Is there such a thing as unlimited cellular data on a laptop?

[Theperson45]

For example, Three has a pay-as-you-go SIM-only data plan where you can get unlimited data for one month, for £35. It can be used on a phone or a tablet, but there's no mention of it being compatible with a laptop, aside from tethering (which may be capped, although I think this depends on the provider). Similarly, giffgaff has their 'Always On SIM-only' plan, which also allows tethering, but no indication as to whether a tethered connection is capped or whether the SIM works in a laptop.

There are some laptops out there that have a SIM card slot. Could I use the above SIMs in a laptop and still get unlimited data, or would the SIM be blocked since it's a non-mobile OS?

Ultimately, I'd like to know whether there is such a thing as unlimited cellular data on a laptop, from any provider.

 

[Theperson45]

Thanks, lltfdaniel. I do have Virgin Media for broadband, so I'll consider that, since they have no limit on tethering also.

Apart from that, these seem like other good options.

Three
Rolling one-month contract at £35 per month.
No data cap on phone. 30GB cap on tethering.
No speed throttling.

giffgaff
Pay-as-you-go. £25 for one month of data.
No data cap on phone. No cap on tethering.
Speed restriction (after 20GB is used, speed goes down to 0.384Mbps from 08:00 to 23:59. Full speed from 00:00 to 07:59).