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Young man with laptop sitting on steps
Alternating current generatorantique illustration of alternating generator, Electric rotary machine
Magneto-electric machineHefner - Alteneck -Siemens, 1873
Electromotive drive, drilling machineAntique illustration of a Electromotive drive, drilling machine
Electro-magnetic machineAntique illustration of a Electro-magnetic machine
Gramme 1870Electric generator (Dynamo), Gramme 1870
Pacinotti dynamo, 1860Antique illustration of a Pacinotti dynamo, 1860
Morse Recording TelegraphVintage engraving of a Morse Recording Telegraph
Oerlikon machine
Kummer & Co. electro-magnetic machine
Computer processing unit socket
Illustration of fluorescent lamp
Illustration of how a oscilloscope works
Illustration of television and video recorder on simple stand
Illustration of cross-section through metal wire, electrons flowing from negative charge to positive charge
Illustration of radio signal being transmitted to receiver
Illustration of a switch showing the inside mechanism
Senior woman with netbook and headset lying in a hammock
Woman at a laptop
Lying young woman listening to music with MP3 player and headphones
Young woman lying on a sofa with an MP3 player, listening to music through headphones
Small umbrella on a hard drive, symbolic image for data protection
Young woman using a keyboard
Young woman seen through the display of a computer while using the keyboard
Student holding a laptop computer, smiling
Cabling and jacks on an internet server