Where has the port gone?

Q My 10-year- old HP laptop is in urgent need of replacement. I am quite keen on the Lenovo Miix 510, which is a more affordable mimic of the Microsoft Surface Pro; basically a 12in tablet with a very thin keyboard that doubles as a screen cover. I think it’s powerful enough to run Lightroom, which I intend to start using at the same time as my laptop upgrade. The problem is that there doesn’t seem to be a monitor port of any kind on the Lenovo, or a LAN port. I was thinking about using the latter to connect to a NAS drive, containing my Photoshop library, as Wi- Fi would be slower. Neither is there an SD card slot. I find all this rather perplexing, or am I missing something? Ed Jarvis

A We are now in the era of multi-function ports. The Lenovo Miix, like an increasing number of compact computing devices, only has two USB ports. One, crucially, is a C-type USB 3.1 port. Apart from

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