Kinds of technology

Blackberry : is a line of mobile E-mail.
blackberry functions as a personal digital assistant whit address book, calendar, memopead and rask list capabilities.
blackberry has wi-fi connectivity.

Light bulb: in 1879, using lower current electricity, a smal carbonized filament, improved vacuumm inside the globe, thomas edison's was able to produce a reliable, long-lasting source of ligth.

X-ray: On 8 november, 1895, Wilhem conrad rontgen ( accidentally) discovered an image cast from cathode ray generator, projected far beyond the possible range of cathode rays.
a week after his discovery, rontgen took an x-ray photograph of his wife's hand wich clearly revelead her wedding ring and her bones.

Ipad: It is bigger than an iphone and smaller than a netbook, and it look like the king of technology.
The ipad is a touch screen tablet that allows users to browse the web, use e-mail, play music and games, store photos and watch videos, tv and movies.