There are a few different things.
If you are dealing with non-video, then memory and disk space are the most important.
If Video, then memory, disk space and CPU is the most important.
What do you have now as a PC? Is it capable of more memory? If not, does it have at least 2 to 4GB? (hell, a lot less depending on what you're doing) If so and you aren't working with large videos, then use what you have now.
You are looking to get into something I'm guessing you aren't even sure you're going to stick with. When that is the case, start as cheaply as possible. (ie, use what you have if you can)
What I'm saying is, if you PC isn't 8 years old with 512 megs of memory, then use your current PC and just get your cloud subscription. If you enjoy it and want to do larger projects, then buy a better PC.
Actually, you may want to look into Gimp rather than Photoshop type products. They are free and extremely capable. Your entry into this area could start completely free. IMO, that is by far the best way to enter graphics design.
Gimp has a free magazine
that has many tutorials not to mention hundreds on the net and Youtube.
Formerly the notorious nyc!
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If I'm not insulting you, I'm probably not aware that you exist.
Jerry Jones in the draft room is suicide on the football field. The line of scrimmage is EVERYTHING. Something Jerry doesn't understand.