| A | B |
|---|
| serial port | the externalconecter on a computer that is used as an interface between the comp. and serial devices |
| paralell ports | a 25 pin interface cable found on just about all PCs |
| modem | a device to turn digital signals to analog ones and back again so they can be transmitted and translated |
| asynchronous | method of communication transfers data without a specific timing device between the two communicating parts |
| rs-232c | a serial interface used on a PC |
| request to send | requests the permission to send data |
| data set ready | signal sent indicating its ability to send data |
| data terminal ready | a signal indicating its redyness to accept data |
| clear to send | signal indicating readyness to acess data |
