Glossary Terms - X

X Recommendations (X Recommendations)
The CCITT documents that describe data communication network standards. Well-known ones include: X.25 Packet Switching standard, X.400 Message Handling System, and X.500 Directory Services. [Source: RFC 1208]
X/Open (X/Open)
A group of computer manufacturers that promotes the development of portable applications based on UNIX. They publish a document called the X/Open Portability Guide. [Source: RFC 1208]

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