**CIGAL Reference Manual, Chapter 4 (Variables): com2**
===== Com2 -- Integer variable controlling second serial I/O port =====
**usage:  Com2 = value**

COM1 and COM2 are integer variables controlling the operation of the two
asynchronous serial input/output ports on Macintosh or IBM type computers.
See [[jvs:cigal:manual:chapter4:com1|COM1(4)]] for details of how these flag variables work.

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:manual:chapter4|Variables List]], 
[[jvs:cigal:manual:help|Manual Help]]