What you need:
- A computer to install the LaTeX on.
- A LaTeX editor. This is the piece of software you will use to write your LaTeX files and to generate a final PDF output.
- Somewhere to save all your files.
LaTeX comes in several flavours – they all effectively do the same job. Some are specific to certain platforms (Windows/Mac/Linux/etc.).
I work on Windows and use MikTeX. To download this, go to http://miktex.org/. As of today, the latest stable version is MikTeX 2.7. Click on the link to this under ‘Downloads’ in the navigation bar. You will then find a page with simple installation instructions.
- Installing LaTeX on a Mac – http://guides.macrumors.com/Installing_LaTeX_on_a_Mac
- General guide to installing LaTeX from CTAN (Comprehensive TeX Archive Network) – http://tug.ctan.org/starter.html
University of Cambridge PWF Machines
According to the Cambridge University Computing Service pages, LaTeX and TeX are installed on the Windows PWF machines. For details, see http://www.cam.ac.uk/cs/pwf/pclist.html.
The Engineering Dept. has a useful webpage about LaTeX: http://www.eng.cam.ac.uk/help/tpl/textprocessing/.