-house development was the big decision that made the IBM PC an industry standard. But it was done to save time. Microsoft was picked to do the operating system.IBM first contacted Microsoft to look the company over in July 1980. Negotiations continued over the next months, and the paperwork was officially signed in early November. There for the introducing to the PC 1960 CDC 1604 Was a 48-bit computer designed and manufactured by Seymour Cray and his team at the Control Data Corporation Known as the first commercially successful transistorized computer The first 1604 was delivered to the US Navy in 1960 1977 Radio Shack TRS-80 Was Tandy Corporation's desktop microcomputer model line, sold through Tandy's Radio Shack stores in the late 1970s and early 1980s, and one of the earliest mass-produced personal computers The Intel Pentium
processor appeared. The line won popularity with hobbyists, home users, and small-businesses 1993
The pre-release price was \$500 and a \$50 deposit was required, with a money back guarantee at time of delivery http://en.wikipedia.org/wiki/TRS-80 http://www.oldcomputers.com/museum/computer.asp?c=243 The prosseser was a 2 star rating in quality when i can out, it was the fith generation of its time. On March 22, 1993. Marketing firm Lexicon Branding was hired to coin a name for the new processor. Due to its success, the Pentium brand would continue through several generations of high-end processors beyond the original. http://mew3.us/images/vintagecomputer/trs80m3.jpg http://en.wikipedia.org/wiki/Pentium Works Cited! The Apple IIe Is the third model in the Apple II series of personal computers produced by Apple Computer It also improved upon expandability and added a few new features The Apple IIe has the distinction of being the longest-lived computer in Apple's history, having been manufactured and sold for nearly 11 years with relatively few changes. 1983 http://en.wikipedia.org/wiki/Apple_IIe http://www.computercloset.org/AppleIIePlatinum.htm http://www.vectronicsappleworld.com/profiles/50.html Works Cited Questions? Summary Over all I found doing this project a lot of fun. I'm not used to working in groups of three, usually you're just working in pairs or by yourself, so it was an interesting opportunity for me. I learned a lot by doing this project too. Like interesting facts about the technology that has led up to our modern day electronics. I also learned that more than one person could work on a Prezi at a time. It was easier to work on the project this way, and we could bounce idea's off of each other which, in my opinion, made our project come out better and more unique. K y l i ' s C i r c l e s ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' '
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