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magnetic strip reader
it can read your card by turning the coad of the card to magnetic coad. -
sensor
In 1972, Art and Bill Hare founded National Semiconductor's transducer operation without Fairchild's blessings. -
laser jet printer
IBM introduces the IBM 3800 laser printer, capable of printing 20,000 lines per minute. -
over head projector
Also called a "viewgraph," the overhead projector was created by Jules Duboscq, a French inventor, in the 1870s. -
PDA
it was a touch screan device, that you use to orginise you self. it stands for personal digital assistant. -
zip disk
The format became the most popular of the superfloppy products which filled a niche in the late 1990s portable storage market -
camera phone
Compared to digital cameras of the 1990s, a consumer-viable camera in a mobile phone would require far less power and a higher level of camera electronics integration to permit the miniaturization -
smart phone
hewlett packard reliced the OmniGo 700LX, which was the first smartphone reliced. As it works as a phone and it has intergrated tecnoligy -
blue ray player
it aperared gobally in 2006. The Blu-ray Disc specification was officially announced in February 2002. Blu-ray Disc recorders were first launched in Japan in 2003 -
apple ipad
steve jobs came up with the idear in 2007, larnched it in 2010.
it has a touch screan.