Lecture 1 Hardware – Understanding Computers and the Internet.



Lecture by Dan Armendariz and David J. Malan of Harvard University.
This course is all about understanding: understanding what’s going on inside your computer when you flip on the switch, why tech support has you constantly rebooting your computer, how everything you do on the Internet can be watched by others, and how your computer can become infected with a worm just by being turned on. Designed for students who use computers and the Internet every day but don’t fully understand how it all works, this course fills in the gaps. Through lectures on hardware, software, the Internet, multimedia, security, privacy, website development, programming, and more, this course “takes the hood off” of computers and the Internet so that students understand how it all works and why. Through discussions of current events, students are exposed also to the latest technologies.

This is OpenCourseWare.
Source Code, slides, subtitles and downloads of video availible at http://computerscience1.tv/2011/spring/

This course’s content is licensed by Dan Armendariz and David J. Malan of Harvard University under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.

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22 Comments on “Lecture 1 Hardware – Understanding Computers and the Internet.”

  1. Stupid white trash
    Black invent everything ๐Ÿ‘‡๐Ÿ˜‚๐Ÿ‘‡Black invent everything
    Golf tee George franklin =1899
    Lonnie Johnson Black Engineer Invents 1000 Mile Engine on Single Charge
    Super soaker Lonnie Johnson nasa scientist
    Automatic traffic signal with a warning settings garret morgen
    Blood bank Charles drew organized the first blood banks
    Beer keg tap Richard spikes
    Rotary egg beater Willis Johnson
    TV security systems Marie van brittan brown & her husband Albert brown
    Answering machine Benjamin Thornton
    Laserphaco probe Patricia bath
    Light bulb Lewis Latimer
    Mailbox Philip downing
    Elevator doors Alexander miles
    Pacemaker otis boycin. . .
    Dry machine j.ross moore
    Air conditioning unit =federick M . Jones 1949
    Almanac =Benjamin Banneker 1791
    Auto cut off switch =Granville T . woods 1839
    auto fishing devise =G.cook 1899
    automatic gear shift =Richard spikes 1932
    Baby buggy =W.H Richardson
    bicycle frame =Lr Johnson 1899
    biscuits cutter machine A.p Ashbourne 1875
    Blood plasma bag Charles drew 1945

    Champer commade T.elkins 1862
    Clothes dryer G.T sompson 1862
    Curtain rod support William S.grant 1896
    Eye protector p. Johnson 1880
    Fire scape ladder J.W. winter 1878
    Folding bed = L .C . Bailey 1889
    Folding chairs body and surgwar 1889
    Fluntain pen =W.B purvis 1890
    Furniture caster O.A fisher 1879i
    Gas mask garret morgen 1914
    Guitar Robert F.flemming JR =1886
    icecream scooper A .L . scooper 1897
    Improv. Sugar making =Norbet rellieux 1846
    Motor. Frederick M. Jones 1939
    Phone transmitter =Granville T. woods 884
    Record player arm =Joseph Hunger Dickensen 1819
    Refrigerators J.standard. 1891
    Street sweeper =Charles B.brooks 1890
    Thermostat control federick M . Jones 1923
    Type writers Bridge and Marshman 1885
    Shirley Ann jackson 1946 theoretical physicist invented ๐Ÿ‘‡
    ๐Ÿ‘‰The portable fax
    ๐Ÿ‘‰Touch tone telephones
    ๐Ÿ‘‰Solar cells
    ๐Ÿ‘‰Call ID
    ๐Ÿ‘‰Call waiting
    ๐Ÿ‘‰Fiber optics
    ๐Ÿ‘‰ Alcorn, George Edward, Jr. 1940โ€“ Physicist, inventor Invented a method of fabricating an imaging X-ray spectrometer
    Frederick D Patterson Americas Only Black Car Manufacturer in 60s
    Mark E.dean ,computer sckentkst engineer Design hardware that conmected various tech to computers
    . Dr. Mark Dean, an african america, invented the personal computer and the color pc monitor.
    Philip Emeagwali, a black nigerian is the father of the internet. Emmit McHenry wrote the code that allows you to surf the internet and use email. Read the book "African Americans Contributions To Math and Science"..
    Emmit McHenry created a complex computer code whereby ordinary people can now surf the web or have e-mails without studying computer science. He created what we know today simply
    Cardiopad =Cameronian Marc Arthur
    Multi -core processor=nigerian ayinde olutokun
    CAT Scan =s,african allan cormack
    Cellular antenna =s,african Paul jaarsveld
    Surgical robot neurosurgeons ROSA to treat brain disease, such as epilepsy by Benin.French citizens bertin nahun
    Bashen janet invent weblink First African-American woman to receive a patent for a web-based software invention, LinkLine, an Equal Employment Opportunity case management and tracking software
    โ€Ž George R.Careuthers The ultraviolet camera spectrograph
    His device studies earth's atmosphere ,providing crucial data on how the planet works
    1980, valerie Thomas received a patent for an illusion transmitter. The device produces optical illusion images via two concave mirrors. Unlike flat mirrors, which produce images that appear to be inside, or behind the mirror, concave mirrors create images that appear to be real, or in front of the mirror itself. This technology was subsequently adopted by NASA and has since been adapted for use in surgery as well as the production of television and video screens.
    Mark Hannah 3D graphics technology used in films,the computer scientist developed 3D technology that is used in Hollywood films.
    Otis Boykin The artificial heart Pacemaker control unit the modern day Pacemaker would not exist without his engineering work
    Emeagwali received the 1989 Gordon Bell Prize for an application of the CM-2 massively-parallel computer. The application used computational fluid dynamics for oil-reservoir modeling. He won in the "price/performance" category,. Prophet Kim Un jong. 23 minutes ago (edited). 4 replies. .๏ปฟ. Prophet Kim Un jong. 44 seconds ago (edited). . .

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