IA-32, IA-64 Intel Architecture (Intel Architecture)
Both IA-32 or IA-64, both Intel (Intel) its processor architecture known, while the 32,64 and other figures representing the 32-bit with 64-bit processor.
Intel introduced the first generation of processors with a number 8086 name, followed by products in sequence to 8088,80186,80188 etc., code-named termed; while the series last generation 80286 processor, after the release of Intel that is replaced by i386, i486 named, they have been the outside world is called X86 architecture.
Introduction of i486 processors, Intel will no longer X86 named, but in order to more formal IA (Intel Architecture) alleged that the schema.
In 1999, Intel introduced the IA-64 architecture's first one chip is called the "Merced", includes a variety of new technologies, and the IA-32 (X86) compatible. 2003 re-release of Itanium 2 (R & D Code: madison), is the Itanium processor family's third generation.
IAC Internet Access Coalition
1 by several companies and the Internet (INTERNET) composed of the companies concerned agencies, major objective is the promotion and maintenance of use of telephone lines connected to the Internet for convenience and cost.
IAD Integrated Access Device
IAD (Integrated Access Device) IAD is to be placed on the client for connecting digital subscriber line (DSL) can provide the user a variety of services to the device. With the Internet boom, the user docking to take network (Access Network) transmission speed of the growing demand, prompting carriers to accelerate DSL network of the building. DSL network technology to upgrade the existing twisted-pair telephone line for sending bandwidth to provide data and video services. Although the data News Service volume rapidly increased, but carriers of the revenue is still voice-service oriented. Therefore, how to lease access network to increase voice services, will become carriers concerned about the issue.
Voice in the digital subscriber line (Voice over Digital Subscriber Line, VoDSL) Transfer of technology is an important one of the technologies, VoDSL technology uses a pair of copper wires to provide high-speed Internet access and multiple telephone service, telephone service and also has a traditional circuit-switched PSTN (Public Switched Telephone Network) network transmission quality of service (Quality of Service, QoS) features. VoDSL architecture include: integrated access devices (IAD, Integrated Access Device), subscriber line access multiplexer (DSLAM, Digital Subscriber Line Access Multiplexer), ATM digital switching (ATM Network) and Voice Gateway (Voice Gateway) and so on. Voice and data via subscriber line access multiplexer (Digital Subscriber Line Access Multiplexer) multi-tasking, the data section via the data public networks entered the Internet, while the voice portion via the data public networks, by the voice gateway device (Voice Gateway) with the traditional fifth class (Class 5) voice telephone exchange community access into the public telephone network.
IAD functions as the dividing line when the multiplex (TDM) or circuit signal and the packet signal of the conversion and data signals and voice signals of the split / consolidation, including: transport format changes, the agreement the conversion, the message priority transmission, etc. In addition to this the outside to take care of Voice Activity Detector (VAD), CNG (Comfort Noise Generator), silence suppression, voice compression and echo cancellation functions.
Currently VoDSL IAD products are many kinds, WAN interface largely on ADSL, SDSL, HDSL2, and T1/E1 mainly on the client data interfaces, such as the Ethernet interface, USB interface or an ATM25 interface, POTS number is between 4 ~ 24 between the products of foreign brands dominated, such as the Jetstream, Lucent, CopperCom, Polycom, Efficient, Accelerator, etc.; China currently has ZyXEL product launches, and there are several assessment and research and development, such as the wing group, Accton, D-Link, and Arthur and so on.
IANA Internet Assigned Numbers Authority
An organization funded by the IAB task is to manage and allocate IP address (IP ADDRESS). |
