Modern Modern CommunicationCommunication

Charles BabbageCharles Babbage

Babbage Engine - 1830Babbage Engine - 1830

Cam wheelCam wheel

Organ camOrgan cam

Basile BouchonBasile Bouchon

Son of an organ maker, he realized Son of an organ maker, he realized the perforated paper pattern to tell the perforated paper pattern to tell the organist where to place the pegs the organist where to place the pegs could be used as a controller on a could be used as a controller on a loomloom

In 1725 built a loom using a loop of In 1725 built a loom using a loop of perforated paper to control the perforated paper to control the thread lifters on a loomthread lifters on a loom

Bouchon’s loomBouchon’s loom

Jean-Baptiste FalconJean-Baptiste Falcon

In 1728 Falcon In 1728 Falcon improved on improved on Bouchon’s idea by Bouchon’s idea by substituting cards substituting cards for the paper roll.for the paper roll.

Jaques de VaucansonJaques de Vaucanson

In 1741 improved In 1741 improved the system by the system by automating itautomating it

Used a perforated Used a perforated cylinder, then cylinder, then placed a perforated placed a perforated paper roll around itpaper roll around it

Added a ratchet Added a ratchet system to advance system to advance the cylinderthe cylinder

Joseph JacquardJoseph Jacquard

In 1800 perfected In 1800 perfected the system using the system using cards like Falcon cards like Falcon and Vaucanson’s and Vaucanson’s ratchet systemratchet system

Created the Jaquard Created the Jaquard loomloom

Jaquard gets all the Jaquard gets all the credit for everyone credit for everyone else’s previous workelse’s previous work

Jacquard LoomJacquard Loom

Herman HollerithHerman Hollerith

Hollerith TabulatorHollerith Tabulator

Card punchCard punch

Hollerith punch card – Hollerith punch card – 1890 Census1890 Census

German Z3 - 1941German Z3 - 1941

Konrad ZuseKonrad Zuse

Zuse tubeZuse tube

BinaryBinary

00 00

11 11

22 1010

33 1111

44 100100

55 101101

66 110110

77 111111

88 10001000

99 10011001

British Colossus - 1944British Colossus - 1944

Eniac - 1946Eniac - 1946

Illiac - 1952Illiac - 1952

Brlesc - 1956Brlesc - 1956

Vacuum tubeVacuum tube

The TransistorThe Transistor

Jack Kilby Robert Jack Kilby Robert NoyceNoyce

Kilby’s integrated circuit Kilby’s integrated circuit - 1958- 1958

Modern integrated Modern integrated circuitcircuit

Altair personal computer Altair personal computer -1975-1975

Bill Gates and Paul Allen Bill Gates and Paul Allen - 1975- 1975

Steve Wozniak and Steve Steve Wozniak and Steve Jobs - 1976Jobs - 1976

Apple I - 1976Apple I - 1976

Apple II - 1977Apple II - 1977

TRS-80 - 1977TRS-80 - 1977

Dan Bricklin/Bob Frankston Dan Bricklin/Bob Frankston – Visicalc 1978– Visicalc 1978

Gary Kildall and CP/M - Gary Kildall and CP/M - 19791979

Control Control Program for Program for MicrocomputMicrocomputersers

Kaypro and Osborne Kaypro and Osborne computerscomputers

Tim Patterson and QDOS Tim Patterson and QDOS - 1980- 1980

Quick Quick and Dirty and Dirty OperatinOperating Systemg System

Apex VR1000 Video Apex VR1000 Video RecorderRecorder

Ampex Ampex Signature Signature

V V entertainmentertainment systement system

Sony BetamaxSony Betamax

VHS VCRVHS VCR

Sony Walkman - 1979Sony Walkman - 1979

Carl Auer Freiherr von Carl Auer Freiherr von WelsbachWelsbach

Georgia CayvanGeorgia Cayvan

Gordon GouldGordon Gould

Lou GerstnerLou Gerstner

DVRDVR

Early cell phoneEarly cell phone

Sony Walkman CD - 1984Sony Walkman CD - 1984

iPod - 2001iPod - 2001

GPSGPS

iPhone - 2007iPhone - 2007

The InternetThe Internet

Invented by the Advanced Research Invented by the Advanced Research Projects Agency (ARPA)Projects Agency (ARPA)

Required three changes in Required three changes in computers:computers: Going from analog to digitalGoing from analog to digital Connecting computers through phone Connecting computers through phone

lineslines Packet switchingPacket switching

Packet SwitchingPacket Switching

Divide any message into chunks of data, Divide any message into chunks of data, or packetsor packets Each packet is a small part of the messageEach packet is a small part of the message Each packet has a final destination addressEach packet has a final destination address The packets are sent through the computer The packets are sent through the computer

network over any and all pathwaysnetwork over any and all pathways The packets are reassembled at the The packets are reassembled at the

destination addressdestination address

ProtocolsProtocols

Codes that allow Codes that allow computers to talk to computers to talk to each other regardless of each other regardless of manufacturer or manufacturer or operating systemoperating system

Tim Berners-LeeTim Berners-Lee

Examples of HTML codesExamples of HTML codes

<p> = end of paragraph<p> = end of paragraph <mailto:> to put in an email address<mailto:> to put in an email address Making a listMaking a list

<ol>open list<ol>open list <li>item one<li>item one <li>item two<li>item two Close list</ol>Close list</ol>

<b>text</b> to put text in boldface<b>text</b> to put text in boldface

Marc Andreessen and Marc Andreessen and MosaicMosaic