A dial-up modem may be a plug-in card inside the computer, or it may connect to a serial or USB port.
Waffles
Waffles
A DB-25 port is a type of connector that has 25 pins arranged in two rows. It was commonly used for serial and parallel interfaces on older computer equipment such as printers, modems, and early networking devices.
asyncronous
No. The term serial port refers to the older 9 or 25 pin, male connectors on the back of a PC. They were used for connecting to modems, certain printers, and mice.A USB port, while it is technically a type of serial port, it is incompatible with the old type of serial port. A USB port gets information about the device from the device, while the old type serial port simply transmitted data. USB to serial adapters do exist, but compatibility can be a challenge.
A virtual port is a software emulation of a port which normally would be present in hardware. This is most commonly used with modems and printers. Many internal modems emulate a COM port. When modems first became common by far the most common type was an external modem which plugged into a serial port (a COM port) in the back of the machine. Nearly all of the early dial-up networking applications were written with the assumption that the modem could be found on one of these COM ports. While it is no longer necessary for the modem to reside on a COM port, most new modems still emulate one in order to maintain compatibility with these legacy applications. Printers can also reside on a virtual port for much the same reasons. All printers used to plug into a parallel port (an LPT port) on the computer. As a result many legacy programs were written with the assumption that any printers would be located on an LPT port. When USB printers became commonplace it became necessary to allow these USB printers to be assigned a virtual parallel port in order to maintain compatibility with these older programs. This can be configured in the OS in the printers settings and is most often used for DOS-level point-of-sale or data-entry applications.
a old type bell they use back in he days
A modem is a device that modulates signals to encode digital information and demodulates signals to decode the transmitted information. It the "thing" that you needed to connect to the internet.
Type II PCMCIA slots are used by most PCMCIA modems.
Type ii
Yes.
The type of connector is used by the analog modems is RJ11 or RJ45.