 |  |  |
| R&D | Research and Development | 研究与发展 |
| RAID | Redundant Arrays of Inexpensive Disks | 廉价冗余磁盘阵列 |
| RAM | Random Access Memory | 随机存取存储器（内存） |
| RARP | Reverse Address Resolution Protocol | 逆向地址解析协议 |
| RDBMS | Relational DataBase Management System | 关系数据库管理系统 |
| RDF | Resource Description Framework | 资源描述结构 |
| RFC | Request For Comments | 请求评议（文档） |
| RGB | Red Green Blue | 红绿蓝 |
| RISC | Reduced Instruction Set Computer | 精简指令集计算机 |
| RJ | Registered Jack | 标准插座 |
| ROM | Read Only Memory | 只读存储器 |
| RPG | Roles Play Games | 角色扮演游戏 |
| RTS | Request To Send | 发送请求 |
