A company that specialized in modems and remote access products. Based in Atlanta, GA, and founded in 1977 by Dennis Hayes, the company pioneered personal computer communications with the design of its Smartmodem and shipped its first 300 baud model in 1978. Initially Hayes Microcomputer Products, Inc., it became Hayes Corporation in 1997 when it merged with Access Beyond, a spin-off of Penril Data Communications. Hayes filed for Chapter 11 in October 1998 and later ceased operations. Almost all modems use the Hayes command language (see AT command set).

In mid-1999, Zoom Telephonics purchased worldwide product and trademark rights for all Hayes analog modems except the EZ-Jack PCMCIA card. Zoom offers free technical support for the Hayes modems it produces. For more information, visit www.hayesmicro.com.

ModemExpress, Inc., Monticello, MN, obtained the Hayes domain name (www.hayes.com) and provides service and support of Hayes products. See Hayes Smartmodem.