Internet ports

The components of the data acquisition system are communicating with each other via Internet protocol (TCP/IP). For instance, detectors are listening at Internet ports for commands to change their mode of operation and broadcast acknowledgments which are intercepted by the experiment control program. This is, in general, accomplished by a network of computers working under various Unix variants. It is thus very helpful, if the user has some experience in Unix. This starts from the question of how to check the raw data files for completeness and ends with complex scripts to simplify the control of the experiment. ... 

Remote communications allow a distant user to know the situation of the fuel cell system through a monitoring device. If the monitoring device is a computer, the user can remotely control and operate the fuel cell system. Remote communications can be through wireless, telephone line, or Internet. Broadband Internet can transport a large amount of data at faster rates. Wireless connections will be the choice when there is no telephone line or Internet port at the location where the fuel cell system is used. 

A first port of call for checking out available crystallographic software. Links to and mirrors of single crystal and powder crystallographic software. Includes tutorials for some of the software and lists of available software Free CD ROM containing various Internet available single crystal and powder diffraction software and resources. Mainly intended for academics and students in the developing world... 

Because some institutions ban traffic from nonstandard ports like 9081, it is intended eventually to change the url to http //cassini.nesc.gla.ac.uk/wps/portal. Certain features of the site require a modern version of Java, but this is not required for the actual BLAST search. The choice of web browser should not be critical, but if one has problems with older browsers (e.g., Internet Explorer 5.1 for Macintosh) one is advised to try a more modern browser. 

For many people the internet will be the first port of call. Relatively few references to web sites have been included, as many tend to be ephemeral usually produced in a wave of enthusiasm and then left to quietly moulder. 

Nova Borealis Compouids LLC, 176 Thomas Rd, Port Munay, NJ, 07865, USA (Tet 908-850-6200 FAX 908-850-1236 Internet www.nova-borealis.com)... 

Gas Works Industrial Estate, Victoria Rd, Port Talbot, West Glamorgan, SA12 6DB, Wales UK (Tel 44 1639 886236 FAX 44 1639 889047 E-mail sales celticchemicals.co.uk Internet www.celticchemicals.co.uk)... 

The first version of HTTP was very much a proof of concept and did little more than the basic interchange. This has become known as HTTP/0.9. The function of HTTP is, given a URI, retrieve a document corresponding to that URI. As all URIs in the prototype Web were URLs, they contained the Internet address of the server that held the document being requested. It is therefore possible to open a standard Internet connection to the server using TCP (or some other similar protocol). The connection is always made to port 80 of the server unless the URI address specifies a different port. HTTP then defines the messages that can be sent across that connection. 

All automobiles produced recently include many processors and sensors, as well as a variety of networks for sensing, control, and entertainment systems. For example, hundreds of sensor parameters are accessible through the on-board diagnostic port. However, there are no connections between these networks and external communications systems, such as cellular phones. The Automotive Multimedia Interface Collaboration (AMI-C) has been working on ways to connect these networks and provide standardized buses in automobiles so a wide range of consumer electronics can be installed. This would create an automotive intranet that could then be conveniently accessed via the Internet (AMI-C, 2001). Ports on the bus could include any of a number of radios, so wireless devices in the vehicle could become part of the intranet, or short-range high-speed communications could be possible between a vehicle and a residence or service station. 

A key component of the architecture envisioned in the AMI-C standard is a gateway that separates proprietary and safety-sensitive systems in the automobile from after-market consumer electronics. The gateway would have separate ports for interfacing with legacy networks and consumer buses. The gateway would also host software for managing the various services envisioned for internet-connected vehicles. For example, maintenance information would enable manufacturers to learn how their vehicles are actually used or enable consumers to evaluate the need for repairs and determine the effectiveness of repairs by... 

It is possible to warm up the grill before arriving home by connecting to the Internet and attaching an iGrill to a USB port. Recipes can also be downloaded directly from the Internet for the iGrill. 

Fig. XI/4.2-1A and D) Internet and other digital network data travel in packets of limited sizes. Consists of the Data, Ack, Request or Command, Protocol Information, Source and Destination IP Address, Port Error Checking Code, etc. Filtering consists of examining incoming and outgoing packets compared with a set of rules for allowing and disallowing transmission or acceptance. Rather fast because it really does not check any data in the packet except IP header. Works in the network layer (internet) of the Open Systems Interconnection (OSI) model. Fast but not foolproof. IP address can be spoofed.

Throughout this book, I list sources of infonnation of value to gamma spectrometrists. The reality of life in 2007 is that, for very many people, the Internet is the first port-of-cair for information. Because of this, 1 have leaned heavily on Internet sources and quoted links to them as standard URLs - Uniform Resource Locators, i.e. Internet addresses, to suitable websites. URLs are usually not case-sensitive . However, that depends on the type of server used to host the website. It is better to type the URL as given here, i.e. preserving upper/lower-case characters. 

Once the need for a network has been determined, the locations of terminals, servers, and information storage equipment must be established. Local area networks (LANs) and the worldwide web (WWW, or Internet) can link access points located in adjacent rooms or halfway around the world. However, it is critical that the network uses consistent computer and data transmittal protocols in order to provide uninterrupted, information handling in an efficient manner. For example, serial communication via an RS-232 port is relatively common, but too slow for most machine applications. Ethernet communication via transmission control protocol/Internet protocol (TCP/IP) is a preferred method because most equipment suppliers offer this network option. The TCP/IP method allows computers to share resources, no matter whether the operating system is for an Apple , a version of the Microsoft operating system for PCs, or the UNIX operating system. Also, the Semiconductor Equipment Communication Standard (SECS)/Generic Equipment Model (GEM) is widely used as the interface between the host computer and assembly machines. 

While 90% of the world s goods are moved by ships, the widespread infrastructural deficiencies cause inefficiencies in linking the shipments to overland and air routes. The lack of real-time communication with banks, transport providers (including ports) and cargo owners is crucial. The bill of lading must be processed by banks, and ports facilitate customs clearance. In addition to the internet, private conununication chamiels such as VPN, are being used increasingly to connect the... 

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