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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
Which port names and resources are assigned to most PCs?
COM1 is assigned 3F8h and uses IRQ Channel 4, COM2 is assigned 2F8h and uses IRQ Channel 3, COM3 is assigned 3E8h and uses IRQ Channel 4
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 default IRQ for COM1?
QuestionAnswerIRQ 0SYSTEM TIMERIRQ 1KEYBOARDIRQ 2CASCADED WITH IRQ 9IRQ 3COM2 AND COM4IRQ 4COM1 AND COM3IRQ 5LPT2IRQ 6FLOPPY DRIVE CONTROLLERIRQ7LPT1IRQ8REAL TIME CLOCK
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
What is the common IRQ setting for COM3?
4
A sound card typically uses with irq?
This question is irrelevant on modern PCs, and has been for roughly the past 10 years. Back in the 90s, sound cards were plugged into the ISA bus, which until the very end required manual IRQ configuration. The most common line of cards was SoundBlaster by Creative Labs, which become the de-facto standard. On a typical early SoundBlaster cards or third-party imitations, you could generally choose between IRQs 2,5,7 or 10. IRQ 2 was often reserved for the system DMA controller, and IRQ 10 wasn't always addressable on some motherboards. Many cards had a default of IRQ7, but if you turned on na ECP Parallel Port, it would conflict as well. That left IRQ5, which typically didn't have many conflicting devices with the possible exception of an internal modem that couldn't use IRQs 4 or 3 because both RS232 serial (COM) ports were already in use. There is still a debate from people who were involved at the time whether the "real" default was IRQ5 or IRQ7. It didn't matter that much then, and it doesn't matter at all now. It was simply a question of implementation on the specific model of card that you got. Later on, more advanced 16-bit and wavetable cards like the Soundblaster 16 or AWE32 and Gravis Ultrasound provided a much wider array of IRQ choices, and most could be configured via software, or configured themselves automatically. When the PCI bus replaced ISA, the entire IRQ/Address/Port range manual configuration issue became moot.
List 4 system resources that software uses to manage hardware?
IRQ,DMA channels,I/O address and memory address
Can a workbook contain 4 worksheet by default?
The default for a workbook is to contain 3 sheets. However, you can change the default, so it could be set to 4 sheets if you wanted to.
How many syllables does the word communism have?
it has 4 com - mu - ni - sm
When will sly 4 com out?
2012
How many default virtual consoles are available in Red Hat Enterprise Linux?
by default 4 and can be upgraded upto 36..
