System V, Champion System (equip ciclista), Sega Master System, System 7, Star system, System of a Down, IBM System/370, IBM System/360, IBM System/34, 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, TELE System, Mainichi Broadcasting System, Fox System, Arquitectura IBM System/360, System beat, Wide Area Augmentation System, Nintendo Entertainment System, IBM System/32, IBM System/3, BAE Systems, Automatic warning system, Unity Operating System, Sound system, One Way System, Integrated Systems Europe, Seoul Broadcasting System, Korean Broadcasting System, KDE System Guard, System of a Down (àlbum), Amazon Elastic File System, Google File System, Tokyo Broadcasting System

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

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