Interior of circular concourse and roof of the spectacular new Shanghai South Railway Station in 2007, Shanghai, China, Asia

Students at a computer demonstration in a class at a rural school, China, Asia

The boy is the patient on reception at doctor ophthalmologist. Diagnostic ophthalmologic equipment. Medicine concept.

The boy is the patient on reception at doctor ophthalmologist. Diagnostic ophthalmologic equipment. Medicine concept.

Close up EKG monitor in icu room.

Airshow flight tracking display aboard Lufthansa Airbus A340-600, above Chile, South America, America

Control room for surveillance cameras in a departement store

Online Shopping ? AMAZON.DE

Notebook

Notebook ? iTunes

Residents rally at City Hall, asking that the city establish a citizens review board to monitor the police and increase the police force's diversity, Hamtramck, Michigan, USA

Online shopping

Screen with display smoking ban in Arabic and English on backrest in aircraft, Emirates airline, interior, Dubai, United Arab Emirates, Asia

Happy doctor showing cell phone screen to camera. Smiling doctor showing cell phone screen pointing finger isolated

Depature Board at Terminal 1, Airport, Frankfurt, Hesse, Germany

Depature Board at Terminal 1, Airport, Frankfurt, Hesse, Germany

Depature Board at Terminal 1, Airport, Frankfurt, Hesse, Germany

Blood pressure monitor on a man's trading joint against a yellow background, top view

Display board at an airport with cancelled flights

Depature Board at Terminal 1, Airport, Frankfurt, Hesse, Germany

IPod held by a hand as an audio guide, Malbork Castle, Malbork, Pomerania, Poland, Europe

Screen showing the flight position Dubai at seat in aircraft, Emirates airline, interior view, Dubai, United Arab Emirates, Asia

Global positioning system on map

Airport arrival and departure information monitors