In January 1996, A-Z released its first mapping for the desktop PC. A-Z Maps On CD-ROM started as a black and white map of London with an interactive street index. It required an IBM compatible PC with a 286 (or later) processor, 640k RAM, and 7MB of free disk space. The maps were not copied to the hard disk, so the CD-ROM had to remain in the drive to use the product. The underlying software, MapEngine, was developed from a project to archive microfiche records to CD. Over the following years we released a Windows application with colour mapping for many British towns and cities. A professional version allowed users to customise the map display, link to GPS and to add their own data. Vehicle recovery companies and taxi operators developed solutions to display the locations of their vehicles and customers in real-time.