Plug-And-Play (Pnp) And Resources - M-Audio Dman 2044 Manual

Interrupt
IRQ2/9
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
Typical IRQ Assignments in the PC

Plug-and-Play (PnP) and Resources

Before PnP, properly configuring a PC compatible system was no small
task. Usually when new devices were added to the system, the hardware
was manually configured with jumper blocks and DIP switches, and
there were configuration conflicts that caused the computer to work
erratically or not at all. Users typically resolved configuration conflicts
by consulting complicated documentation provided with the each inter-
face card, contacting the supplier's technical support group, consulting a
friend, or giving up in disgust. Even trained engineers found the PC
card configuration process unreliable and frustrating. As the current
generation ISA expansion cards were introduced, including multi-func-
tion versions with wavetable music synthesis, hi-fidelity audio, MPEG
audio/video & FAX/modem capabilities, more systems resources were
required than ever before, causing even more system resource conflicts.
In 1993, the first PC PnP specification was proposed as a solution to com-
mon resource conflicts. PnP defines a means for the computer to com-
municate with its various installed devices and resolve any potential
resource conflicts. In theory, with a working PnP system, jumpers and
DIP switches are a thing of the past and compliant hardware is config-
ured automatically or with little user intervention. PnP works with exist-
ing bus architectures and is widely supported by the industry. To gain
IBM PC Assigns This Interrupt To:
2 NOT available in Windows 95. 9 sometimes available.
COM2: Second Serial Port, sometimes available
COM1: First Serial Port
LPT2: Second Parallel Printer Port, usually available
Floppy Disk Controller
LPT1: 1st Parallel Printer Port
Real Time Clock
Available
Available
Pointing Device (Mouse)
Math Co-processor
Hard Disk
Second Hard Disk, usually available
28