лͧ͢

к͢ (Network) кդ 2 ͧ͡ѹ

Ӥѭлªͧк͢㹴ҹҧ մѧ

1 öػóѹ (Peripheral sharing)

2 Ϳѹ (Software sharing)

3 ѹ (File sharing)

4 ҧؤ (Electronic communication)

5 (Cost)

6 ú͢ (Network Management)

7 кѡҤʹ (Security system)

8 ʶҾͧк (Stability)

9 ͧ (Back up)

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㹻Ѩغѹ ҹѴͧ͢µҴҧʵк͢¹鹤ͺ ö 3 к ѧ

1. к͢¤ (Local Area Network LAN) к͢дѺͧ բҴ ͺ鹷ӡѴ §ѹ ࢵ鹷ǡѹ Ҥǡѹ ͧǡѹ 㹵֡ǡѹ ֡ѹ 繵 ͧõԴ͡ѺͧѾ͡觻 кŹջª öͧ ͧ͡ѹ ö觢š¹ѹҧдǡ Ǵ ѧöѾҡѹա к͢ LAN к͢·աҹͧõҧ ҡش

2. к͢¤дѺͧ (Metropolitan Area Network MAN) к͢дѺͧ ա§ѹ㹾鹷ҧšк LAN Ҩ§ѹ㹨ѧѴ ѡɳС§ҧšѹ㹪ǧ 5-40 ҹûҧ ǹʧ ͡

3. к͢ (Wide Area Network WAN) к͢дѺ ͢·ػóҧšѹҴ¡ѹ Ҩеͧ繡õԴáѹдѺ ջͷš ҧ Թ絶͢ WAN ˹ ͢Ҹó Ңͧ

к͢¤ (Local Area Network LAN )

ʶһѵ¡ͧк͢ (Network Architecture) (Topology) ѡɳзҧҾ (¹͡) ͧ͢ ѡɳТͧ§ҡѺػó硷͹ԡҧ ͢´¡ѹͧ

1. Ẻ (Star) ѡѺ ͹ѺкѾ äǺзʶҹٹҧ ˹ҷ繵Ե ŷк͢¨еͧҹͧٹҧ (Center Computer) ѡɳС§õԴ÷ѡɳФ¡Ѻٻ (STAR) ᩡ ٹҧͧ Ѻ繨شҹõԴ͡ѹҧء˹͢ ٹҧ֧˹ҷٹǺ鹷ҧ÷ ͡ҡٹҧѧ˹ҷٹҧա ͢Ẻ STAR Ẻ 2 ȷҧ¨͹حҵ§˹ҹ鹷ö觢͢ ֧͡ʷ ˹觢͢ǡѹ ͻͧѹêѹͧѭҳ

2. Ẻ (Bus) к͢ LAN Ẻ BUS ѺẺշѺѹҡشҵʹյ֧Ѩغѹ ˵ؼҧ˹觡öԴк ѡ еԴػó ͧ෤ԤҡѺ͹ ѡɳС÷ӧҹͧ͢Ẻ BUS ػóء˹ء˹͢¨еͧ§ҡѺѡ¡ "" (BUS) ˹˹觵ͧè觢ѧա˹˹͢ Ũҡ˹觨ж١ºٻͧࡨ ࡨлСͺµ˹觢ͧмѺ Т ºʨẺ 2 ȷҧ¡ѧ· 2 ҹͧ µç· 2 ҹͧʨ (Terminator) ˹ҷٴ׹ѭҳ ͻͧѹѭҳŹз͹Ѻѧա 繡ûͧѹêѹͧѭҳ Թҧ躹 ѭҳŨҡ˹ʨżҹѧ· 2 ҧͧ ˹ҡѺʨФµǨҵ˹觻·ҧҡѺࡨŹ鹵çѺ˹觢ͧ ѺŹ˹ лѭҳŹ鹼ҹ ҷء ˹͢Ẻ BUS öѺѭҳ §˹·ҧ§˹ҹ鹷ѺŹ

3. Ẻǧǹ (Ring) ͢Ẻ RING 繡觢Ţüҹ͢ ·Ţèǹ͢㹷ȷҧ͹ǧǹ RING ͧ ըشǡѺ͢Ẻ BUS ˹൪ѹվյШ˹ 1 ͧ 觨з˹ҷ÷繵͡ǹǢͧࡨ Ѻ觢͡ҡ˹ ˹ҷѺࡨŷżҹҨҡ ͵Ǩͺ繢ŷ˹ ФѴ͡ŷ觵Ѻ˹ͧ л¢Źѧվյͧ˹Ѵ

繢ͧк͢ ÷йҤ͡ѹ͢¹ еͧػóҧ ѧ

к͢¨еͧդͧСͺ鹰ҹ 繵ͧ繻ǡѹ öйӤҡ͡ѹ Ҩͧի Թͪ ٹԡ൪ѹ

Ѿҡ ͢ ¶֧ػó öҡѺ͢ ͧ ῡػó红 繵

ѭҳͤзѾҡ ͢ ŷ㹻ѨغѹẺ¡ѹ Ẻդ㹡Ѻ觢 Ҥᵡҧѹ ǹ͡ҧù ѺҴлͧ͢·

(Modem) Ҩҡ "Modulator/Demodulator" кǹ÷ŧѭҳԨԷѭҳ͹͡ ¡ ʹŪ (Modulation) ˹ҷ¡ (Modulator) кǹ÷ŧѭҳ͹͡ѭҳԨԷ ¡ ʹŪ (Demodulation) ˹ҷ¡ (Demodulator)

͢Ź (Network Interface Card : NIC) ػóҧѺŤ͢͡ 촹ǹ˭еԴͧ ºŧ촢ͧ ǹ㹡͡ѺŨҧҹѧͧͧ 㹡äǺ Ѻ觢 еǨͺͼԴҴԴ

Ѻ (Hub) ػó㹡͢ ѡɳ繪ͧºҧͧѺͧի ˹ҷͧ͹

վյ (Repeater) ػó㹡¹ǡҧѭҳҡǡҧ˹ѧաǡҧ˹ ҡͿԡѧ͡ ͡ҧǡҧǡѹ վյз͢·ͧ͹ѹ ·ѭҳ觷ض֧ѹ վյ֧աáѹ ջª㹡ͤǢ

Դ (Bridge) ػóѡ㹡ǧŹҴ¡ѹ ö¢ͺࢵͧ LAN ͡ ·ԷҾͧк Ŵŧҡѡ ѡж١㹡͢ ͧҴ¡ѹ͢˭ §͢ ͢ ҹöԴ͡Ѻ͢

(Router) ػó˹ҷк͢кҴ¡ѹ ¡ѺԴ ǹ÷ӧҹѺ͹ҡҺԴҡ 鹷ҧ§ҧ͢繵ҧ鹷ҧ ¡ Routing Table ö˹ҷѴ鹷ҧ͡鹷ҧش㹡Թҧ ͡õԴҧ͢ҧջԷҾ

ࡵ (Gateway) ػóդö٧ش㹡͢µҧ Ҵ¡ѹ բմӡѴ ҧ͢µҧк зⵤ ᵡҧѹ͡ ࡵŧⵤѺػóҧԴѹ ѴػóҤᾧ еԴҹҡ ࡵҧǨسѵ㹡㹵 зҨҿѧѹ÷ӧҹҹѡҤʹ·¡ (Firewall)

 

ͧ͢

1. кԹ (Internet) к͢¤ ͢ ա§Ҵ¡ѹ ·ءͧöͶ֧ѹš

2. кԹ (Intranet) к͢¤㹡ͧͧù ෤բͧԹ (Inernet) 繾鹰ҹ

3. к͡ (Extranet) 繡§ҧͧõҧ ԹҴ¡ѹ ͡絹 ͧ÷ѹö觢ʹҧ͢Թ絢ͧѺͧ ͼԡҧʹ

ʹк͢

äء͢͢

1. Դҡ ˵ѡ٭ǹ˭Դҡػó (Hardware) 㹡红Źͧ

2. Ѻͺ㹡 мҺ֧кҹԧ͹ա ֧Ժѵ١ͧ ֧Դ¡Ѻ

3. غѵ˵ ͧջѭ ѡźҧ 駷 ŹԴ٭

4. غѵ˵طԴǷء觷ءҧ٭ 駢㹤

5. ¸ҵ ¸ҵԡѺçա˹觷ö¤Т͢·㹷ѹ

ûͧѹ͢

1. ᾧ (Firewall) ᾧ繫Ϳɷ١͡ẺѺ˹ҷͧѹ蹷ԷԺءء͢

2. ʼҹ (Password) ͧ͹ѭҪԡͧʼҹ¡͹ 觹繵ǡ˹Ҽ餹öҶ֧˹ кͧѹѭҪԡʼҹҨ м繼Ѻ͹حҵ෤Ԥʼҹҡͧ ѧ鹼ʤõҡ ͧŵǴ

3. ͧ͢ (Back up) 红ػó ͡˹ͨҡͧ͢¹

ûءҹͧк͢¤

硷͹ԡ (Electronic mail: e-mail) 繡ͧ觢ͤٻẺͧ硷͹ԡѧؤ¡ùؤŷӡèеͧժзٻ e-mail addres

ɳ§ (Voice mail) 繡觢ͤٻẺͧ§ҹػó硷͹ԡͧ §ж١觼ҹйػóѹ֡§ҨաԴѧ

(Facsimile or Fax) 繡觢ͤ˹ҡдɨҡͧѧͧѺ öͧ㹡觢ǡѺͧ ¨еͧ੾Чҹ

Video conferencing 繡â¡Ҿ§ ҡ˹ա˹ 㹡 Video conferencing еͧػóѺúѹ֡Ҿػóѹ֡§ ·Ҿ§仹ҨҾ͹Ƿ§Сͺ

Global Positioning System (GPSs) ккص˹觢ͧ ѵ 觢ͧ¢ͧк ѨغѹաùкԹ ͧԹ Ѳкص˹觢ͧö¹