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COM1 is seldom used for anything these days, and may not even be mapped to a physical device on newer systems. Its primary purpose is/was to serve as a communications port, either to an internal or external modem, or as a connection into a mainframe computer. It has also seen some use as a general purpose expansion port and been used to attach mice, printers, and cameras to a computer.
What else can I help you with?
What is IRQ 3 used for?
IRQs 3 is reserved for the COM1 port.
What is com1 com2 com3 and com4?
The "com" ports are computer, serical communications ports (normally RS-232).
What system resources does com1 use com2 com2 com3 com4?
COM1-IRQ 4, memory addresses 03F8-03FF COM2-IRQ 3, memory addresses 02F8-02FF COM3-IRQ 4, memory addresses 03E8-03EF COM4-IRQ 3, memory addresses 02E8-02EF pg. 396
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.
How can you link RS232 serial data on COM1 to output on COM2?
Yes on a modern computer you will need a USB to 9 pin RS232 converter or previously use the LPT parallel port.
What is IRQ 3 used for?
IRQs 3 is reserved for the COM1 port.
Why is COM1 is not available?
It can be switched off in BIOS of your PC. In Apple Macintosh there's no COM1 at all.
What are com1 com2 and com3?
COM1 and COM2 originally referred to the serial port interfaces on a PC. Now they can refer to any port, virtual or physical.
What Serial ports on a computer can be configured as?
com1,com2 com3
What system resources does COM3 use?
well COM1, COM2, COM3, and COM4 are sometimes configured as Serial Ports.
What is a correct default combination of com ports and irq for a typical ibm compatible computer?
COM1 and COM3, IRQ4
What is com1 com2 com3 and com4?
The "com" ports are computer, serical communications ports (normally RS-232).
Where do you find drivers for COM1 serial port?
Already the windows xp have serial port.so no need to go for serial port driver.
What system resources does com1 use com2 com2 com3 com4?
COM1-IRQ 4, memory addresses 03F8-03FF COM2-IRQ 3, memory addresses 02F8-02FF COM3-IRQ 4, memory addresses 03E8-03EF COM4-IRQ 3, memory addresses 02E8-02EF pg. 396
What is an LPT1 on a computer?
It is a device file used for Parallel port. Consider the following command dir >prn (or) lpt1 dir >com1 dir >com2 that is the input is sent to the specified device file or device or a file.
Which port is associated with ttyS0?
The serial ports are named ttyS0, ttyS1, etc.And usually correspond respectively to COM1, COM2, etc. in DOS/Windows
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.
