CPE Dictionary: 1  Official CPE Dictionary v2.3 - 35.72MB, Updated: 9/2/2017 12:00:00 AM EST - gz format, zip format. 2  Official CPE Dictionary v2.2 - 37.26MB, Updated: 9/2/2017 12:00:00 AM EST - gz format, zip format. 3  CPE Dictionary Search. 4  CPE Dictionary Growth Statistics.
A transistor radio is a small portable radio receiver that uses transistor-based circuitry. Following their development in 1954, made possible by the invention of the transistor in 1947, they became the most popular electronic communication device in history, with billions manufactured during the 1960s and 1970s.
The telephone beeper or pager was invented in 1949 by Al Gros and in Jewish Hospital in New York it was first used.Until 1958, it was not approved for public use by FCC. In 1959, it was first named as pager by Motorola when the personal radio communications product was made by them.In the year 1974, the Motorolaâs Pageboy 1 was introduced which was the first pager to be consumer successful.n 1959, it was first named as pager by Motorola when the personal radio communications product was made by them. In the year 1974, the Motorolaâs Pageboy 1 was introduced which was the first pager to be consumer successful.