An asynchronous device, such as a teletype, transmits characters one

1) LAN Question
An asynchronous device, such as a teletype, transmits characters one at a time with unpredictable delays between characters. What problems, if any, do you foresee if such a device is connected to a LAN and allowed to transmit at will (subject to gaining access to the medium) ? How might such problems be resolved?Note: Please make sure you properly cite any sources used.
2) Ethernet Question
From your research and understanding of ethernet explain how IEEE 802.3 is used or implements in wireless networks if any and what is main difference in Ethernet and wireless in your point of view. Be detailed in your explanation and do not forget to reference your resources