70's inventions timeline.

Invented by Intel engineers Federico Faggin, Marcian E. (Ted) Hoff and Stan Mazor. This invention would go on to earn them the National Medal of Technology and Innovation by US President Barack Obama (Oct, 2015). The Intel® 4004 became the first general-purpose programmable processor on the market—a "building block" that engineers could purchase and then customize with software to perform different functions in a wide variety of electronic devices.

Invented by Martin Cooper for Motorola. After his invention Mr. Cooper called their rival company Bell Labs. to informed they were talking thru a mobile.
The Motorola DynaTAC 8000x weighed almost two and a half pounds and was a little over a foot in length. You could call up a friend and talk with them for 30 minutes, but it would take 10 hours to charge. It took an entire decade before this phone was sold as the first commercial handheld cellular phone in 1983.

Created in December 1975 by an engineer at Eastman Kodak named Steve Sasson. The 8 pound camera recorded 0.01 megapixel black and white photos to a cassette tape. The first photograph took 23 seconds to create. To play back images, data was read from the tape and then displayed on a television set.

Designed primarily by Steve Wozniak, went on sale on June 10, 1977; its an 8-bit home computer and one of the world's first highly successful mass-produced microcomputer products. It was known as "the people's computer" because it made using computers easy for the general public.

There’s controversy about who the inventor is. Ray Tomlinson, created text-based messaging between company computers through the network ARPANET In 1971 by using the “@” symbol to route messages. Meanwhile, V.A. Shiva Ayyadurai built an electronic messaging platform in 1978 when he was 14 years old, basing it off the internal communication system at the University of Medicine and Dentistry in Newark, NJ, where he was a research fellow. In 1982, he was awarded the copyright for “EMAIL.”