When traveling to Singapore, how to surf the Internet with a laptop (do I need to buy a wireless network card?

I think if you don't buy a notebook too early, you will basically have a wireless network card.

So I don't need to buy any more.

You can surf the Internet in the hotel, which is available in most hotels. Of course, you can ask when booking a room.

Although Singapore has free wireless access points in most public places.

But you don't have an account, so you still can't log in.