| ISBN |
International Standard Book Number |
| ISC |
Instruction Set Computer |
| ISC |
Internet Service Center |
| ISCA |
International Symposium on Computer Architecture |
| ISCB |
Interessengemeinschaft sehgeschädigter Computerbenutzer |
| ISCSI |
Internet SCSI |
| ISD |
International Standard Data Network |
| ISD |
Instructional System Design |
| ISD |
Image Section Descriptor |
| ISDN |
Integrated Services Digital Network |
| ISDN |
Isosorbitdinitrat |
| ISFET |
Ionensensitiver Feldeffekttransitor |
| ISFT |
Industrial Siemens Flatpanel Technology |
| ISH |
Information Superhighway |
| ISI |
Information Society Index |
| ISI |
Information Sciences Institute of the University of Southern California |
| ISI |
Inter Symbol Interference |
| ISI |
Internally Specified Index |
| ISIN |
International Securities Identification Number |
| ISIS |
Industrial Signature Interoperability Specification |
| ISIS |
Intermediate System to Intermediate System Protocol (OSI) |
| ISL |
Intersatellite Link |
| ISL |
Interactive System Language |
| ISL |
Initial System Loader |
| ISL |
Imperceptible Structured Light |
| ISM |
Industrial, Scientific, Medical (Applications) |
| ISMS |
Information Security Management System |
| ISN |
Internet School/Shopping Networking |
| ISO |
International Standardization Organization |
| ISOC |
Internet Society |
| ISODE |
ISO Development Environment (OSI) |
| ISP |
Image Synthesis Processor |
| ISP |
International Standardized Profile |
| ISP |
Interrupt Stack Pointer |
| ISP |
Internet Service Provider |
| ISP |
Interrupt Status Port |
| ISPBX |
ISDN Private Branche Exchange |
| ISPF |
Interactive Structured Programming Facility (IBM) |
| ISPI |
Institut für Integrierte Publikationssysteme, Darmstadt |
| ISPLSI |
in-system-programmable LSI |
| ISPO |
Information Society Project Office |
| ISQIT |
Information Systems Quality Improvement Team |
| ISR |
Interrupt Service Routine |
| ISR |
Intermediate Session Routing |
| ISR |
Information Storage and Retrieval |
| ISRC |
International Standard Recording Code |
| ISRN |
International Standard Recording Number |
| ISSA |
Information Systems Security Association |
| ISSCC |
International Solid State Circuits Conference |
| ISSE |
Information Security Solutions Europe |