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U-1 | U-2

UA
unnumbered acknowledgement(¹øÈ£°¡ ÁöÁ¤µÇÁö ¾ÊÀº ±àÁ¤ È®ÀÎ)ÀÇ ¾à¾î.

UART
Universal Asynchronous Receiver/Transmitter(¹ü¿ë ºñµ¿±â ¼ö½Å/¼Û½Å ÀåÄ¡)ÀÇ ¾à¾î. ÄÄÇ»ÅÍÀÇ ÆÐ·²·¼ ¹ö½º¿¡ ºÎÂøµÈ ÁýÀû ȸ·Î. ½Ã¸®¾ó Åë½ÅÀ» À§ÇØ »ç¿ëµÈ´Ù. UART´Â ½Ã¸®¾ó ½ÅÈ£¿Í ÆÐ·²·¼ ½ÅÈ£ »çÀÌ¿¡¼­ º¯È¯À» Çϰí, Àü¼Û Ŭ·° 󸮸¦ Çϰí, ÄÄÇ»ÅÍ¿Í ÁÖ°í ¹Þ´Â µ¥ÀÌÅ͸¦ ¹öÆÛ ó¸®ÇÏ´Â ÀÏÀ» ÇÑ´Ù.

UB Net/One
Ungermann-Bass Net/OneÀÇ ¾à¾î. UB ³×Æ®¿öÅ©½º¿¡¼­ °³¹ßÇÑ ¶ó¿ìÆÃ ÇÁ·ÎÅäÄÝ. ÀÌ ÇÁ·ÎÅäÄÝÀº Çï·Î ÆÐŶ°ú °æ·Î Áö¿¬ ¸ÞÆ®¸¯À» »ç¿ëÇϸç, ¿£µå ³ëµåµéÀº XNS ÇÁ·ÎÅäÄÝÀ» »ç¿ëÇØ Åë½ÅÀ» ÇÑ´Ù. Net/One°¡ XNS ÇÁ·ÎÅäÄÝÀ» »ç¿ëÇÏ´Â ¹æ½Ä°ú ´Ù¸¥ XNS ³ëµåµéÀÇ ÀϹÝÀûÀÎ »ç¿ë ¹æ¹ý »çÀÌ¿¡´Â ¸¹Àº Â÷À̰¡ ÀÖ´Ù.

UBR
unspecified bit rate(ÁöÁ¤µÇÁö ¾ÊÀº ºñÆ® Àü¼Û ¼Óµµ)ÀÇ ¾à¾î. ATM Æ÷·³¿¡¼­ Á¤ÀÇÇÑ QoS Ŭ·¡½º. UBRÀ» ÀÌ¿ëÇϸé ÁöÁ¤µÈ ÃÖ´ë Å©±â±îÁö ÀÓÀÇÀÇ Å©±âÀÇ µ¥ÀÌÅ͸¦ ³×Æ®¿öÅ©¸¦ ÅëÇØ º¸³¾ ¼ö ÀÖÁö¸¸, ¼¿ ¼Õ½ÇÀ²°ú Áö¿¬ ½Ã°£ ¸é¿¡¼­´Â º¸ÀåµÈ °ÍÀÌ ¾ø´Ù. ºñ±³ Ç׸ñ: ABR, CBR, VBR.

UBR+
unspecified bit rate plus(ÁöÁ¤µÇÁö ¾ÊÀº ºñÆ® Àü¼Û ¼Óµµ Ç÷¯½º)ÀÇ ¾à¾î. EPD³ª TPD¿Í °°Àº Áö´ÉÇü ÆÐŶ Æó±â ¸ÞÄ¿´ÏÁòÀ» »ç¿ëÇÏ´Â ATM ½ºÀ§Ä¡µé¿¡ ÀÇÇØ º¸¿ÏµÇ´Â UBR ¼­ºñ½º. ÂüÁ¶ Ç׸ñ: EPD, TPD.

UCM
universal call model(¹ü¿ë È£Ãâ ¸ðµ¨)ÀÇ ¾à¾î.

UDLP
UniDirectional Link Protocol(´Ü¹æÇâ ¸µÅ© ÇÁ·ÎÅäÄÝ)ÀÇ ¾à¾î. À§¼ºÀ» ÅëÇØ µ¥ÀÌÅ͸¦ ¼ö½ÅÇϱâ À§ÇÑ Àú°¡Çü, ¼ö½Å Àü¿ë ¾ÈÅ׳ª°¡ »ç¿ëÇÏ´Â ÇÁ·ÎÅäÄÝ.

UDP
User Datagram Protocol(»ç¿ëÀÚ µ¥ÀÌÅͱ׷¥ ÇÁ·ÎÅäÄÝ)ÀÇ ¾à¾î. TCP/IP ÇÁ·ÎÅäÄÝ ½ºÅÿ¡¼­ ºñ¿¬°áÇü Æ®·£½ºÆ÷Æ® °èÃþ ÇÁ·ÎÅäÄÝ. UDP´Â ±àÁ¤ È®ÀÎ ½ÅÈ£³ª Àü´Þ º¸ÀåÀÌ ¾øÀÌ µ¥ÀÌÅͱ׷¥À» ±³È¯ÇÏ´Â ´Ü¼øÇÑ ÇÁ·ÎÅäÄÝÀ̸ç, ¿À·ù 󸮳ª ÀçÀü¼ÛÀº ´Ù¸¥ ÇÁ·ÎÅäÄÝÀÌ Ã³¸®Çؾ߸¸ ÇÑ´Ù. UDP´Â RFC 768¿¡¼­ Á¤ÀǵƴÙ.

U-frame(U-ÇÁ·¹ÀÓ)
Unnumbered frame(¹øÈ£°¡ ÁöÁ¤µÇÁö ¾ÊÀº ÇÁ·¹ÀÓ)ÀÇ ¾à¾î. ¼¼ °¡Áö SDLC ÇÁ·¹ÀÓ Æ÷¸Ë ÁßÀÇ Çϳª. ÂüÁ¶ Ç׸ñ: I-frame(I-ÇÁ·¹ÀÓ), S-frame(S-ÇÁ·¹ÀÓ).

UI
unnumbered information(¹øÈ£°¡ ÁöÁ¤µÇÁö ¾ÊÀº Á¤º¸)ÀÇ ¾à¾î.

UIO
Universal I/O serial port(¹ü¿ë I/O ½Ã¸®¾ó Æ÷Æ®) (½Ã½ºÄÚ ¶ó¿ìÅÍ).

UKERNA
UK Education and Research Networking Association(¿µ±¹ ±³À° ¹× ¿¬±¸ Á¶»ç¿ë ³×Æ®¿öÅ· Çùȸ)ÀÇ ¾à¾î.

UL
Underwriters Laboratories(º¸Áõ ¿¬±¸¼Ò)ÀÇ ¾à¾î. Á¦Ç° ¾ÈÀüµµ¸¦ Å×½ºÆ®ÇÏ´Â ¹Ì±¹ ³»ÀÇ µ¶¸³ÀûÀÎ ±â°ü.

U-law
ºÏ¹Ì¿¡¼­ ÀϹÝÀûÀ¸·Î »ç¿ëµÇ´Â ÄÄÆÒµù ±â¹ý. U-law´Â ITU-T G.711¿¡¼­ 64Kbps CODEC·Î Ç¥ÁØÈ­µÅ ÀÖ´Ù.

ULP
upper-layer protocol(»óÀ§ ·¹À̾î ÇÁ·ÎÅäÄÝ)ÀÇ ¾à¾î. OSI ÂüÁ¶ ¸ðµ¨¿¡¼­ ´Ù¸¥ °èÃþ¾îµéº¸´Ù ³ôÀº °èÃþ¿¡¼­ »ç¿ëµÇ´Â ÇÁ·ÎÅäÄÝ. ULP´Â ¶§¶§·Î ÇÁ·ÎÅäÄÝ ½ºÅÿ¡¼­ (ƯÁ¤ÇÑ ÇÁ·ÎÅäÄÝÀ» ±âÁØÀ¸·Î) ±× ´ÙÀ½ ³ôÀº ÇÁ·ÎÅäÄÝÀ» °¡¸®Å°´Âµ¥ »ç¿ëµÈ´Ù.

unbalanced configuration(ºñÆòÇü ±¸¼º)
ÇÁ¶óÀ̸Ӹ® ½ºÅ×À̼ÇÀÌ ÇϳªÀÌ°í ¼¼ÄÁ´õ¸® ½ºÅ×À̼ÇÀÌ ¿©·¯ °³ÀÎ HDLC ±¸¼º.

Underwriters Laboratories(º¸Áõ ¿¬±¸¼Ò)
ULÀ» ÂüÁ¶ÇÑ´Ù.

Ungermann-Bass Net/One
UB Net/OneÀ» ÂüÁ¶ÇÑ´Ù.

UNI
User-Network Interface(»ç¿ëÀÚ-³×Æ®¿öÅ© ÀÎÅÍÆäÀ̽º)ÀÇ ¾à¾î. »ç¼³ ³×Æ®¿öÅ©¿¡ ÀÖ´Â ATM Àåºñ(¶ó¿ìÅͳª ATM ½ºÀ§Ä¡)¿Í °ø°ø Åë½Å »ç¾÷ÀÚ ³×Æ®¿öÅ© ³»¿¡ ÀÖ´Â ATM ½ºÀ§Ä¡ »çÀÌÀÇ ÀÎÅÍÆäÀ̽º¸¦ À§ÇÑ È£È¯¼º Ç¥ÁØÀ» Á¤ÀÇÇÏ´Â ATM Æ÷·³ ±Ô°Ý. ÇÁ·¹ÀÓ ¸±·¹ÀÌ ³×Æ®¿öÅ©¿¡¼­ ºñ½ÁÇÑ ¿¬°áÀ» ¼³¸íÇÒ ¶§¿¡µµ »ç¿ëµÈ´Ù. ÂüÁ¶ Ç׸ñ: NNI, Q.920/Q.921, SNI (Subscriber Network Interface(°¡ÀÔÀÚ ³×Æ®¿öÅ© ÀÎÅÍÆäÀ̽º)).

unicast(À¯´Ïij½ºÆ®)
´ÜÀÏ ³×Æ®¿öÅ© ¼ö½Å ÀåÄ¡·Î º¸³»Áø ¸Þ½ÃÁö. ºñ±³ Ç׸ñ: broadcast(ºê·Îµåij½ºÆ®), multicast(¸ÖƼij½ºÆ®).

unicast address(À¯´Ïij½ºÆ® ÁÖ¼Ò)
´ÜÀÏ ³×Æ®¿öÅ© ÀåÄ¡¸¦ ÁöÁ¤ÇÏ´Â ÁÖ¼Ò. ºñ±³ Ç׸ñ: broadcast address(ºê·Îµåij½ºÆ® ÁÖ¼Ò), multicast address(¸ÖƼij½ºÆ® ÁÖ¼Ò). ÂüÁ¶ Ç׸ñ: unicast(À¯´Ïij½ºÆ®).

UniDirectional Link Protocol(´Ü¹æÇâ ¸µÅ© ÇÁ·ÎÅäÄÝ)
UCMÀ» ÂüÁ¶ÇÑ´Ù.

uninsured traffic(ºñº¸Àå Æ®·¡ÇÈ)
ATM VCCÀÇ Ãʰú ¼Óµµ(º¸Àå ¼Óµµ¿Í ÃÖ´ë ¼ÓµµÀÇ Â÷ÀÌ)¿¡ ¼ÓÇÏ´Â Æ®·¡ÇÈ. ÀÌ Æ®·¡ÇÈÀº Åë½Å ÆøÁÖ »óŰ¡ ¹ß»ýÇÏ¸é ³×Æ®¿öÅ©¿¡ ÀÇÇØ µå·Ó 󸮵ȴÙ. ÂüÁ¶ Ç׸ñ: CLP, insured rate(º¸Àå ¼Óµµ), maximum rate(ÃÖ´ë ¼Óµµ).

unipolar(À¯´ÏÆú¶ó)
¹®ÀÚÀûÀÎ Àǹ̴ ´ÜÀÏ ±Ø¼ºÀ̸ç, µðÁöÅÐ Åë½Å Àåºñ¿¡¼­ ³»ºÎ ½ÅÈ£ÀÇ ±âº»ÀûÀÎ Àü±âÀû Ư¼ºÀÌ´Ù. ºñ±³ Ç׸ñ: bipolar(¹ÙÀÌÆú¶ó).

unity gain(´ÜÀ§ À̵æ)
±¤´ë¿ª ³×Æ®¿öÅ©¿¡¼­ ÁõÆø±â¸¦ Åë°úÇÒ ¶§ÀÇ ½ÅÈ£ ¼Õ½Ç°ú ½ÅÈ£ À̵æÀÇ Â÷ÀÌ.

Universal Asynchronous Receiver/Transmitter(¹ü¿ë ºñµ¿±â ¼ö½Å/¼Û½Å ÀåÄ¡)
UCMÀ» ÂüÁ¶ÇÑ´Ù.

Universal Resource Locator(°ø¿ë ¸®¼Ò½º ·ÎÄÉÀÌÅÍ)
URLÀ» ÂüÁ¶ÇÑ´Ù.

UNIX(À¯´Ð½º)
1969³â Bell ¿¬±¸¼Ò¿¡¼­ °³¹ßÇÑ ¿î¿µÃ¼Á¦. À¯´Ð½º´Â óÀ½ µîÀåÇÑ ÀÌÈÄ ¸î Â÷·ÊÀÇ º¯½ÅÀ» Çß´Ù. ±×·± º¯½ÅÁß¿¡´Â ͏®Æ÷´Ï¾Æ ÁÖ¸³ ¹öŬ¸® ´ëÇп¡¼­ °³¹ßÇÑ UNIX 4.3 BSD (Berkeley Standard Distribution(¹öŬ¸® Ç¥ÁØ ¹èÆ÷ÆÇ))°ú AT&T¿¡¼­ °³¹ßÇÑ UNIX System V¡¤Release 4.0ÀÌ ÀÖ´Ù.

UNIX-to-UNIX Copy Program(À¯´Ð½º-À¯´Ð½º º¹»ç ÇÁ·Î±×·¥)
UUCP¸¦ ÂüÁ¶ÇÑ´Ù.

Unnumbered frame(¹øÈ£°¡ ÁöÁ¤µÇÁö ¾ÊÀº ÇÁ·¹ÀÓ)
¸µÅ© ½ÃÀÛ°ú Á¾·á¸¦ Æ÷ÇÔÇØ ´Ù¾çÇÑ Á¦¾î¿Í °ü¸® ¸ñÀûÀ» À§ÇØ ±×¸®°í ¸ðµå ÁöÁ¤À» À§ÇØ »ç¿ëµÇ´Â HDLC ÇÁ·¹ÀÓ.

unshielded twisted-pair(ºñ-Àý¿¬ Æ®À§½ºÆ¼µå Æä¾î ÄÉÀ̺í)
UTP¸¦ ÂüÁ¶ÇÑ´Ù.

unspecified bit rate(ÁöÁ¤µÇÁö ¾ÊÀº ºñÆ® Àü¼Û ¼Óµµ)
UBRÀ» ÂüÁ¶ÇÑ´Ù.

UPC
usage parameter control(»ç¿ë ÆÄ¶ó¹ÌÅÍ Á¦¾î)ÀÇ ¾à¾î. traffic policing(Æ®·¡ÇÈ Æú¸®½Ã ó¸®)¸¦ ÂüÁ¶ÇÑ´Ù.

upper-layer protocol(»óÀ§ ·¹À̾î ÇÁ·ÎÅäÄÝ)
U-law¸¦ ÂüÁ¶ÇÑ´Ù.

upstream(¾÷½ºÆ®¸²)
°¡ÀÔÀÚ¿¡°Ô¼­ ÀüÆÄ Áß°è¼Ò·Î µ¥ÀÌÅ͸¦ º¸³»´Âµ¥ »ç¿ëµÇ´Â ÀÏ·ÃÀÇ Á֯ļö.

urban legend(µµ½ÃÀÇ Àü¼³)
óÀ½¿¡´Â ÇÑ ÅçÀÇ Áø½Ç¿¡¼­ºÎÅÍ ½ÃÀÛÇß°ÚÁö¸¸ ÀÚ²Ù µÇÇ®ÀÌÇØ¼­ ÀÔ¿¡ ¿À¸£³»¸®´Ù °á±¹Àº ÀÎÅͳݿ¡ ¿Ã¶ó¿À°Ô µÈ À̾߱â. ÁÖ±âÀûÀ¸·Î µîÀåÇÏ´Â ±×·± Àü¼³µé Áß¿¡´Â "The Infamous Modem Tax(¾Ç¶öÇÑ ¸ðµ© ºÎ°ú ¿ä¼Ò)," "Craig Shergold(Å©·¡ÀÍ ¼­°ñµå °ÔÀÓÀ¸·Î ÃÖÁ¾¾ç °É¸®´Ù)/Brain Tumor/Get Well Cards," "The $250 cookie Recipe(250´Þ·¯Â¥¸® ÄíŰ ¿ä¸®¹ý)" µîÀÌ ÀÖ´Ù. µµ½ÃÀÇ Àü¼³Àº °³³ä»ó ¿À·£ ±â°£ ±Ëµµ¿¡ µÕµÕ ¶°´Ù´Ï´Â ¿ìÁÖ ¾²·¹±â¿Í ºñ½ÁÇÏ´Ù.

URL
Universal Resource Locator(°ø¿ë ¸®¼Ò½º ·ÎÄÉÀÌÅÍ). ºê¶ó¿ìÀú¸¦ »ç¿ëÇØ ÇÏÀÌÆÛÅØ½ºÆ® ¹®¼­³ª ±× ¿ÜÀÇ ´Ù¸¥ ¼­ºñ½º¸¦ ÀÌ¿ëÇϴ ǥÁØÈ­µÈ ÁÖ¼Ò ÁöÁ¤ ¹æ½Ä. ÂüÁ¶ Ç׸ñ: browser(ºê¶ó¿ìÀú).

usage parameter control(»ç¿ë ÆÄ¶ó¹ÌÅÍ Á¦¾î)
traffic policing(Æ®·¡ÇÈ Æú¸®½Ã ó¸®)¸¦ ÂüÁ¶ÇÑ´Ù. USENET 1979³â ½ÃÀÛÀÌ µÈ °¡Àå ¿À·¡ µÇ°í °¡Àå Å« °øµ¿ÀÇ ³×Æ®¿öÅ© Áß Çϳª. 10,000´ë ÀÌ»óÀÇ È£½ºÆ®¿Í 25¸¸¸í ÀÌ»óÀÇ »ç¿ëÀÚ°¡ ÀÖ´Ù. ÁÖ¿ä ¼­ºñ½º´Â news¶ó°í ºÒ¸®´Â ºÐ»êÇü ÄÁÆÛ·±½Ì ¼­ºñ½ºÀÌ´Ù.

User Datagram Protocol(»ç¿ëÀÚ µ¥ÀÌÅͱ׷¥ ÇÁ·ÎÅäÄÝ)
UDP¸¦ ÂüÁ¶ÇÑ´Ù.

User-Network Interface(»ç¿ëÀÚ-³×Æ®¿öÅ© ÀÎÅÍÆäÀ̽º)
UNI¸¦ ÂüÁ¶ÇÑ´Ù.

UTC
Coordinated Universal Time(Á¶Á¤µÈ °ø¿ë ½Ã°£)ÀÇ ¾à¾î. °æµµ Á¦·Î¿¡ Á¸ÀçÇÏ´Â ½Ã°£ ¿µ¿ª. ÀÌÀü¿¡´Â Greenwich Mean Time (GMT) ¶Ç´Â Zulu ½Ã°£À̶ó°í Çß´Ù.

UTP
unshielded twisted-pair(ºñ-Àý¿¬ Æ®À§½ºÆ¼µå Æä¾î ÄÉÀ̺í)ÀÇ ¾à¾î. ´Ù¾çÇÑ ³×Æ®¿öÅ©¿¡¼­ »ç¿ëµÇ´Â 4½Ö ¿ÍÀÌ¾î ¸Åü. UTP¿¡´Â µ¿Ãà ÄÉÀ̺íÇü ¿¬°á¿¡¼­ ÇÊ¿äÇÑ ¿¬°á ºÎÀ§ »çÀÌÀÇ °íÁ¤ ½ºÆäÀÌ½Ì ÀåÄ¡°¡ ÇÊ¿äÇÏÁö ¾Ê´Ù. ÈçÈ÷ »ç¿ëÇÏ´Â UTP ÄÉÀÌºí ¿¬°á ¹æ½ÄÀº ´Ù¼¸ °¡Áö°¡ ÀÖ´Ù: Ä«Å×°í¸® 1 cabling(Ä«Å×°í¸® 1 ÄÉÀÌºí¸µ), Ä«Å×°í¸® 2 cabling(Ä«Å×°í¸® 2 ÄÉÀÌºí¸µ), Ä«Å×°í¸® 3 cabling(Ä«Å×°í¸® 3 ÄÉÀÌºí¸µ), Ä«Å×°í¸® 4 cabling(Ä«Å×°í¸® 4 ÄÉÀÌºí¸µ), Ä«Å×°í¸® 5 cabling(Ä«Å×°í¸® 5 ÄÉÀÌºí¸µ). ºñ±³ Ç׸ñ: STP. ÂüÁ¶ Ç׸ñ: EIA/TIA-586, twisted pair(Æ®À§½ºÆ¼µå Æä¾î ÄÉÀ̺í).

UTS
P1024C µ¥ÀÌÅÍ ¸µÅ© °èÃþ ÇÁ·ÎÅäÄÝ.

UUCP
UNIX-to-UNIX Copy Program(À¯´Ð½º-À¯´Ð½º º¹»ç ÇÁ·Î±×·¥)ÀÇ ¾à¾î. À¯´Ð½º ½Ã½ºÅÛµé »çÀÌÀÇ Æ÷ÀÎÆ®-Åõ-Æ÷ÀÎÆ® Åë½Å¿¡¼­ »ç¿ëÇÏ´Â ÇÁ·ÎÅäÄÝ ½ºÅÃ.

uuencode(À¯À¯ÀÎÄÚµå)
UNIX-to-UNIX encoding(À¯´Ð½º°£ ¿£ÄÚµù)ÀÇ ¾à¾î. ¹ÙÀ̳ʸ® ÆÄÀÏÀ» ÀüÀÚ¿ìÆíÀ» ÀÌ¿ëÇØ ÀÎÅÍ³Ý »ó¿¡¼­ º¸³¾ ¼ö ÀÖµµ·Ï ASCII·Î º¯È¯ÇÏ´Â ¹æ½Ä. ÀÌ À̸§Àº À¯´Ð½º ¿î¿µÃ¼Á¦ÀÇ uuencode ¸í·ÉÀ» »ç¿ëÇϱ⠶§¹®¿¡ ºÙ¿©Áø °ÍÀÌ´Ù. ÂüÁ¶ Ç׸ñ: uudecode.

uudecode(À¯À¯´ÏÄÚµå)
UNIX-to-UNIX decodeÀÇ ¾à¾î. uuencode¸¦ »ç¿ëÇØ ¿£ÄÚµùµÈ ASCII ÆÄÀÏÀ» µðÄÚµùÇÏ´Â ¹æ½Ä. ÂüÁ¶ Ç׸ñ: uuencode.

UVM
Universal Voice Module(¹ü¿ë À½¼º ¸ðµâ)ÀÇ ¾à¾î.

UVM-C
Universal Voice Module-Channelized(¹ü¿ë À½¼º ¸ðµâ-ä³ÎÇü)ÀÇ ¾à¾î

UVM-U
Universal Voice Module-Unchannelized(¹ü¿ë À½¼º ¸ðµâ-ºñä³ÎÇü)ÀÇ ¾à¾î.

U-1 | U-2

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