They are abbreviations for Transmit and Receive, respectively.
recieve buffer and transmit buffer
Tx and Rx - are shorthand for 'transmit' and 'receive'.
Rx= recipe = you take Tx= treatment recipe for the treatment
RX is the receiving port and TX is the transmitting port. If you see RX/TX lights flashing, it means that there is data being received or transmitted at that time.
If 'a' and 'b' are talking to each other, i.e. communicating, then Tx-a = Rx-b, and Tx-b = Rx-a.
TX = Data Transferring RX = Data Receiving
Reaction.
RX nd TX refers to the radio frequencies the phone uses to receive and transmit voice calls. A mobile phone is essentially two 'walkie-talkies' operating at the same time - so you can talk and hear simultaneously. The handset transmits (TX) on one frequency, and receives (RX) on a different frequency.
Prescription Radix.
Prescription (medicine)
Out of the two, the Yamaha RX-V663 is a better receiver than the Onkyo TX-SR608. Although, the Onkyo is a good AV receiver, it is not as powerful as the Yamaha receiver.
Rx is the medical abbreviation meaning prescription.
RX Prescription RX Radix (Latin: Root; derivation of prescription) RX Receive/Receiver/Reception RX Radiation Experiments RX Re-Xray RX Reaction (medical) RX Reactor RX Recipe - Take RX Reparable Exchange RX Reserve RX Resources Exchange RX Rexall RX Treatment RX US Revenue Distilled Spirits (Scott Catalogue prefix; philately) rx Rotary Experimental (Mazda model/engine)