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RadioShack is an American electronics retailer that started as an amateur radio mail-order business in 1921. It has undergone several ownership changes, bankruptcies, and restructurings, and now operates mainly online and through franchised stores.
The TRS-80 Model 4 is the last Z80-based home computer by Radio Shack, sold from 1983 to 1991. It has a faster CPU, larger display, bigger keyboard, and can run CP/M and TRSDOS, and has a task-switching program called DoubleDuty.
Tandy Corporation was a family-owned company that started as a leather supply store in 1919 and expanded into leathercraft, hobby, and electronics retail. It acquired RadioShack in 1963 and became one of the pioneers in the personal computer market, until it was renamed in 2000.
Learn how to add or update your payment method for AOL services, such as email, online storage, and more. Find out which cards and online services are accepted and how to avoid fees.
Find out how to manage your AOL account, including username, password, security, billing, and more. Get live support, tips, and guides for your AOL needs.
Learn about the history and features of the TRS-80 Color Computer, a series of home computers sold by Tandy Corporation from 1980 to 1991. The Color Computer, also known as CoCo, was a radical departure from the earlier TRS-80 models and used Motorola 6809E processor and MC6847 video display generator.
David J. Edmondson was born June 10, 1959, in Methuen, Massachusetts.His mother Jeannette was a homemaker, and his adoptive father was a US soldier. [citation needed] Like most children of military families, Edmondson moved a great deal throughout his early life, including periods in Germany and Fort Jackson, South Carolina, before settling at Fort Carson, Colorado, in 1968, where Edmondson ...
A red box is a phreaking device that generates tones to simulate inserting coins in pay phones, thus fooling the system into completing free calls.In the United States, a nickel is represented by one tone, a dime by two, and a quarter by a set of five.