This International Standard specifies the mechanical, physical and optical characteristics of 120 mm rewritable optical disks with capacities of 8,55 Gbytes and 17,1 Gbytes. It specifies the quality of the recorded and unrecorded signals, the format of the data and the recording method, thereby allowing for information interchange by means of such disks. The data can be written, read and overwritten many times using the phase change method. These disks are identified as +RW DL.
定价: 1500元 / 折扣价: 1275 元 加购物车
Specifies the mechanical, physical and optical characteristics of 120 mm rewritable optical disks with capacities of 8,55 Gbytes and 17,1 Gbytes. It specifies the quality of the recorded and unrecorded signals, the format of the data and the recording method, thereby allowing for information interchange by means of such disks.
定价: 1633元 / 折扣价: 1389 元 加购物车
This standard describes services currently in use on IA-32 and IA-64 compatible architecture personal computer systems. These services are provided by BIOS firmware to support hard disks up to 16 megaterabytes (16x1018 bytes). This standard also provides BIOS level services for determining the relationship between BIOS device numbers and the physical mass storage devices attached to the personal computer. The services defined in this standard can be applied to mass storage devices with ATA, ATAPI, SCSI, USB, Fibre Channel, 1394, I2O, and other interfaces. In addition, this standard defines the following: 1. Formatting required to make a CD or DVD bootable; 2. INT 13 services used to access devices <8GB; 3. Addressing information for Infiniband, Serial ATA, Hypertransport, and PCI Express.
定价: 570元 / 折扣价: 485 元 加购物车
ISO/IEC 10746 provides a coordinating framework for the standardization of open distributed processing (ODP). This supports distribution, interworking, portability, and platform and technology independence. It establishes an enterprise architecture framework for the specification of ODP systems. ISO/IEC 10746 defines the essential concepts necessary to specify open distributed processing systems from five prescribed viewpoints. It provides a well-developed framework for the structuring of specifications for large-scale, distributed systems
定价: 902元 / 折扣价: 767 元 加购物车
Provides a coordinating framework for the standardization of open distributed processing (ODP). This supports distribution, interworking, portability, and platform and technology independence. It establishes an enterprise architecture framework for the specification of ODP systems. Defines the essential concepts necessary to specify open distributed processing systems from five prescribed viewpoints.
定价: 978元 / 折扣价: 832 元 加购物车
Provides a coordinating framework for the standardization of open distributed processing (ODP). This supports distribution, interworking, portability, and platform and technology independence. It establishes an enterprise architecture framework for the specification of ODP systems. Defines the essential concepts necessary to specify open distributed processing systems from five prescribed viewpoints. It provides a well-developed framework for the structuring of specifications for large-scale, distributed systems.
定价: 1471元 / 折扣价: 1251 元 加购物车
Defines a format known as Canonical XTM, or CXTM for short. The format is an XML format, and has the property that it guarantees that two equivalent Topic Maps Data Model instances (ISO/IEC 13250-2) will always produce byte-by-byte identical serializations, and that non-equivalent instances will always produce different serializations. CXTM thus enables direct comparison of two topic maps to determine equality by comparison of their canonical serializations. The purpose of CXTM is to allow the creation of test suites for various Topic Maps-related technologies that are easily portable between different Topic Maps implementations, so long as these support CXTM. CXTM is not intended to be used for the interchange of topic maps, although this is possible. The standard format for interchange of topic maps is XTM (ISO/IEC 13250-3).
定价: 475元 / 折扣价: 404 元 加购物车
This part of ISO/IEC 13888 serves as a general model for subsequent parts specifying non-repudiation mechanisms using cryptographic techniques. ISO/IEC 13888 provides non-repudiation mechanisms for the following phases of non-repudiation: ⎯ evidence generation; ⎯ evidence transfer, storage and retrieval; and ⎯ evidence verification. Dispute arbitration is outside the scope of ISO/IEC 13888.
定价: 627元 / 折扣价: 533 元 加购物车
Defines a reference model that specifies common behaviors for SCSI devices and an abstract structure that is generic to all SCSI I/O system implementations. Defines generic requirements that pertain to SCSI implementation standards. It also defines implementation requirements. An implementation requirement specifies behavior in terms of measurable or observable parameters that apply to an implementation.
定价: 1500元 / 折扣价: 1275 元 加购物车
Defines a reference model that specifies common behaviors for SCSI devices and an abstract structure that is generic to all SCSI I/O system implementations. Defines generic requirements that pertain to SCSI implementation standards. It also defines implementation requirements. An implementation requirement specifies behavior in terms of measurable or observable parameters that apply to an implementation.
定价: 1633元 / 折扣价: 1389 元 加购物车
ISO/IEC14776-453:2009(E) defines the SCSI commands that are mandatory and optional forall SCSI devices. Support for any feature defined in this standard is optionalunless otherwise stated. This standard also defines the SCSI commands that mayapply to any device model.
定价: 546元 / 折扣价: 465 元 加购物车