o Technology is the evolution of an idea.o It’s the thinking of a man or woman who sees beforethem an opportunity to improve a process, or to create adevice or object that facilitates, improves or aidssomething or someone else.o Technology is about a unique inspiration given the remitof creativity and the notion to express that idea assomething real and tangible.o However, the motives for this spark of creativity aren’talways as laudable and arguably lamentable.WHAT IS TECHNOLOGY ?
Up till now it is still a mysteryas to who invented thewheel and when the wheelwas invented. It was made by joiningplanks of wood together. It was a roller made of wood.WHEEL
WHEELFIRST STAGE Early man placed rollerbeneath heavy objectsso that they could moveit easily.SECOND STAGE Then they began to placerunners under a heavyload which theydiscovered would make iteasier for the load to drag. This was the invention ofsledge.
WHEELTHIRD STAGE Then they began tocombine the roller andthe sledge. As the sledge movedforward first roller thenthe second roller wasplaced one afteranother to move theload forward.FOURTH STAGE Men discovered that therollers became grooved withuse. They soon discovered thatthese deeper grooves allowedthe sledge to advance withgreater distance before thenext roller was needed tocome on!
WHEELFIFTH STAGE The roller wherechanged into wheels. The first wooden cartswhere made.SIXTH STAGE A slight improvementwas made to the cart. Axel were drilledthrough the frame ofthe cart. Axel and wheel wereseparated.
WHEEL Today we see that the wheel has gone a great transformation from asimple one made of wood to the pneumatic rubber tyres that we seeon vehicles today. The wheel is probably the most important mechanical inventions ofall times. Nearly every machine built since the beginning of the industrialrevolution has or needs wheels. Its hard to imagine any mechanized system that would be possiblewithout the wheel. From tiny match gears to automobiles, jet engines and computer diskdrives the principle is same.
TRANSPORT It is themovement ofpeople, cattle, animals and goodsfrom one locationto another.
TRANSPORT• It is the mostcommon way oftransport inolden days.• It is the leastexpensive way oftransport.
TRANSPORTAn engine ormotor is amachine designedto convert energyinto usefulmechanicalmotion.
TRANSPORT Ship transport iswatercraftcarrying people ,passengers orgoods. Sea transporthas been thelargest carrier ofgoods and peoplethroughoutrecorded history.
TRANSPORT• Airline transportis aircraft carryingpeople ,passengers orgoods.• It is expensivethan sea linetransport.• Airline transportis the fastest modeof transport.
CIRCUITSo An electrical circuit is a closed loop formed by a power source, wires, a fuse, aload, and a switch.o When the switch is turned on, the electrical circuit is complete and currentflows from the negative terminal of the power source, through the wire to theload, to the positive terminal.o Any device that consumes the energy flowing through a circuit and convertsthat energy into work is called a load.o A light bulb is one example of a load; it consumes the electricity from a circuitand converts it into work — heat and light.
The history of computer development is oftenreferred to in reference to the different generations ofcomputing devices. Each generation of computer is characterized by amajor technological development that fundamentallychanged the way computers operate, resulting inincreasingly smaller, cheaper, more powerful andmore efficient and reliable devices.
*First Generation (1940-1956)=Vacuum Tubes*The first computers used vacuumtubes for circuitry and magneticdrums for memory, and wereoften enormous, taking up entirerooms.*They were very expensive tooperate and in addition to usinga great deal ofelectricity, generated a lot ofheat, which was often the causeof malfunctions.
Transistors replaced vacuumtubes and ushered in the secondgeneration of computers. The transistor was invented in1947 but did not see widespreaduse in computers until the late1950s. The transistor was far superiorto the vacuum tube, allowingcomputers to become smaller,faster, cheaper, more energy-efficient and more reliable thantheir first-generationpredecessors.
The development of theintegrated circuit wasthe hallmark of the thirdgeneration ofcomputers. Transistors wereminiaturized and placedon silicon chips, calledsemiconductors, whichdrastically increased thespeed and efficiency ofcomputers.
• The microprocessor broughtthe fourth generation ofcomputers, as thousands ofintegrated circuits were builtonto a single silicon chip.• Microprocessors alsomoved out of the realm ofdesktop computers and intomany areas of life as moreand more everydayproducts began to usemicroprocessors.
o Fifth generation computing devices, based on artificialintelligence, are still in development, though there aresome applications, such as voice recognition, that arebeing used today.o The use of parallel processing and superconductors ishelping to make artificial intelligence a reality.o Quantum computation and molecular and nanotechnologywill radically change the face of computers in years tocome.o The goal of fifth-generation computing is to developdevices that respond to natural language input and arecapable of learning and self-organization.
Cell phone technology is based on RADIOtechnology and this was developed in1940. The first official cell was used by Swedenpolice in 1946 First Generation (1G) Second Generation (2G) Third Generation (3G) Forth Generation (4G)
First generation mobile had ability to transfercall from one place to another while traveling . The first cellular network of first generationwas launched in japan in the year 1979 . Second generation was launched in the early 90,s This generation phones had digital network . The second generation network provide internetand sums facilities .SECOND GENERATION (2G)
In third generation network it has high IP datanetwork and mobile broadband . Third generation network has high speedinternet , video calling and many more . Before the launch of 3G network it was told offourth generation . This network is faster than 3G network . The first to provide this service is Wi MAX inU.S .FOURTH GENERATION (4G)
• Medical equipment is designed to aid in the diagnosis,monitoring or treatment of medical conditions.• Biomedical Equipment Technician or BMET knows how tooperate on the equipments.• Classification:Diagnostic equipment, such as ultrasound, MRI.Therapeutic Equipment such as medical laser, infusionpumps.Medical monitors allow medical staff to measure apatients medical state.Medical laboratory equipment like DNA analysis.MEDICAL TECHNOLOGY
These are devices that constantly monitor certain vitalparameters of the human body such as pulse rate, heart beatetc.1950’s: Himmelstein and Scheiner invented the CardiotachoschopeThe Cardiotachoscope CRT view for ECG waveform. Alarm for high and low heart rates - Cardiophones. Heart rate indicator.With time, devices started integrating like : Defibrillator & Monitorwith Integrated Non-invasive Pacing.Physiological Monitors
Some Physiological MonitorsElectrodyne PM-65 Dallons Duo Trace Oscilloscope Burdick Memory MonitorSpacelabs PC Express
1733: First recorded blood pressure measurement by ReverendStephen Hales1847: Carl Ludwig’s Kymograph used catheters to inserted intoartery for blood pressure measurement.Blood Pressure Measurement and MonitorsKymograph• U shaped Manometer tube connectedto a brass pipe inserted into the artery• 1855: First non invasive method whichused inflatable cuffs•1896: The first sphygmomanometer wasinventedSphygmomanometer
1856: Kollicker and Mueller discovered the electrical activity of theheart when a frog sciatic nerve preparation fell onto an isolated frogheart and both muscles contracted synchronously.Augustus Waller came with the first systematic approach fromelectrical point of view.ElectrocardiographsCambridge VS4Cambridge Simplescribe
SECURITY IS THEPROTECTION OFINFORMATION ASSETSTHROUGH THE USE OFTECHNOLOGICALPROCESSES. IN ANCIENT TIMESTHERE WERE NOSECURITY SYSTEMSAS SUCH WHICH WEFIND IN TODAYSTECHNOLOGICALLIFESTYLES.
A GROWING BRANCH OFCCTV CAMERAS IS INTERNETPROTOCOL CAMERAS. IP CAMERAS USE THEINTERNET PROTOCOL USEDBY MOST LOCAL AREANETWORKS TO TRANSMITVIDEO ACROSS DATANETWORKS IN DIGITAL FORM. IP CAN BE TRANSMITTEDACROSS THE PUBLICINTERNET, ALLOWING USERSTO VIEW THEIR CAMERA.
BURGLAR ALARM ARESYSTEMS DESIGNED TODETECT UNAUTHORISEDENTRY INTO BUILDINGAREA. THEY CONSIST OF ANARRAY OF SENSORS, ACONTROL PANEL ANDALERTING SYSTEM ANDINTERCONNECTIONS. SENSORS DETECTINTRUDERS.
Many consumers areturning to wireless securitycameras for homesurveillance also. Wireless cameras donot require a video cablefor video/audiotransmission, simply acable for power. Wirelesscameras are also easy andinexpensive to install.
• A technology that grew out ofplasma welding in the 1960’semerged as a very productiveway to cut sheet metal andplate in the 1980’s.• It produced a cleaner edgethan oxy-fuel cutting.• In the 1990’s plasma cuttingmachines were given greaterflexibility to cut divert shapeson demand.PLASMA CUTTING
ELECTRICITY GENERATION• The fundamentalsprinciples of electricitygeneration werediscovered during the1820’s and early 1830’sby British scientistMichael faraday.• His basic method is stillused.• Electricity has beengenerated at centralstations since 1881with the use of coal,solar energy, tidalenergy, wind energyand geothermalsources.
LASER BRIDGE• The first laser bridge forembroidery machinery wasinvented and realized in1998 by “GMI S.R.L” ofVittorio Veneto(ITALY).• In 2010 “GMI” has reachedits third generation of laserbridge with moretechnologicallyadvancement offering new3D laser head technology.
FUTURE CAR Landstorm concept is a vehiclethat is designed forfuture, when airborne vehicleswill not be much effective toreach a particular area becauseof frequent natural disasterswhich is the result offuture global warming. It is equipped with a collectionof hidden gadgets orcompartments and the ability tointerchange the pods located onits back.
FUTURE LCD SCREEN Citizen Japan has unveiled a newLCD technology -- called "memoryliquid crystal" -- that retains theimage even when turned off. Basically, its inorganic membraneand angled orientation keep thecrystals frozen without needingpower. Practical applications wouldinclude watches and mobile phonedisplays.FUTURE
Robots that were developed asa means to enrich people’severyday lives have had somuch going on.They are morphing from simpleindustrial robots into intelligentservice providers through robottechnology convergence invaried areas such aseducation, medicalcare, silver, nationaldefence, construction andmaritime fields.
DRAWBACKS OF TECHNOLOGY0 Though we welcomethese blessing oftechnology we haveto consider the outerof the picture also .0 Man has not beenable to face theproblem created byinventions oftechnology and tostop the misuse orharmfulconsequences ofscientific inventions.
TECH-WARS0 Again technology has put inour hands such fiendishweapons as the nuclearbombs the guided missilesand means of chemical andbiological warfare .0 We are in danger ofdestroying ourselves withthese monstrous meanswhich ironically , are outown creations.
DRAWBACKS OF TECHNOLOGY0 Machine have made available toman plenty of leisure instead ofusing leisure for creation andrecreation man is misusing it toget cheap and vulgarentertainment which destroys hisphysical and mental health.0 Rightly used technology canbring heaven on earth wronglyused it can turn this earth intohell by destroying civilization.