ADDS, or Applied Digital Data Systems was a subsidiary of NCR Corp which sold the Mentor 2000 professional computer in the United States in 1986. It ran at 5MHz using a Zilog processor, 640KB RAM, and included one 60MB hard disk. It used the "PICK" operating system and database management system. It was able to manage 16 or 32 video terminals at once.
ADDS was later sold to AT&T, then independent briefly before being acquired by SunRiver Data Systems.
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