Any modern computer is powerful enough for basic mono or stereo recording.
But it can get complicated… The problem is usually multitasking. (The operating system is always multitasking even when you’re running only one application.) Some other application, driver, or background process just has to hog the system for a few milliseconds too long and you get buffer overflow and a dropout/glitch.
A faster computer can help because it can finish the other tasks faster but there are so many variables that you can’t be sure a faster computer will work better.
Or if you really want to dig-in and optimize your computer for audio there is a free online book called [u]Glitch Free[/u].
P.S.
There is also a tool called [u]LatencyMon[/u] that can help to diagnose what’s sucking-up all of your CPU cycles. Luckily I’ve never has to use it, but it’s discussed in the Glitch Free book.
Thank you, I am not a tech person by any stretch of the imagination, but I think I can try some of these. Hopefully I will be back with questions of how to fully utilize all that audacity has to offer…