Medieval realms : Britain 1066-1500 : teacher's guide.
British Library.
Open University.
London : British Library,
1994.
Cover title
"An interactive multimedia CD-ROM".
Produced by The British Library, with software developed by the Open University.
System requirements: PC compatible with 386SX processor, 2Mb RAM, SVGA Graphics (256 colours), MS-DOS 3.0, Windows 3.1, Windows-compatible Mouse, CD-ROM Drive.
System requirements: PC compatible with 386DX processor, 4 Mb RAM, SVGA Graphics (256 colours), MS-DOS 5.0 or later, Windows 3.1 or later, Windows-compatible Mouse, CD-ROM Drive, Windows-compatible sound card.