Internet Terminology


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Ymodem
an error-correcting protocol for modem that uses larger data blocks for greater efficiency. Modems that agree on using the Ymodem protocol send data in 1024-byte blocks. Blocks received successfully are not acknowledged. Blocks with errors are acknowledged (with a NAK or negative acknowledgement) and the blocks are retransmitted. Ymodem is similar to Xmodem-1K except that a batch mode is provided. In batch mode, a number of files can be sent with a single command. Ymodem uses cyclic redundancy checking as the method of error detection.

yagi antenna
is an antenna that radiates in only one direction. Yagi antennas, also known as panel or patch antennas, are most commonly used in point-to-point communications.

Yahoo Search Engine
a directory of World Wide Web sites organized in a hierarchy of topic categories.

y-cable
is a "Y" shaped power cable that splits an existing power cable into two connections, allowing for additional connections of internal devices such as a CD-ROM, DVD-ROM, hard drive, or other IDE devices. A Y-Cable can also be used as an extension of the existing power cable. A Y-Cable is also called a Power Y cable.

y-coordinate
x, y coordinates are respectively the horizontal and vertical addresses of any pixel or addressable point on a computer display screen. The x coordinate is a given number of pixels along the horizontal axis of a display starting from the pixel (pixel 0) on the extreme left of the screen. The y coordinate is a given number of pixels along the vertical axis of a display starting from the pixel (pixel 0) at the top of the screen. Together, the x and y coordinates locate any specific pixel location on the screen.


Yorick
is an interpreted programming language used for scientific applications such as simulations, calculations, post-processing, interactive scientific graphics, or translating large files of numbers. Yorick is written in ANSI C and runs on most operating systems. It has a compact syntax, similar to C, but with array operators. It's easily expandable through dynamic linking of C libraries.



YouTube
is a popular free video-sharing website that lets registered users upload and share video clips online at the YouTube.com website. You are not required to register in order to view the videos. This video-sharing site was acquired by Google Inc. in October 2006.

YUV
is a color encoding system used for analog television, such as NTSC and PAL. The YUV color model represents the human perception of color more closely than the standard RGB model used in computer graphics hardware. In YUV, Y is the luminance (brightness) component while U and V are the chrominance (color) components.

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O         P         Q         R         S         T         U        

V         W         X         Y         Z


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