Funds is the money you've loaded onto your account. You can do it with a credit card, or with Nintendo Points Cards bought at games stores.
To add funds to your Nintendo eShop account, you must either have a prepaid Nintendo eShop card or a valid credit card. After launching the eShop, swipe to the right or tap the menu button to find the "Add funds" button. Alternatively, if you're looking to buy a specific game, do not have enough in your eShop account, and are paying by credit card, you can browse to the game you want to buy, then tap "Tap here to purchase." When the eShop tells you that you do not have enough to buy it, choose to add funds to your account, select "credit card", then select "needed" to add exactly as much as you need to buy that game. Remember that your eShop account is tied to your 3DS and cannot be used on another system.
you can buy it at gamestop or best buy
A debit card or an ATM card.
The memory card is an SD card, which you can get at most electronic stores. I think you can also get one from the Nintendo website, but I'm not positive.
A prepaid debt card is purchased at a store with specific amount of money on the card. It is used just like a normal debit card. However, if you try to purchase and item and you do not have enough funds on the card, the transaction will be declined. Unlike a regular debit card, which can be linked a savings account to draw out funds to protect an account from over-drafting, there is no account to link to.
How can handle the credit and debit cards. and how to open account give answer
Pokemon ranch is a wiiware game that can be bought on the Nintendo Shop on your nintendo wii for $10 or 1000 wiipoints (you can receive wiipoints by buying a nintendo points card at Gamestop, Target, Best Buy ect...).
Whatever retail store that the gift cards are for should have a page on their official website where you can check your gift card balance. Sometimes you will find it in their gift card section, but some sites require you to be signed in and check the balance in a different area, such as "my account".
The meaning of a card scanner, or card reader is to read data on the inserted card and link it to ones personal account such as a credit account or a banking account. The purpose of the scanner is so that the user can have secure access to their funds.
The Serve American Express card is a card product that allows you to access the funds in your Serve digital prepaid account. As of the summer of 2012, Serve is only available in the US for US transactions. You can use the card to access the funds in your Serve account for purchases or to get cash at an ATM... provided they accept American Express cards. Simply present the card for transactions as you would a credit or debit card. Provided funds are available in your Serve account, the transaction will be processed and the funds covering the transaction will be deducted from your Serve account. There are no transaction fees for purchase transactions, but transaction fees may apply to ATM transactions.
In order to add funds on the Nintendo eShop, you can either connect your credit card and withdraw cash from there, or you can buy a prepaid point card which can be redeemed by entering the pin afterwards.