Depends on how quickly the pound bounces back tbh. We've got the 5th biggest economy in the world (or will have again pretty soon), the main reason why the pound dropped down the toilet temporarily was because these supposed financial whizz kids ignored polls and backed the wrong horse.
It's going to take us at least 2 years to leave the European Union and once that time is over this country will no longer have our hands tied with regards to commercial deals with non-member states such as the US, China and Japan - which means in the long term PC prices and PC component prices will go down in a few years.
Leaving the European Union also isn't going to stop us from doing commercial deals with European Union member states. They need to buy our stuff and won't cut their noses off to spite their faces.
And after those two years have come and gone the UK will be saving around 18bn quid every year.
Northern Ireland have enough Loyalists to vote to win any Border referendum so they'll remain in the UK. The one country I do worry about is Scotland if they have another Independence referendum and they leave the UK to remain in the European Union. Now that the UK is leaving it's only a matter of time before other member states follow with their own referendums and once that happens the European Union will collapse and the Euro with it, which is going to be DISASTROUS for Scotland's economy. :Oo
Sorry, I went off on a tangent there lol, TLDR; the UK economy will be fine and in a few years we'll have the benefit of cheaper hardware due to us being able to have unrestricted commercial dealings with the States, Japan and China.

D