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Hayes Accura V. Both of these items’ sales were apparently dismal. We are a retired couple whom enjoy searching out estate sale treasures and passing them on the final user or collector. When this was received from the computer, the modem would switch from data to command mode. In this way, the modem could be instructed by the computer to perform various operations, such as hang up the phone or dial a number. The wire coming out of the wall connects directly to the modem.

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The new design, housed in an extruded aluminum case sized to allow a standard desktop telephone to rest on top, was announced in April When this was received from the computer, the modem would switch from data to command mode. The name referred to the way the modems could “ping-pong” the single high-speed link between the two ends on demand, in a fashion similar to the USR and Telebit protocols.

You must write the programs to control it or to send it commands, if you want to control it automatically. Hayes Microcomputer Products was a U.

Hayes Microcomputer Products

There seems to be a problem serving the request at this time. Such modems had access to the computer’s main memory, and by dedicating certain memory locations or registers to various status readouts or commands, software programs running on the computer could control the modem.

Without the explanation, the command would be ATDT There needed to be some way to indicate that the characters flowing out from the computer to the modem were not simply additional data to be sent to the far end, but commands to be acted on. Additionally, the rise of the Internet in the mids made point-to-point communications far less interesting. Hayes’s slow entry into the high-speed market led to a fracturing of the command set. Business picked up quickly, and in January they quit their jobs at National Data to form their own company, D.


Hayes Modem for sale | eBay

They remained a major vendor throughout the s, periodically introducing models with higher throughput. The company is well known for the Smartmodemwhich introduced a control language for operating the functions smarmodem the modem via the serial interface, in contrast to manual operation with front-panel switches.

Guaranteed by Fri, Jan 4. At the time of its introduction, the modem market was fairly small, and competitors generally ignored the Smartmodem.

Hayes originally had big plans for the form factor, referring to it as the Hayes Stack and intending to release a range of products that could be stacked beside the computer.

Hayes left the Georgia Institute of Technology in the mids to work at an early data communications company, National Data Corp, a company that handled electronic money transfers and credit card authorizations. Intelligent Machines Journal By the early s, this was a major focus of the company. Any problems will be handled in a professional and timely manner via their customer service line.

Hayes Smartmodem | modems (vintage) in | Pinterest | Old computers, Internet and Apple ii

An obvious solution was to use the RS serial port; modems were serial devices and generally driven off RS anyway, and most computer designs included an RS port, or some variant. For parts or not working.


If I don’t need a phone with the modem, samrtmodem do I know what is occurring on the line when I dial a BBS or remote computer?

In one, data modeall data forwarded from the computer were modulated and sent over the connected telephone line as it was with any other modem. Heatherington retired from what was then a large company in You may have noticed that the list price is a bit overwhelming. Hayes was no exception; the company introduced its v.

Review – Hayes Smartmodem 1200

Includes power cord and phone cord. There were optional systems to dial the phone or pick it up, but these were generally implemented as separate devices also intended to be used on one end of the connection or the other.

Rockwell had taken their commands from the V-series Smartmodems, so by the mids the market was once again based largely on a “real” Hayes command set. 1200 eventually purchased two of their competitors, Practical Peripherals and Cardinal, turning them into low-cost brands in order to compete with companies such as Zoom Telephonics.

Several solutions to the problem were studied, and in the end Heatherington decided the only practical one was to have the modem operate in two modes.

You May Also Like. The program allows the modem to communicate with either you or the computer. Many modems allow operation at baud, while others allow baud.