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What IRQ does LPT2 usually use?
5
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 interrupt request is redirected to IRQ 9?
In many systems, the interrupt request (IRQ) that is redirected to IRQ 9 is typically used for the ACPI (Advanced Configuration and Power Interface) or for certain legacy devices, such as the interrupt for the integrated interrupt controller. Additionally, IRQ 9 can also be associated with the system timer in some architectures. The exact usage can vary based on the hardware and operating system configuration.
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
