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What IRQ does LPT2 usually use?

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What IRQ does LPT1 usually use?

LTP1 should use IRQ7.


What is the address of COM1?

From: http://www.techadvice.com/tech/C/ComPort_TS.htmCom1, IRQ 4, address: 3F8Com2, IRQ 3, address: 2F8Com3, IRQ 4, address: 3E8Com4, IRQ 3, address: 2E8


List interrupts used with the IBM PC type sytems?

IRQ 0 - System timer. IRQ 1 - Keyboard. IRQ 2 - Cascaded signals from IRQs 8-15. IRQ 3 - COM2 (Default) and COM4 (User) serial ports IRQ 4 - COM1 (Default) and COM3 (User) serial ports IRQ 5 - LPT2 Parallel Port 2 or sound card IRQ 6 - Floppy disk controller IRQ 7 - LPT1 Parallel Port 1 or sound card (8-bit Sound Blaster and compatibles) IRQ 8 - Real time clock IRQ 9 - Free / Open interrupt / Available / SCSI. Any devices configured to use IRQ 2 will actually be using IRQ 9. IRQ 10 - Free IRQ 11 - Free IRQ 12 - PS/2 connector Mouse. IRQ 13 - ISA / Math Co-Processor IRQ 14 - Primary IDE. If no Primary IDE this can be changed IRQ 15 - Secondary IDE These are just a set of standard IRQs. For much more detail check our Ralf Brown's list located at http://www.cs.cmu.edu/~ralf/files.html


What is the IRQ for a keyboard?

IRQ 1 is used exclusively for the keyboard controller.


What IRQ does COM2 use?

COM2 typically uses IRQ 3. The Interrupt Request (IRQ) is a signal used by hardware devices to get the attention of the CPU. In the case of COM2, which is a communication port, it uses IRQ 3 to communicate with the CPU for data transmission and reception.


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

COM and LPT PORTS


What IRQ is used by the mouse?

i dont know the answer


What IRQ is used by moused?

i dont know the answer


Which three system resources are commonly used for communication between the CPU or memory and other components in the computer?

DMA , IRQ and I/O address


List 4 system resources that software uses to manage hardware?

IRQ,DMA channels,I/O address and memory address


What are the four major system resources used by computer devices?

The major system resources to consider are the I/O port address, memory addresses, IRQ, and DMA settings.