I have 15 years experience of systems management and have supported some of the most prominent companies in the world including Sun MicroSystems in the States and in Egypt, Alcatel in Antwerp and Tokyo Mitsubishi Bank in the City of London. Major companies like these use expensive commercial System V operating systems such as Solaris, AIX, or HPUX but increasingly they now integrate LinUX, with their other systems. This same powerful and robust operating system is available to home users to run on their PCs without any licensing charges.
I have been using and supporting LinUX since a student first brought it to my attention at the University of North London in 1985. Home users in the East Midlands can now get Linux installed and 10 hours on site support for less than the the cost of Windows XP.

Charges: £20 per hour, £30 minimum charge).
All prices are subject to 17.5% VAT.