Text and office systems - Keyboards - Part 12: German keyboard for data and text processing; Key arrangement and allocation for portable computers— 11 стр.
Text and office systems - Keyboards - Part 2: German keyboard for data and text processing; Key arrangement and allocation of graphic characters to keys— 38 стр.
Information processing; flexible disk cartridge 200 using one or two sides; electromagnetic properties at 13 262 flux transitions per rad, two-frequency recording mode or modified frequency modulation recording— 5 стр.
Information processing; flexible disk cartridge 130 using one or two sides; electromagnetic properties at 7958 flux transitions per rad, two-frequency recording mode or modified frequency modulation recording— 4 стр.