Microsoft has preferred to tout a DOS-based system called Windows, arguing that it is a mistake to devote resources to the current OS/2 when a tremendously more powerful version has been promised for next year.
Outside the valid range of Big5, the old DOS-based systems would routinely interpret things according to the SBCS that is paired with Big5 on that system.
The development and proliferation of personal computers using the CP/M operating system in the late 1970s, and later DOS-based systems starting in 1981, meant that many sites grew to dozens or even hundreds of computers.
However, in old DOS-based systems, Code Page 437-with its extra special symbols in the control code area including position 127-was much more common.
A device file is a reserved keyword used in DOS and DOS-based systems to allow access to certain ports and devices.
Later a few DOS-based system were implemented that could pull reports and do calculations.
Initially, the first products were DOS-based systems, designed for each client.
This new system replaced VideoMinder, a then DOS-based system once used by Blockbuster and some older Video Ezy franchisees.
Graphics screen capture is not a native capability of DOS-based systems, hence there was a need for third-party programs such as HiJaak.
The 1980s brought a wave of high-technology startups, creating software such as Visicalc and Lotus 1-2-3, and advanced computers, but many of these companies fell into decline with the fall of the minicomputer and DOS-based systems.