(I assume that you meant this to be about an x86 PC)
16 IRQs without an APIC (old computers.)
Up to 255 with one. Normally a lot less, though.
Windows 2000 and on used IRQ sharing because the OS would allow more and more hardware. There is a set number of IRQs (15 or 16).
2
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IRQs 3 is reserved for the COM1 port.
Hardware computers are physical devices that you can touch and feel. This is perhaps the opposite of a Virtual Machine (VM), which does all the things a hardware computer can do, but it “lives” inside a hardware computer. Many VMs can be hosted on a hardware computer, although the total number that can run in a hardware computer depends on resource utilization and availability (e.g., hard drives, RAM, network adapters, etc.).
Its A IRQs , I/O addressses, memory addresses, and the MDA channels
In computing, a hardware random number generator is an apparatus that generates random numbers from a physical process.
Interrupt Requests are method for handling requests from components such as Keyboard, Mouse, Clock etc & get attention of Processor.Each specific components is assigned IRQ number.
Total Tools is a franchise in Australia that specializes in selling tools and hardware. To contact them, one can fill out a form online at Total Tools, or use their store locator feature to get the phone number of a local branch.
One could buy drawer hardware at a number of specialty stores. Establishments like Lowes, Home Depot and Home Hardware are all specialty hardware stores.
From http://www.brainbell.com/tutors/A+/Hardware/Direct_Memory_Access_DMA.htm "DMA channels use the same rules as IRQs. Just as with the 8259 chip, DMA availability soon became a problem because an insufficient number of channels was available. A second DMA chip was added for 286-based computers. Just like the second IRQ chip, these two are cascaded, allowing a total of eight DMA channel assignments (usually referred to simply as DMA channels). The floppy disk drives on all computers use DMA channel 2."
No