IT Defined Essay
Information technology includes computers, networks, satellite communications, robotics, videotext, cable television, electronic mail ("e-mail"), electronic games, and automated office equipment. The information industry consists of all computer, communications, and electronics-related organizations, including hardware, …show more content…
Since then, four generations of computers have evolved. Each generation represented a step that was characterized by hardware of decreased size and increased capabilities. The first generation used vacuum tubes, the second transistors, and the third integrated circuits. The fourth (and current) generation uses more complex systems such as Very-large-scale integration or System-on-a-chip.
Mobile rigs were the beginning of mobile phones for use in vehicles such as taxicab radios, two way radios in police cruisers, and the like. A large community of mobile radio users, known as the mobileers, popularized the technology that would eventually give way to the mobile phone. The concept of using hexagonal cells for mobile phone base stations was invented in 1947 by Bell Labs engineers at AT&T and was further developed by Bell Labs during the 1960s.
One of the first truly successful public commercial mobile phone networks was the ARP network in Finland, launched in 1971.The first hand held mobile phone to become commercially available was the Motorola DynaTAC 8000X, which received approval in 1983. Until the late 1980s, most mobile phones were too large to be carried in a jacket pocket, so they were usually permanently installed in vehicles as car phones. With the