51. Ribbons and spools used on office machines and data processing equipment. Recommendations for widths of fabric printing ribbons on spools exceeding 19 mm wide Part 5, (30th December 1977) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
52. Ribbons and spools used on office machines and data processing equipment. Specification for widths of fabric printing ribbons on spools up to 19 mm wide Part 2, (30th June 1982) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
53. Ribbons and spools used on office machines and data processing equipment. Widths of one-time paper or plastic printing ribbons up to 19 mm wide and marking to indicate the end of the ribbons Part 3, (31st October 1977) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
54. S5/8 serial interface for the interconnection of data processing equipment. (31st October 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
55. Safety of information technology equipment including electrically operated business equipment. (31st October 1985) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (146 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
56. Specification for keyboard allocation of graphic characters for data processing. (31st December 1980) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
57. Specification for layout and operation of keyboards for multiple latin-alphabet languages. (30th June 1990) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
58. Specification for magnetic eleven-disk packs for data processing. Mechanical and magnetic properties. (29th October 1976) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
59. Specification for magnetic single-disk cartridges (top loading) for data processing. Mechanical and magnetic properties Part 1, (30th September 1976) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (32 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
60. Specification for magnetic single-disk cartridges (top loading) for data processing. Track format Part 2, (31st August 1976) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗