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Telecommunications and Networks I. Chapter overview foundation Concepts: Foundations of Information in Business
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| bet | 9/65 | | Sana | 01.04.2017 | | Hajmi | 348.93 Kb. | | #2764 |
Technology Trends:
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Open systems with unrestricted connectivity, using Internet networking technologies as their technology platform, are becoming the primary telecommunications technology drivers.
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Increased industry and technical moves towards building client/server networks based on open system architecture. Open systems are information systems that use common standards for hardware, software, applications, and networking. Any open systems provide greater connectivity, that is, the ability of network computers and other devices to easily access and communicate with each other and share information. Open systems architecture also provides a high degree of network interoperability. That is, open systems enable the many different applications of end users to be accomplished using the different varieties of computer systems, software packages, and databases provided by a variety of interconnected networks.
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Change from analog to digital network technologies. Local and global telecommunications networks are rapidly converting to digital transmission technologies that transmit information in the form of discrete pulses, rather than waves. Digital transmission offers:
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Higher transmission speeds (transmits with pulses)
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Movement of greater amounts of information
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Greater economy
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Much lower error rates than analog systems
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Telecommunications networks to carry multiple types of communications (data, voice, and video) on the same circuits. (Integrated Services Digital Network (ISDN) technology)
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Change in communications media. Many telecommunications networks are changing from copper wire-based media and land-based microwave relay systems to fiber optic lines and communications satellite transmissions. Fiber optic transmission, which uses pulses of a laser-generated light, offer significant advantages in terms of:
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Reduced size and installation effort
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Greater communication capacity
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Faster transmission speeds
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Freedom from electrical interference
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