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UMTS: Mobilfunk der dritten Generation (2001)
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- Content
- Enthält die Beiträge: RÖTGER, A.: Die Schritt-Macher; STERBAK, R.: Die Mega-Handys; LANG, M.: Neue Hardware braucht das UMTS-Land; ZÖBELEIN, K.: Dringend gesucht: die Killer-Applikation; OTTEN, D.: Peilstation in der Westentasche; EBERL, U.: UMTS++
- Date
- 31.12.1996 19:29:41
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Duhm, U.: Ring frei zur nächsten Runde (1999)
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- Date
- 1. 8.1997 14:03:29
19. 2.1999 20:21:22
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Eberl, U.: UMTS++ : Perspektiven (2001)
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- Date
- 31.12.1996 19:29:41
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Zöbelein, K.: Dringend gesucht : die Killer-Applikation (2001)
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- Date
- 31.12.1996 19:29:41
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Scheuerer, J.: Onlinebanking (1997)
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- Date
- 1. 8.1997 14:03:29
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- Com!. 1997, H.8, S.22-24
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Fernengel, U.; Flögel, E.; Roberts, S.D.: Datenübertragung mit Heim- und Personal Computern : MODEM und Hacker Handbuch (1992)
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Löns, K.: Kommunikationsnetze und Datenkommunikation (1997)
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Jasper, D.: Alles über Online (1996)
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- Language
- d
- Theme
- Grundlagen u. Einführungen: Allgemeine Literatur
-
Lexikon der Datenkommunikation : [traditionelle Techniken: Ethernet, Token Ring; Highspeed Networking: Gigabit Ethernet, ATM, LAN-Switching; Trends: Virtual LAN, VPN, xDSL-Techniken] (1999)
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- Abstract
- Ob Newcomer oder Experte: für den DV-Profi, der bei zunehmender Spezialisierung nicht den Überblick verlieren will, ist dieses Buch zu ein nützliches und wertvollens Nachschlagewerk bei der täglichen Arbeit. Ausführliche und detailgenau Begriffserklärungen finden sich u. a. zu folgenden zentralen Themen der Datenkommunikation: - die klassischen Netze: Ethernet, Token Ring, FDD - Highspeed Networking: Fast Ethernet, 100 VGAnyLAN, Frame Relay, Segment Switching, Asynchronous Transfer Mode (ATM) - Internetworking, Virtual LANs - Online-Dienste - Internet, Intranet
- Editor
- Lipinski, K.
- Language
- d
-
Spanik, C.; Rügheimer, H,: DFÜ & BTX (1994)
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- Issue
- Erw. u. aktualisierte Neuaufl.
- Language
- d
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Welzel, P.: Datenfernübertragung : einführende Grundlagen zur Kommunikation offener Systeme (1993)
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Pordesch, U.; Roßnagel, A.: "Offene" Kommunikation : zur Verletzlichkeit des Internet und zur Notwendigkeit neuer Sicherheits- und Schutzstrategien in den virtuellen Welten (1997)
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- Date
- 29. 1.1997 18:49:05
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- d
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Bekavac, B.: Informations- und Kommunikationstechnologien (2004)
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- Grundlagen der praktischen Information und Dokumentation. 5., völlig neu gefaßte Ausgabe. 2 Bde. Hrsg. von R. Kuhlen, Th. Seeger u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried. Bd.1: Handbuch zur Einführung in die Informationswissenschaft und -praxis
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Höller, H.: Kommunikationssysteme : Normung und soziale Akzeptanz (1993)
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Sarnow, K.; Presno, O. de: Online-World : Globale Kommunikation (1994)
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Seiler, R.; Jung, K.: Dicke Bilder durch dünne Leitungen : Konzepte und Algorithmen der Bilddatenkompression (2000)
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Petry, W.; Werner, H.-J.: Anwendertraum: Kommunikations- und Retrieval-Software im Vergleich (1993)
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- Cogito. 9(1993) H.2, S.18-22
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SRW/U erleichtert verteilte Datenbankrecherchen (2005)
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- Content
- "Seit zwei Jahrzehnten nutzen vor allem Bibliotheksverbünde das Protokoll Z39.50, um ihren Benutzern im Internet die simultane Abfrage mehrerer Datenbanken zu ermöglichen. Jetzt gibt es einen Nachfolger dieses Protokolls, der eine einfachere Implementierung verspricht. Damit ist auch eine größere Verbreitung für die Suche in verteilten Datenbeständen anderer Institutionen, wie z.B. Archiven und Museen, wahrscheinlich. SRW/U (Search and Retrieve Web Service bzw. Search and Retrieve URL Service, www.loc.90v/z3950/agency/zing/srw) wurde von einer an der Library of Congress angesiedelten Initiative entwickelt und beruht auf etablierten Standards wie URI und XML. Die mit SRW und SRU möglichen Abfragen und Ergebnisse unterscheiden sich nur in der Art der Übertragung, verwenden aber beide dieselben Prozeduren. Davon gibt es nur drei: explain, scan und searchRetrieve. Die beiden Erstgenannten dienen dazu, allgemeine Informationen über den Datenanbieter bzw. die verfügbaren Indexe zubekommen. Das Herzstück ist die search-Retrieve-Anweisung. Damit werden Anfragen direkt an die Datenbank gesendet und die Parameter des Suchergebnisses definiert. Verwendet wird dafür die Retrievalsprache CQL (Common Query Language), die simple Freitextsuchen, aber auch mit Boolschen Operatoren verknüpfte Recherchen ermöglicht. Bei SRU werden die Suchbefehle mittels einfacher HTTP GET -Anfragen übermittelt, die Ergebnisse in XML zurückgeliefert. Zur Strukturierung der Daten dienen z.B. Dublin Core, MARC oder EAD. Welches Format von der jeweiligen Datenbank bereitgestellt wird, kann durch die explain-Anweisung ermittelt gebracht werden."
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- d
- Object
- SRW/U
