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1.ÊÒÁÒöºÍ¡ÇÔÇѲ¹Ò¡ÒÃÃкºâ·ÃÈѾ·ìà¤Å×è͹·Õèä´
é2.ÊÒÁÒöºÍ¡ÃٻẺ Ãкº¢Í§´ÒÇà·ÕÂÁ
3.͸ԺÒÂÅѡɳСÒÃãªé§Ò¹¢Í§´ÒÇà·ÕÂÁä´é
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»Õ ¾.È. ¡ÒûÃдÔÉ°ì ¤Ô´¤é¹áÅоѲ¹Ò
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2386 Alexander Bain ¹Ñ¡¿ÔÊÔ¡ÊìªÒÇÊ¡ç͵µì»ÃдÔÉ°ìà¤Ã×èͧâ·ÃÊÒÃ
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2387 Samuel Morse ¼Ùé»ÃдÔÉ°ì áÅÐÊÒ¸Ôµ¡Ò÷ӧҹ¢Í§à¤Ã×èͧâ·ÃàŢ俿éÒ
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2419 Alexander Graham Bell »ÃдÔÉ°ìà¤Ã×èͧâ·ÃÈѾ·ì
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2420 ºÃÔÉÑ· Western Union ãËéºÃÔ¡ÒÃâ·ÃÈѾ·ì¤ÙèÊÒÂÃÐËÇèÒ§ Somerville, MA áÅÐ Boston
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2436 àÃÔèÁÁÕºÃÔ¡ÒáÃШÒÂàÊÕ§à¾Å§ ¢èÒÇ ÃÒ¤ÒËØé¹ ÍèÒ¹áÅÐÊ͹¼èÒ¹·Ò§ÊÒÂâ·ÃÈѾ·ìã¹àÁ×ͧºÙ´Òà»Êµì
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2449 Lee de Forest »ÃдÔÉ°ìËÅÍ´ÊÙÒ¡ÒÈ
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2458 ÁÕ¡ÒÃãªéµÑÇ¢ÂÒÂÊÑÒ³â´ÂãªéËÅÍ´ÊØÒ¡ÒȤÃÑé§áááÅÐ E.T. Whitaker ¾Ñ²¹Ò·ÄɮաÒà Sampling «Öè§à»ç¹¾×é¹°Ò¹¢Í§à·¤â¹âÅÂÕ PCM áÅÐ TCM 㹻Ѩ¨ØºÑ¹
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2463 G. Valensi ¾Ñ²¹Ò¤ÇÒÁ¤Ô´à¡ÕèÂǡѺ Time Domain Multiplexing
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2469 Baird ªÒÇÊ¡ç͵µì áÅÐ Jenkins ªÒÇÍàÁÃÔ¡ÒÊÒ¸Ôµà¤Ã×èͧâ·Ã·Ñȹìâ´ÂãªéËÅÍ´¹ÕÍ͹
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2481 ºÃÔÉÑ· Bell àʹͪØÁÊÒÂâ·ÃÈѾ·ì (Central office Switches) Ẻ Crossbar
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2482 John Atanasoff áÅÐ Clifford Berry »ÃдÔÉ°ìà¤Ã×èͧ¤ÍÁ¾ÔÇàµÍÃìÍÔàÅç¡·Ã͹ԡÊìà¤Ã×èͧáá
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2497 ºÃÔÉѷ⫹ÕèàʹÍà¤Ã×èͧÇÔ·ÂØ·ÃÒ¹«ÔÊàµÍÃìà¤Ã×èͧáá
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2500 ÃÑÊà«ÕÂÊ觴ÒÇà·ÕÂÁ´Ç§ááª×èÍ Sputnik
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2503 ºÃÔÉÑ· AT&T µÔ´µÑé§ÃкºªØÁÊÒÂâ·ÃÈѾ·ìÍÔàÅç¡·Ã͹ԡÊì¤ÃÑé§áá
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2511 ºÃÔÉÑ· AT&T àÃÔèÁ¾Ñ²¹Ò Integrated Digital Services Network (ISDN)
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2512 àÃÔèÁÁÕ¡ÒþѲ¹ÒÍÔ¹àµÍÃìà¹çµ
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2516 àÃÔèÁÁÕ The File Transfer Protocol (FTP) áÅÐ Ethernet
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2524 ºÃÔÉÑ· Hayes àʹÍâÁà´çÁ¤ÇÒÁàÃçÇ 300 Bps. ºÃÔÉÑ·äͺÕàÍçÁàʹÍà¤Ã×èͧ¤ÍÁ¾ÔÇàµÍÃìÊèǹºØ¤¤Å áÅÐÁÕ¡ÒÃàÃÔèÁãËéºÃÔ¡ÒÃâ·ÃÈѾ·ìà¤Å×è͹·Õèà«ÅÅÙÅèÒÃìã¹ÊÇÕà´¹
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2530 Bellcore àʹͤÇÒÁ¤Ô´ Asymmetric Digital Subscriber Ling (ADSL)
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2535 ¡Óà¹Ô´ Word wide Web
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2539 Rockwell àʹÍâÁà´çÁ¤ÇÒÁàÃçÇ 56 Kbps.
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2544 àÃÔèÁãËéºÃÔ¡ÒÃÃкºâ·Ã¤Á¹Ò¤Áà¤Å×è͹·ÕèÂؤ·Õè 3
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ÇÔÇѲ¹Ò¡ÒâͧÃкºâ·ÃÈѾ·ìà¤Å×è͹·Õè
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Ãкºâ·ÃÈѾ·ìÁ×Ͷ×ÍËÃ×Íâ·ÃÈѾ·ìà¤Å×è͹·Õèä´éÁÕ¡ÒÃãªé§Ò¹¤ÃÑé§áá㹹¤Ã«Ô¤Òâ¡ àÁ×èÍ»ÃÐÁÒ³ÂÕèÊÔº»ÕÁÒáÅéÇ à»ç¹Ãкº AMPS Ãкºâ·ÃÈѾ·ìà¤Å×è͹·ÕèÃØè¹·Õè 1 (1st Generation-1G) ¹Õéà»ç¹Ãкº·ÕèÁÕ¡ÒõԴµèÍÃÐËÇèҧʶҹÕà¤Å×è͹·ÕèáÅÐʶҹհҹ·ÕèãªéẺ FDMA (Frequency Division Multiple Access) â´Â·ÕèÊÑÒ³àÊÕ§¾Ù´¨Ð¶Ù¡Êè§áººÍ¹ÒÅçÍ¡ ¹Í¡¨Ò¡Ãкº AMPS áÅéÇ ÂѧÁÕÃкº¢Í§ÂØâû ¤×Í NMT ¢Í§¡ÅØèÁ»ÃÐà·ÈÊ᡹´Ôà¹àÇÕÂ
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µèÍÁÒä´éÁÕ¡ÒþѲ¹Òâ·ÃÈѾ·ìà¤Å×è͹·ÕèÃØè¹·Õè 2 (2st Generation-2G) à¾×èÍãËéÃкºÁÕ¤ÇÒÁ¨Ø (Capacity) à¾ÔèÁ¢Öé¹ áÅÐÁÕÃкº¤ÇÒÁ»ÅÍ´ÀÑ (Security) ¢Í§ÊÑÒ³·ÕèÊè§áÅСÒûéͧ¡Ñ¹ ¡ÒÃãªéà¤Ã×èͧ·ÕèäÁèä´éŧ·ÐàºÕ¹ Ãкº 2G ¨ÐãªéËÅÑ¡¡Òà TDMA (Time-Division Multiple Access) Ãкº 2G ÁÕ DAMPS ¢Í§ÊËÃÑ°ÍàÁÃÔ¡Ò GSM ¢Í§ÂØâû IS-95 ËÃ×Í cdmaOne ¢Í§ÊËÃÑ°ÍàÁÃÔ¡Ò áÅÐ PDC ¢Í§Õè»Øè¹
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ÊÓËÃѺÃкºâ·Ã¤Á¹Ò¤ÁÃØè¹·ÕèÊÒÁ (3st Generation-3G) ¹Ñé¹ ä´éÁÕͧ¤ì¡Ã·ÕèÇÔ¨ÑÂáÅоѲ¹ÒÃкº 3G ËÅÒÂͧ¤ì¡Ã·Ñé§ã¹ÂØâû ÍàÁÃÔ¡Ò Õè»Øè¹ ¨Õ¹ áÅлÃÐà·ÈÍ×è¹ æ áÅÐä´éÈÖ¡ÉÒÁÒ¡ÇèÒÊÔº»Õ »Ñ¨¨ØºÑ¹ä´éÁÕ¡Ò÷´ÊͺÀҤʹÒÁ áÅШÐàÃÔèÁ¹ÓÁÒãªéã¹»Õ ¾.È. 2544 ¡ÒþѲ¹ÒÃкº 3G ¹Ñé¹ Áըش»ÃÐʧ¤ìËÅÑ¡ æ ¤×Í ¤ÇÒÁµéͧ¡Ò÷Õè¨ÐãËéÁÕÁҵðҹà´ÕÂǡѹ (Áҵðҹ IMT 2000) à¾×èÍʶҹÕà¤Å×è͹·Õèã´ æ ÊÒÁÒöãªéä´é·ÑèÇâÅ¡ áÅФÇÒÁµéͧ¡Ò÷Õè¨ÐãËéÁÕ¡ÒÃÃѺÊ觢éÍÁÙÅ·ÕèàÃçÇ¢Öé¹à¾Õ§¾Í¡Ñº¡ÒÃãªé§Ò¹ÁÑŵÔÁÕà´Õ â´Â·ÕèÁդسÀÒ¾·Ñ´à·ÕÂÁ¡ÑºÃкºâ·Ã¤Á¹Ò¤ÁÁÕÊÒ (Fixed Line)ã¹ÃÒ¤Ò·ÕèàËÁÒÐÊÁ
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