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A preassigned combination of an IRQ and IO address is called what?
COM and LPT PORTS
What is the larger port on the back of the computer for?
On recent computers the 25 pin D-sub is for the parallel port that is used to connect a printer to. On older (back in the mid to early 90s) there was also a 25 pin D-sub that was used as a COM (communication) port. The difference between the two is the printer port is a female port and the COM port is a male port.
What is virtual com port?
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.
What are the two basic type type cable inside a computer case?
PS/2 (mouse or/and keyboard) and USB (other stuff). Also video out port D-SUB, DVI and so on. On older computers you can find COM and LPT.
What is the other name for com port?
A com port can also be called a serial port.
How many pins does a COM port have?
how many ports does com port have
What does com two port mean?
A com port is the old type of serial port on a PC. They are numbered, and some PCs had two or more. Someone might use com port one for a mouse and com port two for a modem.
What is the difference between serial and non-serial printers?
Serial printers are connected via the serial (COM) port of the computer. "Non-serial" printers are connected through another interface, such as the parallel port, USB, ADB. FireWire, etc...
Can't find USB port in HP Laser Jet 1020 printer installation. Currently using Windows XP Black 19.01. LPT COM ports are available but no USB port.?
If you cannot find a USB cable for the PRINTER then it is proably a Network printer which means you cannot use it with USB!! :@ If you have no USB port on ur PC/Mac then you need to change it! :D Simples!!
MS-DOS command to change com port?
Use the "change port" command (without the quotes, of course) to change the port you're deciding to map to somewhere else. First, to display the current com port mappings, you can use change port / query Then, to change a port, type change [old com port]=[new com port] NOTE: Change the text in the brackets to the actual com port, making sure to use keyword "COM," again without the quotes, and in the example, without the brackets Here's an example: change port COM2=COM4 Finally, to delete a COM port listing, use the following format: change port /d [COM PORT] Here's an example of deleting a COM port listing: change port /d COM8 Hope this helps!
What is a com port?
Communication Port.
What does mean by COM 1 port?
COM 1 means SERIAL port number 1
