Provides the mechanical, physical and magnetic properties of a magnetic disk with an 8.268 in (210 mm) diameter and low surface friction intended for mounting in data storage devices. A typical recording density is 480 tpi with 8464 flux transitions per inch (ftpi) at a radius of 2.978 in (78,64 mm).

定价： 570元 / 折扣价： 485 元 加购物车

Provides the mechanical, physical and magnetic properties of a magnetic disk with an 7.874-in (200-mm) diameter and low surface friction intended for mounting in data storage devices. A typical recording density is 480 tpi with 6858 fluxtransitions per inch (ftpi) at a radius of 2.224 in (56,49 mm).

定价： 570元 / 折扣价： 485 元 加购物车

Specifies the general, physical, and magnetic requirements for interchangeability of the two-sided, 8-in (200-mm) (nominal), 48-tracks-per-inch (tpi), flexible disk caratridge (for 13 262 flux transitions per radian (ftpr) for use) as required to achieve unformatted disk cartridge interchange among disk drives using 77 tracks per side and associated information processing systems.

定价： 570元 / 折扣价： 485 元 加购物车

Specifies the general, physical, and magnetic requirements for interchangeability of the two-sided, 8-in (200-mm) (nominal), 48-tracks-per-inch (tpi), flexible disk caratridge (for 13 262 flux transitions per radian (ftpr) for use) as required to achieve unformatted disk cartridge interchange among disk drives using 77 tracks per side and associated information processing systems.

定价： 546元 / 折扣价： 465 元 加购物车

Specifies a set of functions for computer graphics programming (GKS). GKS is a basic graphics system for applications that produce computer generated two-dimensional pictures on line graphics or raster graphics output devices. It supports operator input and interaction by supplying basic functions for graphical input and picture segmentation and allows storage and dynamic modification of pictures.

定价： 570元 / 折扣价： 485 元 加购物车

Specifies a set of functions for computer graphics programming (GKS). GKS is a basic graphics system for applications that produce computer generated two-dimensional pictures on line graphics or raster graphics output devices. It supports operator input and interaction by supplying basic functions for graphical input and picture segmentation and allows storage and dynamic modification of pictures.

定价： 546元 / 折扣价： 465 元 加购物车

Specifies a language independent nucleus of graphics system. For integration into a programming language, GKS is embedded in a language dependent layer obeying the particular conventions of that language. This document specifies such a language dependent layer for the FORTRAN language

定价： 570元 / 折扣价： 485 元 加购物车

Specifies a language independent nucleus of graphics system. For integration into a programming language, GKS is embedded in a language dependent layer obeying the particular conventions of that language. This document specifies such a language dependent layer for the FORTRAN language

定价： 546元 / 折扣价： 465 元 加购物车

Specifies the general, physical, and magnetic requirements for the interchangeability of the two-sided, 5.25 inch (130 mm) (nominal), 48-tracks-per-inch (tpi) 1,9-tracks-per-millimeter (tpmm) flexible disk cartridge (for 7958 bits-per-radian (bpr) use) as required to achieve unformatted disk cartridge interchange among disk drives using 40 tracks per side and associated information processing systems.

定价： 570元 / 折扣价： 485 元 加购物车

Specifies the general, physical, and magnetic requirements for the interchangeability of the two-sided, 5.25 inch (130 mm) (nominal), 48-tracks-per-inch (tpi) 1,9-tracks-per-millimeter (tpmm) flexible disk cartridge (for 7958 bits-per-radian (bpr) use) as required to achieve unformatted disk cartridge interchange among disk drives using 40 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： 546元 / 折扣价： 465 元 加购物车

This standard specifies the general, physical, and magnetic requirements for interchangeability of the one - or two-sided, 5.25-Inch (130-mm) (nominal), 96-tracks-per-inch (tpi) (3,8-tracks-per-millimeter(tpmm)) flexible disk cartridge (for 7958-bits-per-radian(bpr) use) as required to achieve unformatted disk cartridge interchange among disk drives using 80 tracks per side and associated information processing systems

定价： 570元 / 折扣价： 485 元 加购物车

The revision contains substantive and editorial changes to ANSI X3.137:1988. The standard specifies the general, physical and magnetic requirements for inter-changeability of the one-and two-sided 90mm (3.5 in) (nominal) flexible disk cartridge (for 7958 bits-per-radian (bpr) use) as required to achieve unformatted disk cartridge interchange among disk drives using 80 tracks per side and associated information processing systems.

定价： 570元 / 折扣价： 485 元 加购物车

Provides specifications for format and recording for a 1/2 inch, 9-track magnetic tape to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing ANSI X3.4:1977, American National Code for Information Interchange (ASCII). This standard deals solely with recording on magnetic tape and supports and complements ANSI X3.40:1983, Unrecorded Magnetic Tape for Information Interchange, (9-Track 800 CPI, NRZI, 1600 CPI, PE and 6250 CPI, GCR).

定价： 546元 / 折扣价： 465 元 加购物车

Provides the location of the imprinted account number, area for source ID, amount of transaction, and date of transaction as they appear on 51-column and 80-column card size financial transaction card formsets.

定价： 546元 / 折扣价： 465 元 加购物车

This standard specifies the most commonly used character line spacings for office machines and data processing equipment.

定价： 570元 / 折扣价： 485 元 加购物车