1. Cèšèªãã¬ãŒã ã¯ãŒã¯ã®æŠèŠ
ããã°ã©ãã³ã°ã®äžçã«ã¯å€ãã®èšèªãšããŒã«ãååšããŸããããã®äžã§ãããã¬ãŒã ã¯ãŒã¯ããšããèšèã¯ç¹ã«éèŠãªäœçœ®ãå ããŠããŸãããã®ã»ã¯ã·ã§ã³ã§ã¯ããã¬ãŒã ã¯ãŒã¯ã®åºæ¬çãªæŠå¿µãšãCèšèªãšã®é¢ä¿ã«ã€ããŠè§£èª¬ããŸãã
1.1. ãã¬ãŒã ã¯ãŒã¯ãšã¯
ãã¬ãŒã ã¯ãŒã¯ã¯ããœãããŠã§ã¢ã®èšèšãéçºãå¹ççã«é²ããããã®ãæ çµã¿ãããåºç€ããšãªãããŒã«ã®ããšãæããŸããå ·äœçã«ã¯ããããããçšæãããã©ã€ãã©ãªãã¢ãžã¥ãŒã«ãçµã¿åãããŠãã¢ããªã±ãŒã·ã§ã³ã®åºæ¬çãªæ§é ã圢æããããšãã§ããŸããããã«ãããéçºè ã¯ç¹éãªã³ãŒãã®èšè¿°ãçç¥ããäž»èŠãªæ©èœã®å®è£ ã«éäžããããšãã§ããã®ã§ãã
äŸãã°ããŠã§ãã¢ããªã±ãŒã·ã§ã³ã®éçºã«ãããŠã¯ããŠãŒã¶ãŒèªèšŒãããŒã¿ããŒã¹ã®æ¥ç¶ãªã©ãå ±éã®æ©èœãå€ãååšããŸãããã¬ãŒã ã¯ãŒã¯ã䜿çšããããšã§ããããã®å ±éæ©èœãå¹ççã«å®è£ ããããšãã§ããéçºæéã®ççž®ãå質ã®åäžãæåŸ ã§ããŸãã
1.2. Cèšèªãšãã¬ãŒã ã¯ãŒã¯ã®é¢ä¿
Cèšèªã¯ã1970幎代åé ã«AT&Tãã«ç 究æã§éçºãããããã°ã©ãã³ã°èšèªã§ããããã®åŸã®å€ãã®èšèªã®åºç€ãšãªã£ãŠããŸãããã®ãããCèšèªèªäœã¯ãã¬ãŒã ã¯ãŒã¯ãšã¯ç°ãªãååšã§ãããCèšèªãããŒã¹ãšããå€ãã®ãã¬ãŒã ã¯ãŒã¯ãååšããŠããŸãã
ãããã®ãã¬ãŒã ã¯ãŒã¯ã¯ãCèšèªã®æã€é«ãããã©ãŒãã³ã¹ãæ±çšæ§ã掻ããã€ã€ãéçºã®å¹çåãå質åäžãç®æããŠèšèšãããŠããŸããå ·äœçã«ã¯ãçµã¿èŸŒã¿ã·ã¹ãã ããªã¢ã«ã¿ã€ã ã·ã¹ãã ã®éçºã«ãããŠãCèšèªããŒã¹ã®ãã¬ãŒã ã¯ãŒã¯ã掻çšãããããšãå€ãã§ãã
ãŸããCèšèªã®ãã¬ãŒã ã¯ãŒã¯ã䜿çšããããšã§ããã©ãããã©ãŒã éã®äºææ§ã®ç¢ºä¿ããåå©çšå¯èœãªã³ãŒãã®äœæãªã©ãå€ãã®ã¡ãªããã享åã§ããŸãã
2. Cèšèªãã¬ãŒã ã¯ãŒã¯ã®å©ç¹
ããã°ã©ãã³ã°ã®äžçã§ã¯ãå¹ççãªéçºãé«å質ãªã³ãŒãã®å®çŸãæ±ããããŠããŸããCèšèªãã¬ãŒã ã¯ãŒã¯ã¯ããããã®èŠæ±ã«å¿ããããã®åªããããŒã«ãšããŠæ³šç®ãããŠããŸãããã®ã»ã¯ã·ã§ã³ã§ã¯ãCèšèªãã¬ãŒã ã¯ãŒã¯ãæã€äž»èŠãªå©ç¹ã«ã€ããŠè©³ãã解説ããŸãã
2.1. éçºé床ã®åäž
ãã¬ãŒã ã¯ãŒã¯ã䜿çšããæ倧ã®å©ç¹ã®äžã€ã¯ãéçºé床ã®åäžã§ãããã¬ãŒã ã¯ãŒã¯ã«ã¯ããããããèšèšãããã¢ãžã¥ãŒã«ãã©ã€ãã©ãªãå«ãŸããŠããããããå©çšããããšã§ãç¹éãªã³ãŒãã®èšè¿°ãçç¥ããããšãã§ããŸããããã«ãããéçºè ã¯äž»èŠãªæ©èœã®å®è£ ã«éäžããããšãã§ããå šäœã®éçºæéãå€§å¹ ã«ççž®ããããšãå¯èœãšãªããŸãã
2.2. ã³ãŒãã®å質åäž
ãã¬ãŒã ã¯ãŒã¯ã䜿çšããããšã§ãã³ãŒãã®å質ãåäžããŸãããã¬ãŒã ã¯ãŒã¯ã«ã¯ãå€ãã®ãã¹ããå®è·µãçµãŠç¢ºç«ããããã¹ããã©ã¯ãã£ã¹ãåãå ¥ããããŠããŸããããã«ããããã°ã®å°ãªããå®å®ããã³ãŒããæžãããšãã§ããã®ã§ãããŸãããã¬ãŒã ã¯ãŒã¯ã®æã€äžè²«æ§ã®ããæ§é ã¯ãã³ãŒãã®å¯èªæ§ãä¿å®æ§ãé«ããŸãã
2.3. å¹ççãªããã°ã©ãã³ã°ã®ãµããŒã
ãã¬ãŒã ã¯ãŒã¯ã¯ãå¹ççãªããã°ã©ãã³ã°ããµããŒãããå€ãã®ããŒã«ãæ©èœãæäŸããŠããŸããäŸãã°ãããŒã¿ããŒã¹ã®æ¥ç¶ãã¯ãšãªã®å®è¡ããŠãŒã¶ãŒèªèšŒãªã©ã®å ±éã®æ©èœã¯ããã¬ãŒã ã¯ãŒã¯ã䜿çšããããšã§ç°¡åã«å®è£ ããããšãã§ããŸããããã«ãããéçºè ã¯ç ©éãªèšå®ãã³ãŒãã®èšè¿°ãã解æŸãããããã¯ãªãšã€ãã£ããªéšåã«éäžããããšãã§ããã®ã§ãã
3. Cèšèªãã¬ãŒã ã¯ãŒã¯ã®åºç€
ããã°ã©ãã³ã°ã®åŠç¿ãé²ããäžã§ããã¬ãŒã ã¯ãŒã¯ã®åºç€ãç解ããããšã¯éåžžã«éèŠã§ãããã®ã»ã¯ã·ã§ã³ã§ã¯ãCèšèªãã¬ãŒã ã¯ãŒã¯ã®åºæ¬çãªæ§é ãåäœåçãåå¿è ãç¥ã£ãŠããã¹ãäž»èŠãªæ©èœããããŠãã¬ãŒã ã¯ãŒã¯ãå©çšããããã°ã©ã äœæã®æé ã«ã€ããŠè©³ãã解説ããŸãã
3.1. åºæ¬çãªæ§é ãšåäœåç
ãã¬ãŒã ã¯ãŒã¯ã¯ãäžé£ã®ã©ã€ãã©ãªãã¢ãžã¥ãŒã«ããæãçµç¹çãªæ§é ãæã£ãŠããŸãããããã®ã³ã³ããŒãã³ãã¯ãç¹å®ã®ã¿ã¹ã¯ãæ©èœãå¹ççã«å®è¡ããããã«èšèšãããŠããŸããåäœåçãšããŠã¯ããã¬ãŒã ã¯ãŒã¯å ã®åã³ã³ããŒãã³ããé£æºããŠãã¢ããªã±ãŒã·ã§ã³ã®åºæ¬çãªåäœããµããŒãããŸããããã«ãããéçºè ã¯ç¹éãªèšå®ãåæåã®æéãçç¥ããå ·äœçãªæ©èœã®å®è£ ã«å°å¿µããããšãã§ããŸãã
3.2. åå¿è ãç¥ã£ãŠããã¹ãäž»èŠãªæ©èœ
Cèšèªãã¬ãŒã ã¯ãŒã¯ã«ã¯ãåå¿è ãç¥ã£ãŠããã¹ãããã€ãã®äž»èŠãªæ©èœããããŸããäŸãã°ãããŒã¿ããŒã¹ã®æ¥ç¶ãã¯ãšãªã®å®è¡ããŠãŒã¶ãŒèªèšŒããšã©ãŒãã³ããªã³ã°ãªã©ã®åºæ¬çãªæ©èœãæããããŸãããããã®æ©èœãç解ããé©åã«å©çšããããšã§ãå¹ççãªã¢ããªã±ãŒã·ã§ã³éçºãå¯èœãšãªããŸãã
3.3. ãã¬ãŒã ã¯ãŒã¯ãå©çšããããã°ã©ã äœæã®æé
ãã¬ãŒã ã¯ãŒã¯ãå©çšããããã°ã©ã ã®äœæã¯ã以äžã®æé ã§è¡ãããŸãããŸããç®çã«åããããã¬ãŒã ã¯ãŒã¯ã®éžæãè¡ããŸãã次ã«ããã¬ãŒã ã¯ãŒã¯ã®åæèšå®ãç°å¢æ§ç¯ãè¡ããå¿ èŠãªã©ã€ãã©ãªãã¢ãžã¥ãŒã«ãã€ã³ã¹ããŒã«ããŸãããã®åŸãã¢ããªã±ãŒã·ã§ã³ã®äž»èŠãªæ©èœãããžãã¯ãå®è£ ãããã¹ããè¡ããŸããæåŸã«ãå®æããã¢ããªã±ãŒã·ã§ã³ããããã€ã¡ã³ãããããšã§ããŠãŒã¶ãŒã«æäŸããŸãã
4. Cèšèªã®æŽå²ãšç¹åŸŽ
ããã°ã©ãã³ã°èšèªã®äžã§ããCèšèªã¯ãã®æŽå²ãšç¹åŸŽããå€ãã®éçºè ã«æãããŠããŸããããã®ã»ã¯ã·ã§ã³ã§ã¯ãCèšèªã®èµ·æºãèæ¯ããã®åŒ·ã¿ãããŒãºããããŠç£æ¥åéã§ã®äœ¿çšã«ã€ããŠè©³ãã解説ããŸãã
4.1. Cèšèªã®èµ·æºãšèæ¯
Cèšèªã¯ã1970幎代åé ã«AT&Tãã«ç 究æã§Dennis Ritchieã«ãã£ãŠéçºãããŸãããåœæããªãã¬ãŒãã£ã³ã°ã·ã¹ãã ã®éçºãããŒããŠã§ã¢ã®å¶åŸ¡ãå¹ççã«è¡ãããã®èšèªãšããŠèšèšãããŸãããCèšèªã®ç»å Žã«ãããããè€éãªããã°ã©ã ã®éçºãå¯èœãšãªããã³ã³ãã¥ãŒã¿ç§åŠã®çºå±ã«å€§ããè²¢ç®ããŸããã
4.2. Cèšèªã®åŒ·ã¿ãšããŒãº
Cèšèªã®æ倧ã®åŒ·ã¿ã¯ããã®é«ãããã©ãŒãã³ã¹ãšæ±çšæ§ã«ãããŸããçŽæ¥çãªã¡ã¢ãªã¢ã¯ã»ã¹ããã€ã³ã¿æäœãå¯èœã§ãããããããŒããŠã§ã¢ã¬ãã«ã§ã®å¶åŸ¡ã容æã§ãããŸããCèšèªã¯ãã©ãããã©ãŒã ã«äŸåããªããããããŸããŸãªç°å¢ã§ã®åäœãå¯èœã§ãããããã®ç¹åŸŽãããçµã¿èŸŒã¿ã·ã¹ãã ããªãã¬ãŒãã£ã³ã°ã·ã¹ãã ã®éçºãªã©ãå€å²ã«ãããåéã§ã®ããŒãºãé«ãŸã£ãŠããŸãã
4.3. ç£æ¥åéã§ã®Cèšèªã®äœ¿çš
ç£æ¥åéã«ãããŠããCèšèªã¯ãã®åŒ·åãªæ©èœã掻ãããŠå¹ åºã䜿çšãããŠããŸããèªåè»ç£æ¥ãèªç©ºå®å®ãå»çæ©åšãªã©ããªã¢ã«ã¿ã€ã æ§ãæ±ããããåéã§ã®ã¢ããªã±ãŒã·ã§ã³éçºã«ãããŠãCèšèªã¯ãã®ä¿¡é Œæ§ãšå¹çæ§ããéžã°ããŠããŸãããŸããIoTããã€ã¹ã®å¢å ã«äŒŽããCèšèªã掻çšããçµã¿èŸŒã¿ããã°ã©ãã³ã°ã®éèŠãé«ãŸã£ãŠããŸãã
5. Cèšèªãã¬ãŒã ã¯ãŒã¯ã®å®è·µå©çšæ³
ããã°ã©ãã³ã°ã®å®è·µã«ãããŠããã¬ãŒã ã¯ãŒã¯ã®é©åãªå©çšã¯éåžžã«éèŠã§ãããã®ã»ã¯ã·ã§ã³ã§ã¯ãCèšèªãã¬ãŒã ã¯ãŒã¯ã®å®è·µçãªå©çšæ¹æ³ã«ã€ããŠãéžã³æ¹ããéçºã®å ·äœäŸããããŠå¹ççãªã»ããã¢ããæ¹æ³ãŸã§è©³ãã解説ããŸãã
5.1. ãã¬ãŒã ã¯ãŒã¯ã®éžã³æ¹
ãã¬ãŒã ã¯ãŒã¯ãéžã¶éã«ã¯ããããžã§ã¯ãã®èŠä»¶ãç®çãæ確ã«ããããã«åããããã®ãéžæããããšãéèŠã§ãããŸããã³ãã¥ããã£ã®ãµããŒããããã¥ã¡ã³ãã®å å®åºŠãåŠç¿æ²ç·ãªã©ãèæ ®ãããšããã§ããããããã«ããã¬ãŒã ã¯ãŒã¯ã®æŽæ°é »åºŠãã»ãã¥ãªãã£ã®å¯Ÿå¿ç¶æ³ã確èªããŠãé·æçãªãµããŒããæåŸ ã§ãããã®ãéžã¶ããšãæšå¥šãããŸãã
5.2. å®éã®éçºäŸ
ãã¬ãŒã ã¯ãŒã¯ãå©çšããéçºã®äžäŸãšããŠããŠã§ãã¢ããªã±ãŒã·ã§ã³ã®éçºãæããããŸããCèšèªãã¬ãŒã ã¯ãŒã¯ã䜿çšããããšã§ãããŒã¿ããŒã¹ã®æ¥ç¶ããŠãŒã¶ãŒèªèšŒãAPIã®å®è£ ãªã©ãè€éãªæ©èœãå¹ççã«å®è£ ããããšãã§ããŸãããŸãããã¬ãŒã ã¯ãŒã¯ã®æã€ãã³ãã¬ãŒãæ©èœã掻çšããããšã§ãUIã®ãã¶ã€ã³ãã¬ã€ã¢ãŠãã®èª¿æŽãã¹ã ãŒãºã«è¡ããŸãã
5.3. ã»ããã¢ãããšã¹ã¿ãŒãããã·ã¥ã®æ¹æ³
ãã¬ãŒã ã¯ãŒã¯ã®ã»ããã¢ããã¯ãå ¬åŒããã¥ã¡ã³ããã¬ã€ããåç §ããªããè¡ããšã¹ã ãŒãºã§ããåããŠã®ã»ããã¢ããã§ã¯ããµã³ãã«ãããžã§ã¯ããäœæããŠããã¬ãŒã ã¯ãŒã¯ã®åºæ¬çãªåäœã確èªããããšãããããã§ããããã«ããããã¬ãŒã ã¯ãŒã¯ã®æ§é ãåäœåçãç解ãããããªããŸãããŸããéçºãå§ããéã«ã¯ããã¬ãŒã ã¯ãŒã¯ã®æäŸãããžã§ãã¬ãŒã¿ããŒã«ãå©çšããŠãå¿ èŠãªãã¡ã€ã«ããã£ã¬ã¯ããªæ§é ãèªåçæããããšã§ãã¹ã¿ãŒãããã·ã¥ãåãããšãã§ããŸãã
6. ãŸãšã
ãã®èšäºãéããŠãCèšèªãã¬ãŒã ã¯ãŒã¯ã®æŠèŠããå®è·µçãªå©çšæ¹æ³ããããŠãã®å°æ¥æ§ãŸã§ãåŠã¶ããšãã§ããŸãããæåŸã«ããã¬ãŒã ã¯ãŒã¯ã®åŠç¿ãªãœãŒã¹ãç¶ç¶çãªåŠç¿ã®éèŠæ§ã«ã€ããŠè§ŠããŠã¿ãŸãããã
6.1. Cèšèªãã¬ãŒã ã¯ãŒã¯ã®å°æ¥æ§
Cèšèªãã¬ãŒã ã¯ãŒã¯ã¯ããã®å¹çæ§ãæè»æ§ãããä»åŸãå€ãã®éçºè ã«æ¯æãããããšã§ããããç¹ã«ãIoTããã€ã¹ã®å¢å ãçµã¿èŸŒã¿ã·ã¹ãã ã®çºå±ã«äŒŽããCèšèªã掻çšããéçºã®éèŠã¯ããã«é«ãŸããšäºæ³ãããŸããããããããæ°ãããã¬ãŒã ã¯ãŒã¯ãããŒã«ãç»å Žããããšã§ãããå¹ççãªéçºãå¯èœãšãªãã§ãããã
6.2. Cèšèªãã¬ãŒã ã¯ãŒã¯ã®åŠç¿ãªãœãŒã¹
ãã¬ãŒã ã¯ãŒã¯ã®åŠç¿ãå§ããéã«ã¯ãå ¬åŒããã¥ã¡ã³ãããªã³ã©ã€ã³ã³ãŒã¹ãæžç±ãªã©ã®ãªãœãŒã¹ã掻çšããããšãããããã§ãããŸããå®éã«æãåãããŠãããžã§ã¯ããäœæããããšã§ãç解ãæ·±ããããšãã§ããŸããããã«ãã³ãã¥ããã£ããã©ãŒã©ã ãå©çšããŠãä»ã®éçºè ãšæ å ±äº€æãããããšãå¹æçã§ãã
6.3. ç¶ç¶çãªåŠç¿ã®éèŠæ§
æè¡ã®é²åã¯æ¥é²ææ©ã§ãããç¶ç¶çãªåŠç¿ãéåžžã«éèŠã§ããç¹ã«ãã¬ãŒã ã¯ãŒã¯ãã©ã€ãã©ãªã¯é »ç¹ã«æŽæ°ããããããææ°ã®æ å ±ããã£ããã¢ããããããšã§ãå¹ççãªéçºãç¶ããããšãã§ããŸãããŸããæ°ããç¥èãã¹ãã«ã身ã«ã€ããããšã§ãããå¹ åºãåéã§ã®æŽ»èºãæåŸ ã§ããŸãã
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