 |  |  |
| SCSI | Small Computer System Interface | 小型计算机系统接口 |
| SDK | Software Development Kit | 软件开发工具包 |
| SDRAM | Synchronous Dynamic Random Access Memory | 同步动态随机存取存储器（同步内存） |
| SET | Secure Electronic Transaction | 安全电子交易 |
| SGML | Standard Generalized Makeup Language | 标准普及标识语言 |
| SHTTP | Secure Hyper Text Transfer Protocol | 安全超文本传送协议 |
| SIMM | Single In-Line Memory Module | （72线内存插槽） |
| SLIP | Serial Line Interface Protocol | 串列线接口协议 |
| SMDS | Switched Multimegabit Data Service | 多兆位数据交换业务 |
| SMIL | Synchronize Multimedia Integration Language | 同步多媒体集成语言 |
| SMP | Symmetric MultiProcessing | 对称多任务处理 |
| SMTP | Simple Mail Transfer Protocol | 简单邮件传输协议 |
| SNMP | Simple Network Management Protocol | 简单网络管理协议 |
| SOHO | Small Office / Home Office | 小型／家庭办公 |
| SPP | Standard Parallel Port | 标准并行端口 |
| SQL | Structured Query Language | 结构化查询语言 |
| SRAM | Static Random Access Memory | 静态随机存取存储器 |
| SSD | Solid-State Disk | 固态盘 |
| SSL | Secure Sockets Layer | 安全套层 |
| STD | Suspend to Disk | 悬挂于磁盘 |
| STP | Shielded Twisted Pair | 屏蔽双绞线 |
| STR | Suspend to Ram | 悬挂于内存 |
| SVGA | Super Video Graphics Array | 超级影像阵列 |
