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Television
Televisions have become an essential part of our lives. They have become so common that we have forgotten how all this began. It was not all colourful and crispy from the start. Initial days of television had a limited number of channels whereas now we have a plethora of high-definition channels along with apps that can be directly installed on our TVs. -
Computer
We could argue that the first computer was the abacus or its descendant, the slide rule, invented by William Oughtred in 1622. But the first computer resembling today's modern machines was the Analytical Engine, a device conceived and designed by British mathematician Charles Babbage between 1833 and 1871. -
Telegraph
When British officials wished to communicate between London and the naval base at Portsmouth in the early 1800s, they utilized a system called a semaphore chain. A series of towers built on high points of land held contraptions with shutters, and men working the shutters could flash signals from tower to tower. -
Telephone
It was at this time, 1876–1877, that a new invention called the telephone emerged. It is not easy to determine who the inventor was. Both Alexander Graham Bell and Elisha Gray submitted independent patent applications concerning telephones to the patent office in Washington on February 14, 1876. -
Radio
The invention of radio communication, although generally attributed to Guglielmo Marconi in the 1890s,[1] spanned many decades and involved many people, whose work included experimental investigation of radio waves, establishment of theoretical underpinnings, engineering and technical developments, and adaptation to signaling. -
Mobile Phone
The first mobile phone call was made 40 years today, on April 3, 1973, by Motorola employee Martin Cooper. Using a prototype of what would become the Motorola DynaTAC 8000x, the world's first commercial cell phone, Cooper stood near a 900 MHz base station on Sixth Avenue, between 53rd and 54th Streets, in New York City and placed a call to the headquarters of Bell Labs in New Jersey. -
Tablet
The Dynabook (1968) You could say that the idea for a tablet computer was born back in the 1960s. When Alan Kay and his colleagues at the Xerox Palo Alto Research Centre dreamt up the Dynabook, they envisaged a portable tablet-style device that would primarily serve to give children easy access to any digital media.