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Hacker on the net
| Telecommunications Glossary |
Unlike among the general public, this is not a bad person; it is simply somebody who enjoys stretching hardware and software to their limits, seeing just what they can get their computers to do. what many people call hackers, net.denizens refer to as crackers.
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Stretching, английский
Растяжение; растягивание, вытягивание; натяжение; преднапря- жение
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Half-duplex, английский
- A communications channel over which both transmission and reception are possible but only in one direction at one time; e.g., a two-wire circuit.
- In data transmission, a system in which transmitters and receivers cannot simultaneously send and receive signals.
- Two-way electronic communication that takes place in only one direction at a time.
Gui - graphical user interface, английский
The underlying principle of client/server computing is empowerment of the end-user through the delivery of information services to the desktop. services are delivered across the network to a graphical user interface where data is massaged, merged, and maximized. guis are designed to juggle multiple applications in windows, through icon-driven commands that standardize application usage and optimize the underlying flow of information across the network. glossary/38 h h.261 ccitt standard for video compression. it is used to transmit video at rates between 64 kilobits per second and t1 speeds. it is also referred to as px64. px64 supports intra-coded frames (jpeg-like compression techniques) or p-frames (predictive frames, typical of temporal compression and decompression techniques like mpeg). px64 is an evolving multi-dimensional video telephone conferencing standard that defines compression of audio and motion video images at resolutions of 288 lines by 360 pixels or 144 lines by 180 pixels. complying with the ccitt`s recommendation h.261 px64 incorporates multiplexing, demultiplexing and framing of multimedia data, as well as transmission protocol and bandwidth congruence, and call setup and teardown. px64 supports intra-coded frames (jpeg-like compression techniques) or pframes (predictive frames, typical temporal compression and decompression techniques like mpeg). h.323 series standard the h.323 standard provides a foundation for audio, video, and data communications across ip-based networks, including the internet. by complying to h.323, multimedia products and applications from multiple vendors can interoperate, allowing users to communicate without concern for compatibility. h.323 is the keystone for lan-based products for consumer, business, entertainment, and professional applications. these networks dominate corporate desktops and include packet-switched tcp/ip and ipx over ethernet, fast ethernet and token ring network technologies. . the standard is broad in scope and includes both stand-alone devices and embedded personal computer technology as well as point-to-point and multipoint conferences. h.323 is part of a larger series of communications standards that enable videoconferencing across a range of networks. known as h.32x, this series includes h.320 and h.324, which address isdn and pstn communications, respectively. h.323 applications include desktop videoconferencing, internet telephony and video telephony, collaborative computing, network gaming, business conference calling, distance learning, support and help desk applications and interactive shopping.
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