Computer networks applications pdf

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Computer Networks Notes. Besides Internet services of videotrasmission, transmission proper and the network has a lot of other functions and picture data storage — Picture Archiving and helps to operate many different services. The transmission medium of the Metropolitan network is an optical fibre.

The routes in the town are either 2. The optical cable is combined, it contains 32 SM There is a complex computer network fibres and 8 MM fibres. The reason is quite operating in Brno, built and presently owned practical, the cost of active end elements of by local universities of the town.

MM fibre is substantially lower. The central installed. In a consortium of 18 national and can obtain picture data from those networking oraganizations was founded, one of modalities. The European backbone communication with a hospital info system was realized in In the same year the radiology info system and acquires the TEN—34 CZ project was launched with the aim necessary data of currently running procedures of building the Czech national backbone of the that may, if necessary archived in the database same speed as the European one.

The first line together with picture data. Thus the possibility with their faculties and departments, the of connecting any further institution capable institutes of the Czech Academy of Sciences, of communicating in this standard is possible courts of justice, some offices of local even independently of the manufacturer.

The authorities, business firms, as well as most of product guarantees total collection of data, local hospitals and medical institutions if archiving and administering them via the located on the optical route. At the moment the Informix database , their retrieval and network consists of 50 km optical routes and presentation in specialized client work- 62 nodes each with its internal subnetwork.

All the data can is permanently reserved for medical data be stored in Single Frame or Multi Frame transmission and picture information. In the static or dynamic format. A possible For collecting, processing, archiving, and parallel creation of a picture database for both imaging, the PACS produced by Rasna the research and the teaching process seems Imaging Sytem Italy was bought; its very promising.

The system is very demanding and has to be 6. A sufficient transmission capacity and The inctreasing volume of multimedia subsequent reliability appear as seriously transmission makes heavy demonds on arterial limiting factors. A solution would certainly networks.

This is the reason why wave increase not only the quality of diagnostics but multiplexes are considered for more extensive also the medicare as such. Therefore, some parts of arterial network were measured for the quality and 4. Numerically, it is possible to obtain a In the case of more advanced dispersion of 1.

Also the chromatic dispersion hardware is assumed, which enables the was measured within the range of the above DICOM format output mentioned speeds. Favourable values of - to ensure archiving great volumes of data, dispersion result from the following formula - to provide the possibilty of data processing i.

Two simultaneously solved creating databases of image data that could be issues — the pictue transmission in medicine viewed via the web interface and the growing demands on the comlputer - to provide the possibility of holding network quality were presented.