XDSL Network
Use DIGITAL SUBSCRIBER LINE (DSL) technologies known. Are: 1. ADSL: ASYMMETRIC DIGITAL SUBSCRIBER LINE, 2. SYMMETRIC DIGITAL SUBSCRIBER LINE, SDSL3. VERY HIGH-BIT-RATE DIGITAL SUBSCRIBER LINE (VDSL) 4. WDSL, DSL - LITE, RADSL, HDSL 2, MSDSL, IDSL and other proprietary technologies.

Xeon Processor
The full name of INTEL PENTIUM II XEON, Intel (INTEL)'s new X86 processors (PROCESSOR) name, designed for the high-end server (SERVER) to use. XEON follow the use PENTIUM II architecture (P6 MICROARCHITECTURE) in DYNAMIC EXECUTION and DUAL INDEPENDENT BUS (DIB), and add several new features, operation clock (FREQUENCY) from the 400 MHZ start is the fastest processor INTEL present. NON-BLOCKING L1 CACHE total of 32 KB (16 KB DATA/16 KB INSTRUCTION ), L2 CACHE for 512 KB or 1 MB, with the processor core (CORE) at the same time clock operation, the largest cache addressing 64 GB. FSB using the 100 MHZ, the biggest SMP architecture can be used simultaneously eight processors, support for 8-way ( 8-WAY) or more cluster (CLUSTERING) technique using 36-bit (BIT) memory addresses, operating system (OS) and application-addressable memory Chaoguo 4 GB. ECC (ERROR CHECKING AND CORRECTION) function used in the L2 with the system bus (BUS). FRC (FUNCTIONAL REDUNDANCY CHECKING) capabilities comparable to the two-processor computing the results to verify the information is correct and consistency. XEON is the first to offer SMB (SYSTEM MANAGEMENT BUS) interface (INTERFACE) treatment device, SMB consists of two components is used to help manage the system: 1. PROCESS INFORMATION ROM (PIROM): there is ROBUST ADDRESSING HEADER, CACHE specifications, PART and the S-SPEC numbers and 64-bit processor serial number .2. SCRATCH EEPROM: the factory, and no information is primarily used for manufacturers to place their own definition of information in order to facilitate the systematic follow-up management companies to use. XEON using SEC (SINGLE EDGE CONTACT) packaging, within the thermal unit (THERMAL SENSOR) can be return processor temperature, the slot size is called SLOT 2, there are 330 contacts.

Xerox PARC Palo Alto Research Center
Xerox (XEROX) the company's research center is a very important technology, the birthplace of the computer industry, GUI and OOPL other ideas all come from this.

XML Extensible Markup Language
Shorthand for Extensible Markup Language, developed by the W3C. XML is a simplified version of SGML, designed specifically for Web documents, Web designers can define their own label (TAG) of the HTML extension specification allows users to design their own structured information and file formats, and the provision of data storage, receiving with the application of the standard description method. Can XML standard format, as HTML's network, depending on whether the browser supports it. Microsoft IE 5 can handle, while Netscape is still in testing stage.