Similar to 回線交換
 - ISO 13407ISO 13407
 - ISO 13482
- ISO 31ISO 31
- ISO 31-1ISO 31-1
- ISO 31-2
 - ISO 3977ISO 3977
 - ISO/IEC 18033
- ISO/IEC 27000 シリーズISO/IEC 27000 family
 - ISO/IEC JTC 1/SC 17ISO/IEC JTC 1/SC 17
 - ISO/IEC JTC 1/SC 37ISO/IEC JTC 1/SC 37
 - Job Definition FormatJob Definition Format
 - JSTコネクタJST connector
 - Layout versus schematicLayout versus schematic
 - LFO (電子楽器)Low-frequency oscillation
- LHD (プラズマ装置)Large Helical Device
 - LIGALIGA
 - LMガイド
 - LpiLines per inch
 - Materials Transactions
 - ML-R
 - MobitexMobitex
 - Moving Picture Experts GroupMoving Picture Experts Group
 - N-STARcN-STAR c
 - NEMSNanoelectromechanical systems
 - NS-8000
 - NTT大容量方式Hicap
 - N型半導体N-type semiconductor
 - OTDROptical time-domain reflectometer