| 100% | SERVO | 5 | Electronic control system |
| 100% | SERVOS | 6 | Electronic control systems |
| 93% | SERVO | 5 | Electronic control system, briefly |
| 91% | SERVO | 5 | Electronic control system, for short |
| 64% | CAPANDTRADE | 11 | Pollution control system |
| 64% | CAPANDTRADE | 11 | Polluton control system |
| 62% | SERVOS | 6 | Control systems |
| 61% | SERVO | 5 | Electronic control mechanism |
| 61% | USENET | 6 | Electronic newsgroup system |
| 56% | HVAC | 4 | Temperature control system (Abbr.) |
| 55% | INCS | 4 | Integrated Network Control System, initialism |
| 53% | OLFACTORY | 9 | System that controls smell |
| 52% | AUTOPILOT | 9 | "Hands-off" control system on an aircraft |
| 52% | CYBERNETICS | 11 | Science of communications and automatic control systems |
| 52% | TRAC | 4 | Control ___ (four-wheel-drive system) |
| 52% | SMARTHOME | 9 | Residence with lots of remotely controlled systems |
| 52% | FADER | 5 | Sound system control |
| 52% | DIAL | 4 | Stereo system control |
| 51% | AUTOPILOT | 9 | System that helps control the aircraft |
| 50% | WIRED | 5 | Connected to electronic system |
| 50% | IDRIVE | 6 | BMW computer system control |
| 50% | DATA | 4 | Perot's Electronic Systems |
| 49% | EZPASS | 6 | Electronic toll-collecting system in the Northeast |
| 49% | TELEGRAPH | 9 | First electronic message-sending system |
| 48% | MRP | 3 | System relating to control of inventory, for short |
| 47% | PDR | 3 | Bk. in electronic health record systems |
| 47% | WII | 3 | Nintendo game system with motion controls |
| 47% | FIREWALL | 8 | Digital security system, controls user behavior |
| 47% | BRAIN | 5 | Organ that controls the nervous system |
| 47% | EZPASS | 6 | Electronic toll collection system in the Eastern US: Hyph. |