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2 ‡kÖwY - 8g welq - Z_¨ I †hvMv‡hvM cÖhyw³ পরিচিতি ‡gvt LvBiæj Bmjvg wmwbqi wkÿK (AvB wm wU) cywjk jvBÝ ¯‹zj GÛ K‡jR, iscyi

3 ছবিগুলো মনোযোগ সহকারে দেখ

4 wfwWIwU g‡bv‡hvM mnKv‡i †`L

5 তোমরা কি বলতে পারবে এসব কী সম্পর্কিত ?

6 AvR‡Ki cv‡Vi welq

7 GB cvV ‡k‡l Avgiv.............................. *Kw¤úDUvi †bUIqv‡K©i msÁv ej‡Z cvie *‡bUIqvK© U‡cvjwRi msÁv ej‡Z cvie *wewfbœ cÖKvi ‡bUIqvK© U‡cvjwRi Kvh©c×wZ eY©bv Ki‡Z cvie *wewfbœ cÖKvi ‡bUIqvK© U‡cvjwRi bvg ej‡Z cvie

8 Kw¤úDUvi †bUIqvK© t Kw¤úDUvi †bUIqvK© wZb cÖKvi.................. GKwU Kw¤úDUvi n‡Z Aci GK ev GKvwaK Kw¤úDUv‡i Z_¨ wewbgq c×wZ‡K Kw¤úDUvi †bUIqvK© e‡j| 1. Local Area Network (LAN) 2. Metropolitan Area Network (MAN) 3. Wide Area Network (WAN)

9 Local Area Network (LAN) ‡hme †bUIqvK© Lye KvQvKvwQ Aew¯’Z Kw¤úDUvi mg~n ev hš¿cvwZi g‡a¨ Z_¨ wewbg‡qi Kv‡R e¨envi Kiv nq Zv‡K Local Area Network (LAN) e‡j|

10 Local Area Network (LAN) Gi U‡cvjwR cuvP cÖKvi.... 1. Bus U‡cvjwR 2. Ring U‡cvjwR 3. Star U‡cvjwR 4.Tree U‡cvjwR 5. Mesh U‡cvjwR

11 Bus U‡cvjwR GB U‡cvjwR‡Z GKUv gyj e¨vK‡evb ev jvB‡bi mv‡_ me¸‡jv Kw¤úDUvi Ry‡o †`qv nq| GB c×wZ‡Z †Kvb Kw¤úDUvi †Kvb wbw`©ó Kw¤úDUv‡i Z_¨ †cÖiY Ki‡j †m Z_¨ me Kw¤úDUv‡i hvq| ïaygvÎ DwÏó Kw¤úDUvi Z_¨wU MÖnY K‡i| Ab¨ me Kw¤úDUvi Z_¨wU D‡cÿv K‡i|

12 Ring U‡cvjwR Amyweav t ‡h †Kvb GKwU Kw¤úDUvi bó n‡j cy‡iv †bUIqvK© APj n‡q c‡i| mgvavb t GB U‡cvjwR‡Z cÖ‡Z¨KUv Kw¤úDUvi Zvi cv‡ki Ab¨ `yBUv Kw¤úDUv‡ii mv‡_ hy³ _v‡K| †cÖwiZ Z_¨wU wbw`©ó c‡_ PµvKv‡i Nyi‡Z _v‡K| ïaygvÎ DwÏó Kw¤úDUvi Z_¨wU MÖnY K‡i| bó Kw¤úDUvi ev` w`‡q bZzb K‡i wis ˆZwi K‡i G mgm¨vi mgvavb Kiv hvq|

13 Star U‡cvjwR GB U‡cvjwR‡Z cÖ‡Z¨KUv Kw¤úDUvi GKwU †K›`ªxq myBP A_ev nve Gi mv‡_ hy³ _v‡K| mgvavb t bó nve ev myBP cwieZ©b K‡i G mgm¨vi mgvavb Kiv hvq| Amyweav t nve ev myBP bó n‡j cy‡iv †bUIqvK© APj n‡q c‡i| myweav t ms‡hvM cÖwµqv AZ¨šÍ mnR

14 Ttree U‡cvjwR mgvavb t GB U‡cvjwR †`L‡Z A‡bKUv Mv‡Qi gZB| cÖK…Z c‡ÿ K‡qKwU ÷vi U‡cvjwR‡K GKÎ K‡i GB U‡cvjwR ˆZwi nq| bó nve ev myBP cwieZ©b K‡i G mgm¨vi mgvavb Kiv hvq| Amyweav t ‡h †Kvb GKwU nve ev myBP bó n‡j AvswkK †bUIqvK© APj n‡q c‡i|

15 Mesh U‡cvjwR GB U‡cvjwR‡Z cÖ‡Z¨KwU Kw¤úDUvi ci¯ú‡ii mv‡_ hy³ _v‡K| myweav t ‡h †Kvb GKwU Kw¤úDUvi bó n‡j †bUIqvK© APj nq bv| Amyweav t ms‡hvM cÖwµqv RwUj|

16 g~j¨vqb 1.Kw¤úDUvi †bUIqvK© Kx 2.‡bUIqvK© U‡cvjwR Kq cÖKvi I Kx Kx? 3.wis U‡cvjwRi msÁv ej| 4.÷vi U‡cvjwRi myweav Kx? 5.Ttree U‡cvjwR Avm‡j Kx ? 6.Mesh U‡cvjwRi cÖavb Amyweav Kx ? 7.‡Zvgv‡K GKwU †bUIqvK© ‰Zwi Ki‡Z ejv nj| Zzwg †Kvb c×wZ e¨envi Ki‡e? †Kb?

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