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By: Aaron Period 4. Well there are contradictions on which computer was first because some didn’t. So it could be one of the following. 1. The Z1 created.

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Presentation on theme: "By: Aaron Period 4. Well there are contradictions on which computer was first because some didn’t. So it could be one of the following. 1. The Z1 created."— Presentation transcript:

1 By: Aaron Period 4

2 Well there are contradictions on which computer was first because some didn’t. So it could be one of the following. 1. The Z1 created by Germany's Konrad Zuse 2. The ABC (Atanasoff-Berry Computer) created by Professor John Vincent Atanasoff and graduate student Cliff Berry 3. The ENIAC invented by J. Presper Eckert and John Mauchly

3 This term came from Grace Murray Hopper's report of finding an actual bug--a moth--inside a computer and removing it.

4 The internet gained a public face in the 1990s. On August 6, 1991, CERN, which straddles the border between France and Switzerland, publicized the new World Wide Web project, two years after British scientist Tim Berners- Lee had begun creating HTML, HTTP and the first few Web pages at CERN. It's purpose was to enable university and government engineers to research and work from any location on the network. It was a project for the Department of Defense.

5 The analytical engine, an important step in the history of computers, was the design of a mechanical general-purpose computer by English mathematician Charles Babbage. In its logical design the machine was essentially modern, anticipating the first completed general-purpose computers by about 100 years.

6 The tabulating machine was an electrical device designed to assist in summarizing information and, later, accounting. Invented by Herman Hollerith, the machine was developed to help process data for the 1890 U.S. Census.

7 John Mauchly and J. Presper Eckert built the machine at the University of Pennsylvania at the behest of the U.S. military. Mauchly had attracted the army's attention when he announced in 1942 that he thought vacuum tubes could be used to speed up the mechanical calculators being used at the time. Speedy calculations was just what the military needed during World War II as they pounded out tables for their weapons arsenal -- tables that could tell a soldier just which settings a particular piece of artillery needed under a particular set of conditions.

8 Definition - A sequence of instructions that a computer can interpret and execute; "the program required several hundred lines of code"

9 Before the development of transistors, vacuum tubes were the main active components in electronic equipment. The key advantages that have allowed transistors to replace their vacuum tube predecessors in most applications are: Smaller size (despite continuing miniaturization of vacuum tubes) Highly automated manufacture Lower cost (in volume production), and Lower possible operating voltages Operation without a warm-up period

10 Ed Roberts, the "father of the microcomputer" designed the first microcomputer

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12 r_come_from technology.html what-to-write-in-a-bug-report-6.html


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