Add-in cards for micro computers; add-on-cards for computers; apparatus for data communications between computers; apparatus for linking computers; apparatus for linking computers into networks; apparatus for protecting computers from electrical power supply faults; apparatus for use in communications between computers; audiovisual display apparatus adapted for use with computers; audiovisual display apparatus for use with computers; automatic printers for use with computers; cabinets adapted to hold computers; cards bearing data for use in computers; cards for use with computers (encoded or magnetic); cartridges (software) for use with computers; circuit boards for use with computers; circuits for computers; compact disc players for use with computers; component parts for computers; components for computers; computer software adapted for use in the operation of computers; computers; computers and electronic processing units; consoles for use with computers; control apparatus for computers; data carriers for computers having software recorded thereon; data input apparatus for use with computers; data processing apparatus for use with computers; data recording materials for use with computers; data storage apparatus for computers; devices for converting image information to digital signals for computers; devices for use in the networking of computers; disc (disk) drives for computers; disc drives (for computers); disc drives for use with computers; disk drives (for computers); display apparatus for use with computers; display terminals for use with computers; electric devices for transmission of data between computers; electric leads for use with computers; electrical cables for connecting computers; electrical communications apparatus for use with interconnecting computers; electrical connectors for connecting laptop computers to telephone lines; electrical data input apparatus for use with computers; electrical data output apparatus for computers; electronic circuIts for use with computers; electronic devices for the transmission of data between computers; electronic memories for computers; electronic memory units for computers; fibre optics communications installations for use with computers; home computers; housings for computers; input apparatus for transferring data from computers; input apparatus for transferring data to computers; input apparatus for use with computers; input apparatus for use with computers for handling data; input devices for computers; insert cards (printed circuit boards) being parts of computers; installations for use in the networking of computers; interface boards for computers; interface cards for computers; juke boxes (for computers); keyboard apparatus for use with computers; keyboards for entering information into computers; keyboards for use with computers; laptop computers; magnetic disks for computers; magnetic tape drives for computers; magnetic tape units (for computers); mainframes (computers); memories for computers; memories for use with computers; memory controllers for use with computers; memory devices bearing programmes for use with computers; mice for computers; monitors for use with computers; notebook computers; personal computers; personal home computers; plug-in components for computers; portable computers; power supplies for computers; storage discs for use with computers; telecommunications apparatus for transferring data to computers; telecommunications apparatus for transmitting data for use with computers; terminals for computers; work stations (computers)