History of the History of the ComputerComputer

David David CovarrubiasCovarrubias

Terms of ComputersTerms of Computers► BitBit - A bit or binary digit is the basic unit of information in computing - A bit or binary digit is the basic unit of information in computing

and telecommunications. and telecommunications. ► KilobitKilobit - A unit of computer memory or data equal to 1,024 (210) bits. - A unit of computer memory or data equal to 1,024 (210) bits. ► MegabitMegabit - A unit of data size or (when expressed per second) network - A unit of data size or (when expressed per second) network

speed, equal to one million or (strictly) 1,048,576 bits.speed, equal to one million or (strictly) 1,048,576 bits.► ByteByte - A group of binary digits or bits (usually eight) operated on as a - A group of binary digits or bits (usually eight) operated on as a

unit. unit. ► KilobyteKilobyte - A unit of memory or data equal to 1,024 (210) bytes. - A unit of memory or data equal to 1,024 (210) bytes. ► MegabyteMegabyte - A unit of information equal to 220 bytes or, loosely, one - A unit of information equal to 220 bytes or, loosely, one

million bytes. million bytes. ► Gigabyte Gigabyte - A unit of information equal to one billion (109) or, strictly, - A unit of information equal to one billion (109) or, strictly,

230 bytes. 230 bytes. ► TerabyteTerabyte - A unit of information equal to one million million (1012) or - A unit of information equal to one million million (1012) or

strictly, 240 bytes. strictly, 240 bytes. ► Petabyte Petabyte - a unit of information equal to 1000 terabytes or 10^15 - a unit of information equal to 1000 terabytes or 10^15

bytes. bytes. ► RamRam - Random Access Memory - Random Access Memory

First LaptopFirst Laptop► Designed to be the ultimate portable computer, the clamshell-style Designed to be the ultimate portable computer, the clamshell-style GRiD GRiD

Compass 1101Compass 1101 is the grand-daddy of all present-day laptop computers. is the grand-daddy of all present-day laptop computers.

The Compass is very high-tech, with its flat-black, die-cast magnesium-alloy The Compass is very high-tech, with its flat-black, die-cast magnesium-alloy case, and bright, sharp electroluminescent display (ELD). No other system case, and bright, sharp electroluminescent display (ELD). No other system packed so much speed and power in as small a case, and none had such a packed so much speed and power in as small a case, and none had such a unique and large, easy-to-read screen, allowing full 80x24 text. unique and large, easy-to-read screen, allowing full 80x24 text.

Of course, all of these great features raised the price significantly. At Of course, all of these great features raised the price significantly. At $8150, the GRiD Compass 1101 was the most expensive personal $8150, the GRiD Compass 1101 was the most expensive personal computer you could buy. computer you could buy.

5 First Companies

►IBM-Thomas J Watson►Hewlett-Packard-Bill

Hewlett and Dave Packard

►Toshiba-Hisashige Tanaka

►Apple-Steve Wozniak ►Dell-Michael Dell

First ComputerFirst Computer► ““On April 7, 1953 IBM On April 7, 1953 IBM

publicly introduced the publicly introduced the 701, its first electric 701, its first electric computer and first mass computer and first mass produced computer. Later produced computer. Later IBM introduced its first IBM introduced its first personal computer called personal computer called the "IBM PC" in 1981. The the "IBM PC" in 1981. The computer was code computer was code named and still sometimes named and still sometimes referred to as the "Acorn" referred to as the "Acorn" and had a 8088 processor, and had a 8088 processor, 16 KB of memory, which 16 KB of memory, which was expandable to 256 was expandable to 256 and utilizing MS-DOS.”and utilizing MS-DOS.”

Important Dates in Computer Important Dates in Computer HistoryHistory

► 1937 Alan Turing:1937 Alan Turing: Alan Turing develops the concept of Alan Turing develops the concept of a theoretical computing machine.a theoretical computing machine.

► 19391939 Hewlett Packard:Hewlett Packard:  William Hewlett and David   William Hewlett and David Packard start Hewlett PackardPackard start Hewlett Packard

► 19501950 Hideo Yamachito:Hideo Yamachito: The first electronic computer The first electronic computer is created in Japan by Hideo Yamachito. is created in Japan by Hideo Yamachito.

► 19671967 Floppy Disk:Floppy Disk: IBM creates the first floppy disk. IBM creates the first floppy disk.► 19761976 Apple: Apple: Apple Computers was founded Steve Apple Computers was founded Steve

Wozniak and Steve Jobs. Wozniak and Steve Jobs. ► 1977 Apple:1977 Apple: Apple Computer’s Apple II, the first Apple Computer’s Apple II, the first

personal computer with color graphics, is demonstrated.personal computer with color graphics, is demonstrated.► 19841984 Apple Macintosh: Apple Macintosh: Apple introduces the Apple introduces the

Macintosh with mouse and window interface.Macintosh with mouse and window interface.► 19911991 The World Wide Web:The World Wide Web: The World Wide Web is The World Wide Web is

launched to the public on August 6, 1991.launched to the public on August 6, 1991.► 19981998 GoogleGoogle: Google is founded by Sergey Brin and : Google is founded by Sergey Brin and

Larry Page on September 7, 1998.Larry Page on September 7, 1998.► 20022002 Approximately 1 billion PCs been sold. Approximately 1 billion PCs been sold.

Viruses, Worms, And Trojan Viruses, Worms, And Trojan HorsesHorses

► VirusVirus - A computer virus attaches itself to a program or file - A computer virus attaches itself to a program or file enabling it to spread from one computer to another, leaving enabling it to spread from one computer to another, leaving infections as it travels. infections as it travels.

► WormWorm - A worm is similar to a virus by design and is considered - A worm is similar to a virus by design and is considered to be a sub-class of a virus. Worms spread from computer to to be a sub-class of a virus. Worms spread from computer to computer, but unlike a virus, it has the capability to travel computer, but unlike a virus, it has the capability to travel without any human action. A worm takes advantage of file or without any human action. A worm takes advantage of file or information transport features on your system, which is what information transport features on your system, which is what allows it to travel unaided.allows it to travel unaided.

► Trojan HorseTrojan Horse - The Trojan Horse, at first glance will appear to be - The Trojan Horse, at first glance will appear to be useful software but will actually do damage once installed or run useful software but will actually do damage once installed or run on your computer.  Those on the receiving end of a Trojan Horse on your computer.  Those on the receiving end of a Trojan Horse are usually tricked into opening them because they appear to are usually tricked into opening them because they appear to be receiving legitimate software or files from a legitimate be receiving legitimate software or files from a legitimate source. source. 

SourcesSources

► Information from: Information from: http://www.computerhope.com/ http://www.computerhope.com/ http://www.webopedia.com/DidYouKnowhttp://www.webopedia.com/DidYouKnow/Internet/2004/virus.asp/Internet/2004/virus.asp

http://www.history-timelines.org.uk/http://www.history-timelines.org.uk/events-timelines/07-computer-history-events-timelines/07-computer-history-timeline.htmtimeline.htm

http://oldcomputers.net/grid1101.htmlhttp://oldcomputers.net/grid1101.html

http://oldcomputers.net/http://oldcomputers.net/

Future of ComputersFuture of Computers

►Sooner or later there will no longer be any Sooner or later there will no longer be any computers, but just things like tablets and computers, but just things like tablets and portable computers. Holographic portable computers. Holographic technology will come into play and we will technology will come into play and we will have computer programs out of thin air.have computer programs out of thin air.