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What is Bar Code

Chapter 102
Encyclopedia of Information Communication Technology
Automatic identification technology that generally employs a series of black vertical bars separated by vertical white spaces as a method of encoding numeric and alphanumeric data. Commonly used forms of barcodes are placed on consumer goods to identify universal product codes (UPCs). Newer technologies of barcodes include 2D (two dimensional) which allow more information to be encoded using a smaller area. There must be a line of sight between barcodes and barcode scanners in order for information to be read.
Published in Chapter:
The Transport-Level Requirements of the Internet-Based Streaming
Dávid Tegze (Budapest University of Technology and Economics, Hungary) and Gábor Hosszú (Budapest University of Technology and Economics, Hungary)
Copyright: © 2009 |Pages: 7
DOI: 10.4018/978-1-59904-845-1.ch102
Abstract
This article presents the comparison of different transport level congestion control schemes, including variants of the TCP (Postel, 1981). The protocol mechanisms, implemented in various protocols are hard to investigate in a uniform manner (Hosszú, 2005); therefore, the simulator SimCast (Simulator for multicast) is developed for traffic analysis of the unicast (one-to-one communication) and multicast (one-to-many communication) streams. In this article, the TCP and other transport protocol mechanisms will be compared using the SimCast simulator (Orosz & Tegze, 2001). The simulated results are presented through examples.
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Chapter 52
Case Studies in Mobile Business
A machine-readable representation of information (usually dark ink on a light background to create high and low reflectance which is converted to 1s and 0s).
Published in Chapter: Case Studies in Mobile Business; From: Handbook of Research in Mobile Business, Second Edition: Technical, Methodological and Social Perspectives
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Chapter 161
Privacy Risk in E-Commerce
An automatic identification technology that encodes information into an array of adjacent varying width parallel rectangular bars and spaces, which are scanned by a laser.
Published in Chapter: Privacy Risk in E-Commerce; From: Encyclopedia of Multimedia Technology and Networking, Second Edition
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