S-HTTP - Secure Hypertext Transfer Protocol

S/MIME - Secure Multipurpose Internet Mail Extension

S/N - Signal to Noise Ratio

S/WAN - Secure Wide Area Network

S2MP - Scalable Symmetric Multiprocessing

SA - Synchronous Allocation

SA - Source Address

SA - Structured Analysis

SA/SD - Structured Analysis / Structured Design

SAA - System Application Architecture

SAAL - Signaling ATM Adoption Layer

SAB - Segment Accessed Bit

SADT - Structured Analysis and Design Technique

SAE - Society of Automotive Engineers

SAF - Sequential Access File

SAFB - Store And Forward Buffer

SAFE - Security And Freedom through Encryption

SAG - SQL Access Group

SAINT - Symbolic Automatic Integrator

SAL - Shift Automatic Left

SAM - System Administration Manager

SAN - Stochastic Activity Networks

SAN - Storage Area Network

SAN - System Area Network

SANE - Standard Apple Numeric Environment