They are provided when you purchase the card and vary with the card
No, their is not a memory card for the ps3.
From your Playstation Network connection on a PS3 you only need money in your Playstation Wallet from a credit card matching your account or a Playstation Network Card to make a purchase and download it into your PS3 harddrive
No, the ps3 does not have memory card slots.
Yes, you can buy pre loaded cards, or use a credt/debit card.
you can add points with a credit card in your playstation store or you can buy points at any shop that sells video games (i.e. Gamestop, Walmart, Target)
You need a credit card to add money to your Playstation wallet and to join Playstation plus. You can also add money to the wallet with a Playstation network card you purchase at a retail store
If you have a graphics card that supports HDMI you can of course connect the PS3 to that card. Will it work at all? most likely not. why not
It is illegal to do so if you have not bought a PSN card, entered the code on the back, and downloaded it through the PlayStation Store.
the ps3 store i use it directly on my ps3, i am not sure if you can use it online though The PS3 PlayStation store is available only for the PS3 consoles that have online capability and it is the preferred way to download to your PS3. If your PS3 does not have an internet connection your PS3 can not access or use the PlayStation store . I know procedures exist to allow update information to be downloaded from a computer and moved to the PS3. The best source for procedures is the PlayStation network support at related link
Yes, the memory card for the PS2 can indeed be used in the PS3 also.
Only the original PS3 models came with a memory card slot, newer models can be extended via the USB port with a PS3 compatable card reader module.