NOS (Network Operating System)

Software that provides a local area network (LAN) with multi-

user, multitasking capabilities, facilitates communications and resource sharing, and thereby provides the basic framework for LAN operation.The NOS comprises modules distributed throughout the LAN, with some residing in the servers and others in the clients. See also client, client/server, LAN, and server.

• cell transfer delay (CTD)
• Cellular Digital Packet Data (CDPD)
• cellular radio
• CELP (Code Excited Linear Prediction)
• CEN
• CENELEC
• centimeter (cm)
• centralized attendant service (CAS)
• central office (CO)
• central office exchange code
• central office exchange (COE)
• central office prefix
• central processing unit (CPU)
• Centrex (CTX)
• centum call seconds (CCS)
• CEPT
• CEPT-1
• CEPT (Conférence Européenne des administrations des Postes et des Télécommunications)
• Cerberus
• CER (Cell Error Ratio)
• CERN
• CERN (l’Conseil Européen pour la Recherche Nucléaire)
• CERN (l’Conseil Européen pour la Recherche Nucléaire)
• CERT
• CERT (Computer Emergency Response Team)