1. Computer History By Jordan Mendez

2. Important Events 1936-The first computer is made 1962-The first computer game, Space Wars, is invented. 1969-The original “Internet” is invented. 1970-The first available RAM chip. 1974 The first computers are available to the public. 1979-First laptop is made. 1984-The first Apple computer is invented. 1985-Microsoft starts to compete with Apple. 1998-Google is introduced. 2004-Facebook is created.

3. Computer Terms RAM-Random Access Memory Bit-Short for binary digit, the smallest unit of information on a machine. Byte-A group of binary digits or bits (usually eight) operated on as a unit. Kilobyte-A unit of computer memory or data storage capacity equal to 1,024 (that is, 210) bytes. Gigabyte-A unit of computer memory or data storage capacity equal to 1,024 megabytes (230 bytes) Megabyte-A unit of computer memory or data storage capacity equal to 1,048,576 bytes Terabyte-A unit of computer memory or data storage capacity equal to 1,024 gigabytes (240 bytes). Petabyte-One quadrillion bytes. Exabyte-unit of information equal to 1000 petabytes or 10^18 bytes Zettabyte- a unit of information equal to 1000 exabytes or 10^21 bytes

4. First PC Steve Wozniak (1950– ) and Steve Jobs (1955– ), college dropouts who founded Apple Computer in 1976, are credited with inventing the first computer for home use. Working out of a garage, they spent six months developing the prototype (initial model) for Apple I. It was bought by some 600 hobbyists, who had to know how to wire, program, and set up the machine. Apple II was introduced in 1977 as the first fully assembled, programmable microcomputer. Nevertheless this machine still required customers to use their televisions as screens and to use audio cassettes for data storage. The Apple II sold for just under $1,300 That same year.

5. First Laptop The computer considered by most historians to be the first true portable computer was the Osborne 1. Adam Osborne, an ex-book publisher founded Osborne Computer and produced the Osborne 1 in 1981, a portable computer that weighed 24 pounds and cost $1795. The Osborne 1 came with a five-inch screen, modem port, two 5 1/4 floppy drives, a large collection of bundled software programs, and a battery pack. The short-lived computer company was never successful.

6. 5 Major Computer Companies IBM, founded by Thomas J. Watson. Apple, by Steve Jobs, Steve Wozniak, and Ronald Wayne. Dell, by Michael Dell. Toshiba, by Hisashige Tanaka. HP, by Bill Hewlett and Dave Packard, and Acer, by Stan Shih.

7. Viruses, worms and Trojan Horses are all malicious programs that can cause damage to your computer. programscomputer Virus-a program or programming code that replicates by being copied or initiating its copying to another program, computer boot sector or document. A computer virus attaches itself to a program or file enabling it to spread from one computer to another, leaving infections as it travels.computerprogramfile Worm-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 computer, but unlike a virus, it has the capability to travel without any human action. A worm takes advantage of file or information transport features on your system, which is what allows it to travel unaided. Trojan Horse-A Trojan Horse is full of as much trickery as the mythological Trojan Horse it was named after. The Trojan Horse, at first glance will appear to be useful software but will actually do damage once installed or run on your computer. Those on the receiving end of a Trojan Horse are usually tricked into opening them because they appear to be receiving legitimate software or files from a legitimate source. When a Trojan is activated on your computer, the results can vary. Some Trojans are designed to be more annoying than malicious (like changing your desktop, adding silly active desktop icons) or they can cause serious damage by deleting files and destroying information on your system. Trojans are also known to create a backdoor on your computer that gives malicious users access to your system, possibly allowing confidential or personal information to be compromised. Unlike viruses and worms, Trojans do not reproduce by infecting other files nor do they self-replicate.software desktopbackdoor

8. SOURCES http://inventors.about.com/library/blcoindex.htm http://www.history-timelines.org.uk/events-timelines/07-computer- history-timeline.htmhttp://www.history-timelines.org.uk/events-timelines/07-computer- history-timeline.htm http://www.t1shopper.com/tools/calculate/ http://www.enotes.com/history-fact-finder/science-invention/who- invented-first-personal-computerhttp://www.enotes.com/history-fact-finder/science-invention/who- invented-first-personal-computer http://www.webopedia.com/DidYouKnow/Internet/2004/virus.asp http://inventors.about.com/library/inventors/bllaptop.htm

9. The Future of Computers I believe that people will keep making advances with computers, but nothing really drastic. I don’t think they can get any smaller. They are already pretty smart now.