Computer systems; Data terminals for the communication of data to a central computer system; Data terminals for the entry of data to a central computer system; Memory boards; Memory cards; Memory cards containing microprocessors; Memory cards for video game machines; Memory cartridges for hand-held electronic game apparatus; Memory cartridges on which computer programs are stored; Memory expansion cards; Memory modules; Readers for memory cards; Solid-state memory devices; Computer keyboards; Electric keyboards for data input; Function keyboards; Keyboard amplifiers; Keyboard switches; Keyboard terminals; Keyboards for data entry; Keyboards for entering information into computers; Keyboards for use in data entry; Keyboards for use with computers; Telephone keyboards; Word processors comprising keyboards; Computer mouses; Mats for use with a computer mouse; Mouse (computer peripherals); Mouse controllers; Mouse mats for use with computer apparatus; Mouse pads; Mouse pointing apparatus; Mouses (data processing equipment); Camera cases adapted or shaped to contain a camera; Mobile phone cases; Electric power supply units; Portable power supply apparatus (batteries); Power supply apparatus (batteries); Power supply devices (batteries); Power supply devices for battery chargers; Power supply units (batteries); Static power supply units; Uninterruptable power supply instruments; Uninterruptible power supply apparatus (battery); Adaptors for connecting telephones to hearing aids; Adaptors for converting alternating current to direct current; Adaptors for converting direct current to alternating current; Adaptors for use with electric plugs; Alternating current adaptors; Battery adaptors; Electrical adaptors; Plug adaptors for headphones; Travel adaptors for electric plugs; Earphones (other than hearing aids for the deaf); Earphones for radios; Earphones for recording apparatus; Audio speakers; Monitor speakers; Speakers (audio equipment); Speakers for computers; Notebook computers; Digital tablets; Tablets for computers; Computer cards (smart); Smartphones; Storage cards (smart cards); Audio cable; Audio cable connectors; Hard drive recorders for use with television receivers; Hard drives; Headphones; Headphones for microphones; Stereo headphones; Stereo headphones for personal entertainment use; Communication modems; Computer communications modems; Computer modems; Modems; Modems for communications networks; Telephone modems; Camera housings; Camera mounts; Cameras; Closed circuit television cameras; Video cameras; Video surveillance cameras; Colour monitors; Computer display monitors; Computer monitors; Display monitors; High resolution monitors; Monitors; Monitors for use with computers; Television monitors; Video monitors