COM1


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Related to COM1: LPT1

COM1

In a PC, the name assigned to the first serial port. The second is COM2, etc. PCs are typically designed to support up to four serial ports. On earlier PCs, two external serial ports were provided to connect a mouse and modem. On newer PCs, there is often only one external serial port as mice use a separate PS/2 port, and modems are generally built in and use an internal serial port. The term originated before the days of the mouse, when the serial port was primarily used for modem COM-munications. Contrast with LPT1.
References in periodicals archive ?
Table 1 Factor Loadings for the SDS Corrected Alpha Factor Item-Total If Item Variable Item Wording Loading Correlation Deleted COM1 I am committed to seeing that our organizational strategy is effectively implemented .
Thus, the COMMON-block COM1 containing XNORM is included in the declaration.
The previous commitment decision was added to the subsequent hierarchical regression in step three to control for the effect of previous commitment on the current decision to commit; COM1 became an independent variable in the multiple regression when COM2 was the dependent variable, etc.
As variaveis sugeridas para descarte, em ordem de menor importancia para explicar a variancia total, sao: COM4, TXT, POM4, PGM4, P42, PGM3, P112, PCM3, PAM2, PCM4, COM1, P35, LOM1, DM4, DM3, PCM2, DM1, DM2, PCM1, P0, PAM3 e COM3.
However, using the module resources in this way blocks terminals COM1, 1, 3,5,6,7, 11, 13, 14, and 15.
The acquisition module is connected to the COM1 serial port and waits the data.
Sometimes COM1 is being used to support some other device; e.
2] LOM2 LOM3 COM1 PGM1 PGM2 PGM4 LOM2 0,38 0,97 0,79 * 0,68 0,78 LOM3 0,49 0,69 * 0,55 0,72 COM1 0,24 * 0,6 0,83 PGM1 0,24 * * PGM2 0,33 0,96 PGM4 0,32 PCM1 PCM3 DM4 P1 IDPO TXT [h.
and one USART is connects RS485 devices (over COM1 connector) with our controller through RS485 interface line adapter.
The COM1 Series features a standard supply voltage of 1.
I noted that jumper switches were in place for both serial ports, COM1 and COM2.