Common Communications Services (CCS)
Common Communications Services defined the methods by which hetrogeneous systems communicated. CCS depended on Advanced Program-to-Program Communications, also known as APPC or LU6.2, Systems Network Architecture (SNA) PU2.1 or Low Entry Networking for peer to peer networking, and SNA Management Services for network control.
Three types of data links were supported:
- Synchronous Data Link Control (SDLC) high speed wide area networks.
- X.25 packet-switched networks.
- Token ring local area networks (LAN).
CCS supported IBM 3270 data streams, mainly for existing devices. Document Content Architecture specified a format for documents to be exchanged among different word processors and other software. Intelligent Printer Data Stream (IPDS) was a page description language like Xerox Interpress or Adobe PostScript. Application services were provided by SNA Distribution Services (SNADS) for store and forward document transmission, Document Interchange Architecture (DIA) for electronic mail, and Distributed Data Management for file sharing.
Read more about this topic: IBM Systems Application Architecture
Famous quotes containing the words services and/or common:
“We now in the United States have more security guards for the rich than we have police services for the poor districts. If you’re looking for personal security, far better to move to the suburbs than to pay taxes in New York.”
—John Kenneth Galbraith (b. 1908)
“Just as language has no longer anything in common with the thing it names, so the movements of most of the people who live in cities have lost their connexion with the earth; they hang, as it were, in the air, hover in all directions, and find no place where they can settle.”
—Rainer Maria Rilke (1875–1926)