Where is COM1 port on my computer?

Where is COM1 port on my computer?

Open the Device Manager on your host computer/PC. Connect the UPort to the host computer (host). In the Device Manager, expand the Universal Serial Bus Controllers tree. You will see your native COM port listed as Communications Port (COM1).

Is COM1 a USB port?

Since USB can do the same thing as many COM ports, most computers now lack serial ports. If you need one to satisfy your software, though, USB’s benefits don’t help you. The solution is to plug a USB to serial adapter into a USB port and set it to act as COM1.

What is a COM port on a laptop?

Computer | Laptop Port Technically, they are just slots on your motherboard. A computer port is also known as a communication port because it is in charge of communication between the computer and peripheral devices.

What does COM1 mean computer?

first serial port
Com1 definition In a PC, the name assigned to the first serial port. The second is COM2, etc. PCs are typically designed to support up to four serial ports. On earlier PCs, two external serial ports were provided to connect a mouse and modem.

Does my computer have a COM port?

To check what port is used by what service. Open device manager Select the COM Port Right click and then click on Properties/Port Settings Tab/Advanced Button/COM Port Number Drop-down menu and assigned the COM port.

What is COM1 port used for?

The COM designation is due to their use as communication ports on IBM compatible computers. In traditional personal computers, COM1 and COM2 were often used to connect a serial port device such as a modem or mouse.

What is COM1 on motherboard?

COM1 is the first serial port. COM is short for communictation. These types of serial ports were officially named RS232, for the style of communication used – transering one byte at a time, one after the other, through series of pulses. This is binary language.

How do I use a COM port?


  1. Go to Windows Device manager > Multi-port serial adapters.
  2. Select the adapter and right click to open the menu.
  3. Click on the Properties link.
  4. Open the Ports Configuration tab.
  5. Click on the Port Setting button.
  6. Select the Port Number and click OK.
  7. Click OK to apply the changes.

How many COM ports does a computer have?

There are 65,535 possible port numbers, although not all are in common use. Some of the most commonly used ports, along with their associated networking protocol, are: Ports 20 and 21: File Transfer Protocol (FTP).

How do I install a com1 port in Windows 10?

How to Assign a COM Port to USB Windows 10 Device Manager

  1. Open Windows Device Manager.
  2. Click to expand Ports (COM & LPT).
  3. Right click on the target USB device.
  4. Select Properties.
  5. Shift to Port Settings.
  6. Click Advanced.
  7. Select a proper COM port identifier from the drop-down menu of COM Port Number.
  8. Click OK to confirm.

How do I find COM ports?

Follow the instructions to get your COM port number:

  1. Open Device Manager (Start → Control Panel → Hardware and Sound → Device Manager)
  2. Look in the Device Manager list, open the category “Ports” and find the matching COM Port.
  3. Take the number in the bracket behind the port description.

What does Com1 mean computer?

How do I know if my COM port is working?

To test if the computer COM port is functioning correctly, you can do a simple loopback test. (In a loopback test, a signal is sent from a device and returned, or looped back, to the device.) For this test, connect a serial cable to the COM port that you want to test. Then short pin 2 and pin 3 of the cable together.

How do you check com1 port is working or not?

How do I change my USB to COM port 1?

How do I turn a USB port into a COM port?

Knowledge Base

  1. Go to the Control Panel.
  2. Click on System.
  3. Click on Device Manager.
  4. Right-click on the USB adapter under Com Ports and click on Properties.
  5. Go to the Port Settings tab and click on Advanced.
  6. Select a com port number that is compatible with the GUI software.
  7. Click OK.

How many COM ports are there in a computer?

Ports and Protocols. Between the protocols User Datagram Protocol (UDP) and Transmission Control Protocol (TCP), there are 65,535 ports available for communication between devices.