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Electricity
Since electricity is a natural force that exists in our world, it didn't have to be invented. It did, however, have to be discovered and understood. Most people give credit to Benjamin Franklin for discovering electricity. Benjamin Franklin had one of the greatest scientific minds of his time. -
Direct Distance dialing
Direct distance dialing is a telecommunication service feature in North America by which a caller may, without operator assistance, call any other user outside the local calling area. 1 disadvantage is that you cant long-distance call. -
The laser
laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. The emission generally covers an extremely limited range of visible, infrared, or ultraviolet wavelengths. -
Telstar the first commercial satellite
Telstar 1 was a communications satellite launched by NASA on July 10, 1962, it was the satellite that allowed the first live broadcast of television images between the United States and Europe. 1 advantage is it successfully relayed through space the first television pictures, telephone calls, and telegraph images, and provided the first live transatlantic television feed. -
BASIC
BASIC is a family of general-purpose, high-level programming languages designed for ease of use. The original version was created by John G. Kemeny, Thomas E. Kurtz and Mary Kenneth Keller at Dartmouth College in 1964. They wanted to enable students in non-scientific fields to use computers. 1 advantage is that it can be learnt very quickly and programs written within one or two days of practice. -
DRAM
Dynamic random-access memory is a type of random-access semiconductor memory that stores each bit of data in a memory cell, usually consisting of a tiny capacitor and a transistor, both typically based on metal-oxide-semiconductor technology. -
UNIX
Unix is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. 1 disadvantage is its emphasis on concise output can also be confusing or intimidating for new users. -
Internet
Information technology takes various forms from databases and communications software to computer networks and Personal Digital Assistants. The Internet is a widely distributed network of computer servers, which allow users to communicate and exchange data.