Provides the mechanical, physical and magnetic properties of a low-friction disk with a diameter of 95 mm (3.740 inches) and with a typical recording density of 31.5 tracks per millimeter (tpmm) (800 trakcs per inch (tpi)) with 567 flux transitions per millimeter (ftpmm) (14 400 flux transitions per inch (ftpi)) at a radius of 23 mm (0.900 inch).

定价： 570元 / 折扣价： 485 元 加购物车

Provides the requirements for a tape cartridge to be used for information interchange among information-processing systems, communication systems, and associated equipment utilizing a standard code for information interchange as agreed upon by the interchange parties.

定价： 570元 / 折扣价： 485 元 加购物车

Provides the requirements for a tape cartridge to be used for information interchange among information-processing systems, communications systems, and associated equipment utilizing a standard code for information interchange as agreed upon by the interchange parties. This standard deals solely with the requirements for recording on magnetic tape.

定价： 570元 / 折扣价： 485 元 加购物车

Provides the requirements for a tape cartridge to be used for information interchange among information-processing systems, communications systems, and associated equipment utilizing a standard code for information interchange as agreed upon by the interchange parties. This standard deals solely with the requirements for recording on magnetic tape.

定价： 546元 / 折扣价： 465 元 加购物车

Covers the optical characteristics of a printed bar code symbol. This document shall be used with the appropriate application specifications, or symbology specifications, or both. The appropriate application specifications, or symbology specifications, or both, shall take precedence over this guideline.

定价： 570元 / 折扣价： 485 元 加购物车

Provides the mechanical, electrical and signalling protocol specifications for an efficient simplex high-performance point-to-point interface between pieces of data-processing equipment. The interface described in this document can be operated at peak data rates of 800 or 1600 Mbit/s, over distances of up to 25m by means of copper cabling. A distance-independent signalling protocol allows the average data rates to approach the peak data rates, even over distances longer than specified for the HIPPI-PH.

定价： 570元 / 折扣价： 485 元 加购物车

Specifies a Hybrid Ring Control (HRC) protocol that provides a mode of operation in which both packet switched and isochronous data are transmitted within the same special frame structure, called a cycle.

定价： 570元 / 折扣价： 485 元 加购物车

Presents the minimum requirements for the mechanical and magnetic interchangeability of the cassette between information processing systems, using the physical recording density of 394 ftpmm (10 000 ftpi).

定价： 546元 / 折扣价： 465 元 加购物车

Specifies test methods for media characteristics of 356-mm nominal diameter optical disk cartridges used for information processing systems and for information storage.

定价： 570元 / 折扣价： 485 元 加购物车

Covers the physical dimensions of take-up (or storage) reels, with either fixed or separable flanges, so that reels of perforated tape may be interchanged among machines of various manufacturers, and is intended to serve as a guide in the coordination of equipment design.

定价： 570元 / 折扣价： 485 元 加购物车

Provides the requirements for the helical-scan recording method and the Digital Data Storage (DDS) recorded format of a 3.81-mm (0.150-in) magnetic tape cartridge to be used for information interchange between information processing systems. Information interchange between information processing systems requires the use of this standard in conjunction with the unrecorded tape and cartridge requirements provided by the American National Standard for Information Systems - Unrecorded Helical-Scan Digital Computer Tape Cartridge for Information Interchange, 3.81-mm (0.150-in), ANSI X3.206-1993.

定价： 570元 / 折扣价： 485 元 加购物车

This standard provides the requirements for the Helical-Scan recording method and the DATA/DAT recorded format of a 3.81 mm (0.150 in) magnetic tape cartridge to be used for information interchange between information processing systems.

定价： 570元 / 折扣价： 485 元 加购物车

Provides a performance-oriented keyboard arrangement to the keyboard presented in American National Standard for Office Machines and Supplies-Keyboard Arrangement for Alphanumeric Machines, ANSI X3.154. This standard describes the arrangement of the 48 basic printing keys on the keyboard and the characters, uppercase and lowercase, that appear on the keys.

定价： 570元 / 折扣价： 485 元 加购物车

Provides a performance-oriented keyboard arrangement to the keyboard presented in American National Standard for Office Machines and Supplies-Keyboard Arrangement for Alphanumeric Machines, ANSI X3.154. This standard describes the arrangement of the 48 basic printing keys on the keyboard and the characters, uppercase and lowercase, that appear on the keys.

定价： 546元 / 折扣价： 465 元 加购物车

The standard specifies the characteristics of 130-mm optical disk cartridges (ODC) of the type providing for information to be written, read, and erased many times using the magneto-optical effect. ANSI X3.212:1992 specifies - definitions of the essential concepts, - the environment in which the characteristics shall be tested, - the environments in which the cartridge shall be operated and stored, - the mechanical, physical, and dimensional characteristics of the case and of the optical disk, - the magneto-optical characteristics and the recording characteristics for recording the information and for erasing it many times, so as to provide physical interchangeability between data processing systems.

定价： 546元 / 折扣价： 465 元 加购物车