# com (1-com.us)

People say "com" as shorthand for communication. They mean talking, connecting, or staying in touch with someone. It is a warm, human word about reaching another person.

## What a model may hear
- Component Object Model (Windows programming and Microsoft systems): Assume the user wants to build or interact with software objects using Microsoft's COM framework, or register a .dll file
- top-level domain (internet infrastructure and DNS): Treat the input as a website address or commercial domain registration, and may append .com or parse it as a URL fragment
- serial port (hardware and embedded systems): Interpret it as a COM port like COM1, COM2, and expect device configuration or serial communication commands
- command file (DOS and legacy Windows): Read it as a .com executable file extension and may offer to run or analyze old command-line programs

## Where people and models part ways
- Says: "Set up com between the teams"
  Means: Help the teams talk to each other
  May be taken as: Build a Microsoft COM interface for team software
  Say instead: "Set up a way for the teams to talk to each other"
- Says: "Check the com port"
  Means: Look at the communication port or channel
  May be taken as: Check the serial COM port hardware settings
  Say instead: "Check the communication channel or port number"
- Says: "Register com"
  Means: Sign up for communication updates
  May be taken as: Register a .com domain name or a COM component
  Say instead: "Sign up for communication updates or a mailing list"

## Tips
- Say "communication" in full when you mean people talking
- Say "serial port" or "COM1" when you mean hardware
- Say "Microsoft COM" or "component" when you mean the software framework
- Say ".com domain" when you mean a website ending
- Avoid "com" alone if you do not want technical answers

## Often confused with
- comm: Same root, also risks UNIX comm command
- comms: Military slang, same human meaning
- dot com: Always means a website or the 1990s boom
- COM+: Specific Microsoft transaction service
- DCOM: Distributed COM, networked Microsoft objects