"Bid" is what the highest buyer offers. "Ask" is the lowest price a seller wants. For thinly traded stocks, there is often a stand-off between buyers and sellers and there is no trade. "Last" is what price the last transaction occurred at.
If you come in as a buyer at the "market price", meaning willing to pay whatever "best price" you can get, you will get the lowest price that a seller wants, which is the Ask price. If you come in as a seller at the "market price", you will get the highest price that a buyer wants, which is the Bid price.
Or, you can set your own price, which means that it may not get filled at all, if no buyer or seller wants to accept your terms. In your example, if I really want to buy or sell this stock, I would set my price a bit higher or lower than the "last" price, as this is a reasonable compromise between the "ask" and "bid", which is obviously a stalemate.
In the example you posted, such a big "spread" between the bid and ask means that there are not too many buyers and sellers in this stock. For a highly liquid stock such as Intel, the spread is usually in the pennies when the market is open.
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