Specifies a language-independent nucleus of a graphics system. For integration into a programming language, GKS is embedded in a language-dependent layer obeying the particular conventions of that language. This part of ANSI X3.124 specifies such a language-dependent layer for the Pascal language.
定价: 570元 / 折扣价: 485 元 加购物车
Describes the arrangement of the 48 basic keys on the keyboard and the uppercase and lowercase characters that appear on the keys. The character assignments are divided into five application areas, in recognition of the different graphic character requirements of each application. For an electronic draft, order from NCITS Storefront at: http://www.cssinfo.com/cgi-bin/detail?product_id=56160
定价: 570元 / 折扣价: 485 元 加购物车
This standard specifies the general, physical, and magnetic requirements for interchangeability for the two-sided, 5.25~in (130-mm), 96-tracks-per-inch (tpi) (3,8-tracks-per-millimeter (tpmm)) flexible disk cartridge (for 13 262 flux-transitions-per-radian (ftpr) use) as required to achieve unformatted disk cartridge interchange among disk drives using 77 or 80 tracks per side and associated information processing systems. The two-sided flexible disk cartridge enclosed in a protective envelope and having two recording surfaces is of the type intended specifically for use with digital recording and reproducing equipment employing access mechanisms capable of positioning to these data tracks.
定价: 570元 / 折扣价: 485 元 加购物车
Specifies the general, physical, and magnetic requirements for interchangeability for the two-sided, 5.25-in (130-mm) flexible disk cartridge (for 13262 flux transitions per radian use) as required to achieve unformatted disk cartridge interchange among disk drives using 77 or 80 tracks per side and associated information processing systems.
定价: 570元 / 折扣价: 485 元 加购物车
Lays down rules for converting between 58 characteristics of CCITT International Telegraph Alphabet No. 2 (Recommendation F.1) and the characters according to the ISO 646 and 6937-2 coded sets. Serves for interaction between international telex service and terminals in data networks if telex character repertoire is sufficient.
定价: 323元 / 折扣价: 275 元 加购物车