what is the diffrence between IDF and MDF rooms for telecomunications?
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IDF - Intermediate Distribution Frame (Wire Closet)\nMDF - Main Distribution Frame (Central Data Center)
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It is a form of writing that contains tons of jargons that only a selected few can understand, often stretching the simple into massively complicated structures to impress its readers and bewilder the masses.\n\nSample:\n\nMultimode Fiber with a 50-Micron Core (ITU-T G.651)\nThe ITU-T G.651 is an MMF with a 50-m nominal core diameter and a 125-m nominal cladding diameter with a graded refractive index. The attenuation parameter for G.651 fiber is typically 0.8 dB/km at 1310 nm. The main application for ITU-T G.651 fiber is for short-reach optical transmission systems. This fiber is optimized for use in the 1300-nm band. It can also operate in the 850-nm band.
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It is .csv format - as for EXCEL. For daily data:\n"symbol", last trade, "DATE", "TIME", CHANGE, OPEN, HI, LO, VOLUME.  Historic data is slightly different.  Contact cvf8
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The big difference is the thruput that Dual channel gives you. That only really happens when you you're running MASSIVE Data crunching on your computer. If you're doing basic web browsing and document creation, you'll see almost no difference.
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it's really personal preference, i have at least one with almost every IM service out there, that's why i use Gaim, it's a free and open-source IM client that works for every one of them out there, it has almost all features of every one of them and it's just one program so you don't have to have 10 of them open at once, it's outstanding.  i've had an icq account for almost 10 years now, 2 AIM accounts, 2 MSN accounts, 1 Yahoo, 1 google talk, and 1 standard Jabber, not to mention IRC servers i idle on, Gaim handles those too.  but when you can use something like Gaim there's really no reason you should limit yourself to one particular service.
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Excepting that they sound similar, there are no other similarities.\n\nMultiplexing\nMultiplexing allows you to share a uncommon resource.\nJust like People in an office share a common printer.\n\nModulation\nModulation provides a means of transferring information.\nJust like a envelop(a carrier) holds the written message (infmn) in a post.
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I don't know enough to answer your question myself, but the Wikipedia can.  Here's some links:\n\nISDN: http://en.wikipedia.org/wiki/ISDN\n\n"In a videoconference, ISDN provides simultaneous voice, video, and text transmission between individual desktop videoconferencing systems and group (room) videoconferencing systems."\n\nBRI and PRI are configurations of ISDN.  PRI is a standard in telecommunications.\n\nBRI: http://en.wikipedia.org/wiki/Basic_Rate_Interface\nPRI: http://en.wikipedia.org/wiki/Primary_rate_interface\n\nBRI and PRI are different configurations for sending the information between locations.\n\nFrom reading about ISDN on Wikipedia it seems it was built for videoconferencing and therefore I would suggest using it as the preferred method.\n\nAlso on those pages you will find: "In the Integrated Services Digital Network (ISDN), there are two levels of service: the Basic Rate Interface (BRI), intended for the home and small enterprise, and the Primary Rate Interface (PRI), for larger users."\n\nI hope this gives you some perspective and explanation about ISDN and it's intricacies!
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Good question.  There are a lot of options out there, some free, some pricey.  I've used Microsoft netmeeting along with a regular telephone conference bridge for business meetings with overseas divisions.  Works reasonably well.
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S/PDIF\n\nS/PDIF (Sony/Philips Digital Interface) is a standard audio transfer file format. It is usually found on digital audio equipment such as a DAT (Digital Audio Tape) machine or audio processing device. It allows the transfer of audio from one file to another without the conversion to and from an analog format, which could degrade the signal quality. \nThe most common connector used with an S/PDIF interface is the RCA connector, the same one used for consumer audio products. An optical connector is also sometimes used.
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Im pretty certain that word is just a slightly different version of the rtf specification so you should be able to parse most of it with rtf.\n\nHope that helps.
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I understood you Pankaj. I went to a business conference last month, MBS Convergence. MSCRM looks really good. Here is a link to Microsoft's implementation guide.  In the pdf document, found in the compressed file, there are a few sections on "Managing Implementation". The information looks very similar to some of the break-out session I attended. good luck with your preparations. -r
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RTF, or Rich Text Format, is a very compatible format and is even human readable. Because it can be used by so many programs (including use on the Macintosh platform), it cannot use traditional compression technicques employed by similar file types (such as .DOC).
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It's too complicated to squeeze in an explanation in this space and do the topic justice.  Instead, I will suggest the following on-line resources:\n\nQuite a few links on this list:\nhttp://www.mobileinfo.com/hot_topics/SpeechRecognitionInWireless.htm\n\nhttp://wirelessspeech.blogspot.com/2006/10/when-will-distributed-speech.html\n\nhttp://www.merl.com/projects/?proj_area=Spoken+Language+Interfaces\n\nSee especially pages 10 - 15 in this one:\nhttp://av.rds.yahoo.com/_ylt=A9ibyKLBe1RF1vUA.BmDBqMX;_ylu=X3oDMTBwMjNqdWVsBHBndANhdHdfd2ViX3Jlc3VsdARzZWMDc3I-/SIG=12pdc0q4o/EXP=1163251009/**http%3a//dingo.sbs.arizona.edu/%7eyinglin/LING539/slides/1_overview.ppt
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To elaborate further, your mode does tell you what the most common value in your data is, but, like the median, it's a somewhat arbitrary value.  For example, take the data set 1,2,2,3,7.  Both the mode and the median are 2, and the mean is 3.  Now take the data set 1,2,2,25,50.  Again, the mode and the median are both 2, but the mean is now 16.  Now, say that second data set represents the number of shark attacks that have happened in the past 5 years off the coast of a beachfront property you're thinking about buying.  I'd much rather know the mean number of shark attacks, not the mode or the median, wouldn't you?
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ISO/OSI Network Model\nThe standard model for networking protocols and distributed applications is the International Standard Organization's Open System Interconnect (ISO/OSI) model. It defines seven network layers. \n\nLayer 1 - Physical \nPhysical layer defines the cable or physical medium itself, e.g., thinnet, thicknet, unshielded twisted pairs (UTP). All media are functionally equivalent. The main difference is in convenience and cost of installation and maintenance. Converters from one media to another operate at this level. \n\nLayer 2 - Data Link \nData Link layer defines the format of data on the network. A network data frame, aka packet, includes checksum, source and destination address, and data. The largest packet that can be sent through a data link layer defines the Maximum Transmission Unit (MTU). The data link layer handles the physical and logical connections to the packet's destination, using a network interface. A host connected to an Ethernet would have an Ethernet interface to handle connections to the outside world, and a loopback interface to send packets to itself. \n\nEthernet addresses a host using a unique, 48-bit address called its Ethernet address or Media Access Control (MAC) address. MAC addresses are usually represented as six colon-separated pairs of hex digits, e.g., 8:0:20:11:ac:85. This number is unique and is associated with a particular Ethernet device. Hosts with multiple network interfaces should use the same MAC address on each. The data link layer's protocol-specific header specifies the MAC address of the packet's source and destination. When a packet is sent to all hosts (broadcast), a special MAC address (ff:ff:ff:ff:ff:ff) is used. \n\nLayer 3 - Network \nNFS uses Internetwork Protocol (IP) as its network layer interface. IP is responsible for routing, directing datagrams from one network to another. The network layer may have to break large datagrams, larger than MTU, into smaller packets and host receiving the packet will have to reassemble the fragmented datagram. The Internetwork Protocol identifies each host with a 32-bit IP address. IP addresses are written as four dot-separated decimal numbers between 0 and 255, e.g., 129.79.16.40. The leading 1-3 bytes of the IP identify the network and the remaining bytes identifies the host on that network. The network portion of the IP is assigned by InterNIC Registration Services, under the contract to the National Science Foundation, and the host portion of the IP is assigned by the local network administrators, locally by noc@indiana.edu. For large sites, usually subnetted like ours, the first two bytes represents the network portion of the IP, and the third and fourth bytes identify the subnet and host respectively. \n\nEven though IP packets are addressed using IP addresses, hardware addresses must be used to actually transport data from one host to another. The Address Resolution Protocol (ARP) is used to map the IP address to it hardware address. \n\nLayer 4 - Transport \nTransport layer subdivides user-buffer into network-buffer sized datagrams and enforces desired transmission control. Two transport protocols, Transmission Control Protocol (TCP) and User Datagram Protocol (UDP), sits at the transport layer. Reliability and speed are the primary difference between these two protocols. TCP establishes connections between two hosts on the network through 'sockets' which are determined by the IP address and port number. TCP keeps track of the packet delivery order and the packets that must be resent. Maintaining this information for each connection makes TCP a stateful protocol. UDP on the other hand provides a low overhead transmission service, but with less error checking. NFS is built on top of UDP because of its speed and statelessness. Statelessness simplifies the crash recovery. \n\nLayer 5 - Session \nThe session protocol defines the format of the data sent over the connections. The NFS uses the Remote
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what stream type, mms, pls, m3u, wmv, cab - each stream type has its own data formating
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http://jfi.sagepub.com/cgi/content/abstract/20/5/602