Answer:
Most brokerage firms won't let you directly fund your account with a credit card to buy and sell stocks. Instead, you'll have to fund your account in other ways, like a bank transfer, check or wire transfer.
Answer:
It improved communication a lot not and enabled people to save money on transportation (its easier to call someone than write a letter and make someone on a horse ride for miles) not sure about the effects on power though.
Explanation:
