I Am Supposed To To What I Am Told
Body & Soul7 mins ago
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For more on marking an answer as the "Best Answer", please visit our FAQ.Basically a PCMCIA wireless card (credit card size with fits into a slot on the laptop) of some type.
If you mean remote location such as a train station or an airport then a wireless PCMCIA card to pick up Internet access through what are called Wi-Fi hotspots.
If you mean the middle of a muddy field then you could look at a GSM card. Basically a mobile phone used as a modem although I wouldn't recommend these.
If it says cardbus this refers to the Type III PCMCIA type of card - so you should be able to run Type I, II or III cards. Typically a wireless adapter will be a Type II card so I would say you can use any card.
Worth checking that you haven't got wireless already installed as some of the HP laptops have it pre-installed with a button to turn on/off.