Comment Structured Query Language (Score 1) 188
SQL (who the hell knows what this is?).
SQL is Structured Query Language, an ISO standard since the 1980s. "Microsoft SQL Server" is as generic after the first word as "Windows Media Player". Other well-known products implementing subsets of the same standard have names like "SQLite", "MySQL", "PostgreSQL", and "ORACLE Database" (allegedly standing for "One Rich Aristocrat Called Larry Ellison").
Janus, Snowball, O'Hare, Memphis, Daytona, Cairo*, Whistler*, Longhorn, Vienna.
Codenames like these were not intended for use by the general public. For example, Whistler was renamed to "Windows XP" and Longhorn to "Windows Vista" before the release candidate stage.