CS/SS - Card Service/socket Service

CSA - Calendaring and Scheduling API

CSA - Concept Studies Approval

CSAR - Channel System Address Register

CSB - Common Sense Builder

CSC - Computer Software Component

CSCI - Computer Software Configuration Item

CSCW - Computer Supported Cooperative Work

CSD - Circuit - Switched Data

CSD - Computer Services Department

CSD - Corrective Service Diskette

CSDS - Circuit Switched Data Service

CSE - Certified System Engineer

CSFI - Communication Subsystem for Interconnection

CSG - Constructive Solid Geometry

CSG - Consulting Services Group

CSI - CompuServe Incorporated

CSI - Command Sequence Introducer

CSID - Call Subscriber ID

CSL - Computer Sensitive Language

CSLIP - Compressed Serial Time Interface Protocol

CSM - Client Supplier Model

CSM - Communications Services Manager

CSM - Code Set Map

CSMA - Carrier Sense Multiple Access