Apple and in second place behind IBM. In 1982, Tandy Corporation entered into a development contract with Oklahoma-based software company, Dorsett Educational Systems, Inc, known for its 25 years pioneering educational technology. The deal resulted in dozens of titles being released for the TRS-80 Color Computer. Radio Shack stores sold TRS-80 computers with other products, while Radio Shack Computer Centers only sold computers. Non-company-owned franchises sold Radio Shack products, including computers, and non-Radio Shack items. Value-added resellers distributed relabelled versions of Tandy computers. Despite selling computers through old-fashioned, department-store-like Sunday-newspaper inserts that emphasized price instead of technology and functionality, by 1980 InfoWorld described Radio Shack as "the dominant supplier of small computers". and in 1981 "one of the best marketers in the computer industry". Adam Osborne that year described Tandy as "one of the great enigmas of the industry." He wrote of his amazement that a company "with so few roots in microcomputing" was the "number-one microcomputer manufacturer" while "selling computers out of Radio Shack stores, no less?" Green suggested in 1982 that stores separate computers from toys to convince "middle-income (-class) customers that Radio Shack stores are not primarily dealers in schlock for the unwary lower-income people". A BYTE reviewer admitted in 1983 that he at first dismissed the Model 100 "as a toy" because he saw it in a store next to a radio-controlled car, stating that "it's too bad that Radio Shack is associated with toys and CB radio" when the computer "shows tremendous planning and foresight". In 1984, a sell-side analyst stated that Tandy had an "Impressive product line, magnificent distribution capability, control of the whole process from manufacturing through distribution, and a reasonably nimble management that is willing to move with the product cycle". That year, Tandy was the leading Unix vendor by volume, selling almost 40,000 units of the 68000-based, multiuser Tandy Model 16 with Xenix, and began selling all computers using the Tandy brand because, an executive admitted, "we were told by customers that the Radio Shack name was a problem in the office". In the mid-1980s, it began selling peripherals compatible with non-Tandy products such as the IBM PC. The company also mandated in 1986 an IBM-like dress code for store employees. In 1987, BYTE wrote that "Tandy might now be offering the most extensive lines of computer products in the world", including the $99 Color Computer 2, $499 Model 102 notebook,