IOT POLY ENGINEERING 2-4 Classifying as Human to Human, Human to Machine, etc. Goals (6), inputs (1), processes (6), outputs (1), feedback (varies) Radio and telephone operation Sine wave modulation types: PM, AM, FM Terminology: –Information, knowledge, data, etc. Communication Technology Quiz Tomorrow

IOT POLY ENGINEERING 2-2 – Assignment should be set up similar to our example. – Also, include a labeled diagram. LETTER THIS ASSIGNMENT 1.Classify the following as 2.Radio, T.V., Cell Phone, Internet, GPS, Remote Control 3.Explain your classification. 4.Analyze the components of each of those 6 communication technologies, including the goal, source, encoder, transmitter, receiver, decoder, storage, retrieval, and destination. Homework - REMINDER 1 Info sheet required for each of the required 6 communication technologies: Radio, T.V., Cell Phone, Internet, GPS, Remote Control DUE FRIDAY 10/3 Do not leave any question in reader’s mind

IOT POLY ENGINEERING 2-4 –Print Graphic Communication Visual, lingual messages that include printed media –Photographic Communication Using photographs, slides, or motion pictures to communicate a message –Telecommunications Communicating over a distance –Technical Graphic Communication Specific information about a product or its parts Size and shape, how to install, adjust, operate, maintain, or assemble a device Classes of Communication Technology

IOT POLY ENGINEERING Print Graphic Communication Newspaper, poster, brochure, billboard 2.Photographic Communication Photographs, slides, motion pictures 3.Telecommunication Radio and t.v. broadcasts, computers, mobile and satellite 4.Technical Graphic Communication Engineering drawings (sketches, drafting, CAD) Classes of Communication Technology

IOT POLY ENGINEERING Print Graphic Communication 2.Photographic Communication 3.Telecommunications 4.Technical Graphic Communication Matching Classes TelephoneHeadphones BookComputer VideotapeRemote Control DVDPainting MagazineCamera PhotographComic Strip NewspaperBillboard 3 1 2, ,2

IOT POLY ENGINEERING 2-4 –Major Processes: Relief –A modeled work that is raised (or lowered) from a flat background. –Cuneiform by the Sumerians ~6000 years ago. –Wood block printing ~200 C.E. –Movable type printing ~1040 C.E. (Gutenberg ~1450) –Intaglio (in-tal-yo) ~1430 –Rotary printing press ~1843 Lithography (offset printing) ~1796 –The source and destination are not on raised surfaces –Grease and water do not readily mix –A chemical process –Most modern books and newspapers Print Graphic Communication Intaglio (in-tal-yo) 1. Depressions cut into printing plate 2. The plate is covered in ink 3. Excess ink is removed from surface 4. Paper placed on plate and compressed 5. Paper is removed and ink has been transferred By 593 A.D., the first printing press was invented in China, and the first printed newspaper was available in Beijing in 700 A.D. It was a woodblock printing. And the Diamond Sutra, the earliest known complete woodblock printed book with illustrations was printed in China in 868 A.D. And Chinese printer Bi Sheng invented movable type in 1041 A.D. in China. Low Relief High Relief Communication Technology Cuneiform

IOT POLY ENGINEERING 2-4 Screen Printing (~1000 C.E., China; 1907 England) –Mainly billboards, package labels, fabric designs –Uses a woven mesh (a screen) to support an ink blocking stencil. –The stencil forms open areas of mesh that transfer ink as a sharp-edged image onto a substrate. –A roller or squeegee is moved across the screen stencil forcing or pumping ink past the threads of the woven mesh in the open areas. Electrostatic (1938 / 1960s) –Photocopier, Laser Printer –Opposite charges attract Ink Jet (1980s) –Use a series of nozzles to spray ink directly on paper Print Graphic Communication Communication Technology

IOT POLY ENGINEERING 2-4 Photographic Communication –The process of using photographs to communicate a message –Photography – capturing light on a light-sensitive material such as film or electronic sensor –As a usable process, 1820s –Includes photographs, slides, and motion pictures Photographic Communication Communication Technology

IOT POLY ENGINEERING 2-4 Telecommunication –Communicating over a distance Tele – Greek, “far off” Communicare – Latin, “to share” –Rely on the principles of electricity and magnetism –2 types: Hardwired systems (telephone, cable, fiber-optic) Broadcast systems (radio and t.v., mobile phones) –Point-to-point: One transmitter and one receiver –Broadcast: One powerful transmitter to numerous receivers Telecommunications Communication Technology

IOT POLY ENGINEERING 2-4 –Smoke signals and drums –Chains of beacons (Middle Ages) Navigation signals Enemy troops approaching –Homing pigeons Carrier pigeons used as early as 1150 in Baghdad Olympic victors, Greece; Stock options, Europe –Optical telegraph (semaphore, 1792, France) Towers with pivoting shutters Information encoded by the position of the mechanical elements Telecommunications Communication Technology

IOT POLY ENGINEERING 2-4 –Telegraph (mid 1830s) First instrument used to send messages by means of wires and electric current A device interrupts the flow of a current through a wire Uses shorter and longer bursts of current to represent letters Device at receiving end converted electrical signal into clicks Operator/mechanical printer converted clicks into words Telegram – wires over land Cable – wires under water –Telephone (1876 – Bell and Gray) Greek: tele – far, phone – sound Telecommunications Communication Technology

IOT POLY ENGINEERING 2-4 Telecommunications Play Morse Code Video

IOT POLY ENGINEERING 2-4 –Broadcast Radio (1893 – Tesla, 1901 – Marconi) Television (1925) –Greek: tele – far, Latin: visio – seeing –4 main parts (cathode ray tube) –Electron gun fires 3 beams –Steering coils move electron beam across screen –Phosphorus screen has over 200,000 pixels –Glass tube holds it all together –Signals are broadcasted like radio signals Telecommunications Communication Technology

IOT POLY ENGINEERING 2-4 –Computers –Internet –Cellular –Local Area Networks –Satellite Communication Telecommunications Communication Technology

IOT POLY ENGINEERING 2-4 Technical Graphic Communication Communication Technology –Engineering Drawing / Technical Illustration Communicates specific information –Size and shape –How parts are assembled –How to install, operate, adjust, maintain a device Hand methods –Sketching –Drafting Computer methods –CAD (AutoCAD, Sketchup, Inventor, ProEngineer, etc.)

IOT POLY ENGINEERING 2-1 –Goals Inform Persuade Entertain Control Manage Educate –Inputs Source of Communication –Processes Encoder Transmitter Receiver Decoder Storage Retrieval –Outputs Message to the destination –Feedback and Control Reversing the communication line INPUTS PROCESSESOUTPUTS GOALS FEEDBACK Control Communication Technology Not always

IOT POLY ENGINEERING 2-1 INPUTS PROCESSESOUTPUTS GOALS FEEDBACK Control Communication Technology Transmitted Communication Encoder Transmitter Receiver Decoder Storage Retrieval Received Communication Input Process Output SOURCE DESTINATION TECHNOLOGY Inform Persuade Entertain Control Manage Educate

IOT POLY ENGINEERING A device that changes a message into a form that can be transmitted 2.A device that sends a signal (i.e., encoded message) 3.A device that acquires a signal (i.e., encoded message) 4.A device that changes a coded message into an understandable form Decoder Encoder Receiver Transmitter Data Match the statements with the correct term below:

IOT POLY ENGINEERING 2-2 Communication Knowledge Information Storage 1.Unorganized facts 2.Organized data 3.Information applied to a task 4.The sending and receiving of information Data Match the statements with the correct term below: Communication Technology

IOT POLY ENGINEERING 2-2 Radio: Pulse Modulation: turn the voltage (sine wave) on/off (Morse Code) Amplitude Modulation: vary the amplitude (peak-to-peak) voltage Frequency Modulation: vary the frequency (speed) PM AM FM Encoder: Devices that convert sound and information into a modulated sine wave Communication Technology