| ATM | Asynchronous Transfer Mode |
| ANSI | American National Standards Institute |
| ASCII | American Standard Code for Information Interchange |
| AWG | American Wire Gauge |
| BPS | Bits Per Second |
| CSA | Canadian Standards Association |
| CPU | Central Processing Unit |
| dB | Decibel |
| DBS | Direct Broadcast Satellite |
| DHCP | Dynamic Host Configuration Protocol |
| DNS | Domain Name System |
| DSL | Digital Subscriber Line |
| DSS | Digital Satellite System |
| DVD | Digital Video Disc |
| EIA | Electronic Industries Alliance |
| FCC | Federal Communications Commission |
| FTP | File Transfer Protocol |
| HTTP | Hypertext Transfer Protocol |
| HVAC | Heating, Ventilation, and Air Conditioning |
| Hz | Hertz |
| IEEE | Institute of Electrical and Electronic Engineers |
| IP | Internet Protocol |
| ISDN | Integrated Services Digital Network |
| ISO | International Standards Organization |
| ISP | Internet Service Provider |
| LAN | Local Area Network |
| LED | Light Emitting Diode |
| Mb/s | Megabits per second |
| Mhz | Megahertz |
| NEC | National Electrical Code |
| NEMA | National Electrical Manufacturers Association |
| NFPA | National Fire Protection Association |
| OS | Operating System |
| PBX | Private branch exchange |
| PCI | Perpherial Component Interface |
| PDA | Personal Digital Assistant |
| PDF | Portable Document Format |
| SCSI | Small Computer System Interface |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
| TIA | Telecommunications Industry Association |
| UL | Underwriters Laboratories |
| UPS | Un-interruptible Power Supply |
| URL | Uniform Resource Locator |
| USB | Universal Serial Bus |
| UTP | Unshielded Twisted-Pair |
| WWW | World Wide Web |
