Pinkyboyid's link assumes that your computer doesn't already have a video input. If it does, you'll only need some suitable software, such as VLC
http://www.videolan.org/vlc/download-windows.en_GB.html
(Select VLC's source as the video input. Play tape. Click red 'Record' button. Wait till end. Click black 'Stop' button).
However only a few computers come with video inputs. (They tend to be ones which have aerial sockets, so that you can watch terrestrial TV on them). So you probably will need Pinkyboyid's device.
Either way, you'll also need a cable to connect the output of your VHS recorder to the device (or direct to the computer if it's got a video input). If the video recorder has got 'RCA' (= 'phono') output sockets you simply need a three-core 'phono-to-phono' cable. (They're easily obtainable online or in discount shops. Maplin sell them but they're far from cheap there).
If the VHS recorder has only got a Scart output you'll then (obviously) need a 'Scart-to-phono' lead. You can sometimes find them in discount stores or you can buy one cheaply online. (Again, Maplin sell them - but at a price!).
Using Pinkyboyid's device (or your computer's own video input, if applicable) will only convert the VHS recording to a digital file on your computer. You'll then need to use the normal disc-burning software on your computer to create a DVD.