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To test COM ports, you need a computer with a functioning serial port or a USB-to-serial adapter, appropriate software for communication (like terminal emulation software), and a loopback connector or a serial device to connect to the port. Additionally, you may require a null modem cable if you are testing communication between two devices. Ensure that the correct COM port settings (baud rate, data bits, parity, stop bits, and flow control) are configured in the software.

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2w ago

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Hi guysgirls i need help with this i have been messing about with some usb block erupters and i have a lot of com ports in use when there are not how do i go about releasing the one's in use?

To release COM ports that are in use, first, open the Device Manager on your computer. Expand the "Ports (COM & LPT)" section to see the active ports. Right-click on any COM port you want to release and select "Disable" or "Uninstall" if you no longer need it. After that, you can unplug your USB block erupters and restart your computer to refresh the COM port assignments.


How many pins does a COM port have?

how many ports does com port have


How are serial pors amd com ports the same?

COM ports transfer data using a serial connection as opposed to a parallel connection.


Computer technician needs to test the COM ports on some new computers what diagnostic tool can help achieve this task properly?

Loopback adapter


Is a USB port and COM1 the same thing?

No. Both COM ports and USB ports are serial interfaces, but the COM interfaces are driven by single device UARTs.


What is com1 header for Asus motherboard?

See what COM defines is the communication ports and hence COM 1 is one of the USB port or might be some COM ports you have on your motherboard back. You can refer to the map of your motherboard to know which is the. port for COM 1.


Where is the location of the COM port?

Your computer might not necessarily have a com port at all. A com port is just an older style serial port. USB ports have replaced com ports for the most part. If you have any com ports, they would be on the back of the computer. They would be male (pins sticking out), and have 9 or 25 pins. If there is a 25-pin female D-socket, that would be a parallel port.


What type of resources do COM ports require?

IRQ and I/O


What is com1 com2 com3 and com4?

The "com" ports are computer, serical communications ports (normally RS-232).


3 types of Ports that are often found coming directly off an ATX motherboard to be used by external devices.?

1. Serial / COM ports 2. Parallel / LPT ports 3. USB ports.


A preassigned combination of an IRQ and IO address is called what?

COM and LPT PORTS


What do you use the com port for?

Com stands for communication. Com ports are used to communicate with other pieces of hardware. A modem is an example. They are not that commonly used any longer.