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Three broad classifications of peripheral devices?
1.) Cable Modem 2.) DSl Modem 3. ) Dial-up Modem
Who invented modem?
Mariama Ali
What is the function of DB25?
The DB25 connector was designed by Bell Labs to connect a variety of different modems to terminals. At the time the phone company owned all the wires and everything that connected directly to them, thus they owned your phone and any modem you used with a terminal to connect to tymeshare services. The 25 pin cable that connected the DB25 (DCE) on the modem to the DB25 (DTE) on your terminal was owned by you. Thus the DB25 connector on the modem was the property line that allowed you access to use the phone line for digital data via a phone company owned modem. This was eventually standardized as RS-232.It was your responsibility to set the DIP switches on your terminal to be compatible with the phone company owned modem that they supplied. The most common early modem was the 300 BAUD asynchronous full duplex modem but the 1200 BAUD asynchronous half duplex modem was also available. Both used the same DB25 but the half duplex modem used some additional wires for handshake to switch line direction, under control of the modem. There were also higher speed synchronous modems that generated clocks for your terminal, the clocks used more additional wires. All 25 pins are preassigned some modem related function in RS-232.After the law was changed to allow third party devices to connect directly to the phone line, there was much innovation and much faster modems (most asynchronous full duplex). The DB25 was still usually used to connect to these modems but it no longer defined a property line, it was just the connectors on the cable. Eventually modem companies started making cards that plugged into desktop computers and the phone line plugged into the card, making the DB25 obsolete.The DB25 and the RS-232 standard have been much misused, to connect all sorts of devices that are not modems to computers... who is the "modem" and who is the "terminal". These devices often use handshake lines in ways that are illegal by RS-232, or use lines that RS-232 reserves for special but rarely used modem functions.
What were the functions for u-boats?
Functions? Operating or fighting?
What do Dennis C Hayes device do?
It was an inexpensive modem (modulator-demodulator) to connect a terminal or home computer via RS-232 into the phone line. Later ones came as an adapter card inside the home computer, eliminating the RS-232 link. One major advantage of Hayes modems over others of the time was the escape sequence "+++" and the easy to use Hayes "AT" command set, allowing complete control of the modem and connection through the same link as used for normal data, eliminating physical controls and switches on the modem. This was so popular it was soon copied by other modem makers, becoming a de-facto standard.
What is an intelligent modem?
a modem that has extra functions such as automatic answering and dialing is called intelligent modem
What function does a modem provide in communication between computers?
FUNCTIONS OF MODEM
What are the functions of the MODEM?
Modulate Demodulate
What are the functions of GSM modem?
it is connected with vsystem for communication
How do you connect 56k fax modem with DSL?
The short answer is that you don't. Sure, you can plug a fax modem into a phone line that supports DSL, but it is just using the dial-up capabilities of the line and not the DSL capabilities. A regular modem like that functions like a telephone and transmits in the audible frequency range and not the higher DSL frequencies. With DSL, you'd use a DSL modem (with or without an included router), not a dial-up modem.
Will my DSL modem work as a cable modem?
You will need to buy a new modem that is designed for your DSL modem. This is due to the fact that the modem is designed to use the dsl signal opposed to the cable modem.
Who uses the modem?
One who want to connect to the internet.
How modem can be used as a sentence?
I want a more colorful modem. My modem is missing. Why can't my computer operate without a modem?
Is an HDA modem a fax modem?
no
Is a modem really a modem?
If it's modulates and demodulates a signal then yes, it's a modem.
What are The three major types of digital modems?
master modem recontiled modem segripetal; modem
What is the difference between port speed and modem speed?
Port speed is how fast the computer talks to the modem. Modem speed is how fast the modem talks across the phone line to the other modem.
