Do I Need The Krystal Card?

[KMWKMW]

Greetings, everyone:

I am VERY new to both computing and MTU. I THINK I would like to purchase the:

* MicroEditor 5.5n
* MicroCD 2.403n
* CD ROM Hard Copy
* DNoise V3.3
* CDR48XIDE
* MicroManESD

all for loading into my own case. My question is is the Krystal DSP card no longer needed to complete the system? What is its claim to fame? And, is the Pentium IV the ONLY processor usable?

As I am such a novice, please feel free to suggest how I might accomplish a complete, stable, worry-free system beyond my feeble efforts expressed herein.