System V, Champion System (equip ciclista), Sega Master System, System 7, Star system, System of a Down, IBM System/370, IBM System/34, IBM System/360, IBM System/36, Unix File System, Orxata Sound System, Famicom Disk System, System 6, Ed’ System ZVVZ, IBM System/390, Arc System Works, Mobile Servicing System, IBM System/38, Fox System, Mainichi Broadcasting System, TELE System, Arquitectura IBM System/360, Wide Area Augmentation System, System beat, Nintendo Entertainment System, Automatic warning system, IBM System/32, Unity Operating System, BAE Systems, IBM System/3, Seoul Broadcasting System, Sound system, One Way System, Integrated Systems Europe, Korean Broadcasting System, System of a Down (àlbum), KDE System Guard, Tokyo Broadcasting System, Columbia Broadcasting System, Amazon Elastic File System

Google File System, Androgynous Peripheral Attach System, Studio system, Infinity Systems, Nintendo Classic Mini: Super Nintendo Entertainment System, Scandinavian Airlines System, Domain Name System, Disk Operating System, Achilifunk Sound System, Sistema de càmeres 3D Fusion, Space Launch System, Sysop, Combined Charging System, Common Unix Printing System, IBM System/23 Datamaster, Video System, Building Management System, Joint Expert Speciation System, Dream Chaser, Robot Operating System, Network File System, Handle System, Radio Bemba Sound System, Domain Name System Security Extensions, Titan Saturn System Mission, Nintendo Classic Mini: Nintendo Entertainment System, GNU build system, Interplanetary Transport System, Compatible Time-Sharing System, JPL Horizons On-Line Ephemeris System, Système de la nature, BBC Microcomputer System, SoC, Systema Naturae, Crida de sistema, Natural Color System, Système U (equip ciclista), Facial Action Coding System, IBM System/4 Pi, THE multiprogramming system, System on module, GuixSD, Global Forecast System, Ciència del sistema Terra, Phonak (equip ciclista), American Society of Health-System Pharmacists, European Nature Information System, Advanced Photo System, Sistema virtual de fitxers, Advanced Mobile Telephone System

System V, Champion System (equip ciclista), Sega Master System, System 7, Star system, System of a Down, IBM System/370, IBM System/34, IBM System/360, IBM System/36, Unix File System, Orxata Sound System, Famicom Disk System, System 6, Ed’ System ZVVZ, IBM System/390, Arc System Works, Mobile Servicing System, IBM System/38, Fox System, Mainichi Broadcasting System, TELE System, Arquitectura IBM System/360, Wide Area Augmentation System, System beat, Nintendo Entertainment System, Automatic warning system, IBM System/32, Unity Operating System, BAE Systems, IBM System/3, Seoul Broadcasting System, Sound system, One Way System, Integrated Systems Europe, Korean Broadcasting System, System of a Down (àlbum), KDE System Guard, Tokyo Broadcasting System, Columbia Broadcasting System, Amazon Elastic File System, Google File System, Androgynous Peripheral Attach System, Studio system, Infinity Systems, Nintendo Classic Mini: Super Nintendo Entertainment System, Scandinavian Airlines System, Domain Name System, Disk Operating System, Achilifunk Sound System, Sistema de càmeres 3D Fusion, Space Launch System, Sysop, Combined Charging System, Common Unix Printing System, IBM System/23 Datamaster, Video System, Building Management System, Joint Expert Speciation System, Dream Chaser, Robot Operating System, Network File System, Handle System, Radio Bemba Sound System, Domain Name System Security Extensions, Titan Saturn System Mission, Nintendo Classic Mini: Nintendo Entertainment System, GNU build system, Interplanetary Transport System, Compatible Time-Sharing System, JPL Horizons On-Line Ephemeris System, Système de la nature, BBC Microcomputer System, SoC, Systema Naturae, Crida de sistema, Natural Color System, Système U (equip ciclista), Facial Action Coding System, IBM System/4 Pi, THE multiprogramming system, System on module, GuixSD, Global Forecast System, Ciència del sistema Terra, Phonak (equip ciclista), American Society of Health-System Pharmacists, European Nature Information System, Advanced Photo System, Sistema virtual de fitxers, Advanced Mobile Telephone System, Journaling file system, SystemC, Unified Medical Language System, El meu sistema, Integrated Forecast System, Planetary Data System, Sistema Dahlgren, CVS, Radio Data System, InterPlanetary File System, Simple Knowledge Organization System, Futur Sistema Aeri de Combat, System in package, Equilibri del sistema, A New System of Chemical Philosophy, X Window System, Advanced Systems Format, Massilia Sound System, Sistema de Dades Astrofísiques, Universal Mobile Telecommunications System, Systema Vegetabilium, Elbit Systems, SystemVerilog, Multi Calibre Individual Weapon System, Fuller Micro Systems, Sistema glioxalasa, AMPS, Systema Mycologicum, Dassault Systèmes, System Architecture Evolution, Sistema de tauler d'anuncis, Sistema Integrat d'Informació Taxonòmica, Soltam Systems, Model de preservació OAIS, Quasi-Zenith Satellite System, New Technology File System, Advanced Access Content System, International English Language Testing System, IBM Personal System/2, Intelligent Systems, T-Systems, IAR Systems, Sistema Internacional de Referència Celeste, Cadence Design Systems, EJSM/Laplace, Sistema global per a comunicacions mòbils, Sistema operatiu de Hollywood, SCSI, FITS, Sistema sociotècnic, European Data Relay Satellite, DAS, Sistema de gestió de bateries, Open Artwork System Interchange Standard, Sistema Europeu de Transferència de Crèdits, Beidou, Sistema de navegació inercial, Rafael Guastavino i Moreno, Wideband Global SATCOM, TAG Systems