I really don't know...I thought most computers came with Photoshop. Am I wrong? Is that something to buy online?
No, Photoshop is worth hundreds of dollars, you get that separately. Mac's come with iPhoto and Windows has Paint (or something) which are programs you can do some editing - but very limited compared to Photoshop.
I think it depends on what computer brand you've bought.I'm pretty sure Apple has Photoshop and shizz like that on there when you buy it.
most computers do come with photoshop, but only a trial version that lasts a few days at most. to get the whole program unblocked you usually have to buy from adobe.
Some computers come with a trail of photoshop, but most likely you will have to pay for it online, or buy it at best buy or some computer store.