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Job Digest Computer and ICT ??????? ???? ??????????
by Farhana Rahim on 2024-08-16 22:53:43 Last Updated by Farhana Rahim on2024-08-16 22:53:43
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??????? ???? ?????????? (Cellular Data Network)
# ?????? ???????? ?? ???? ???????? ??????? (????? ?????? ?????? ???? ???? ?????? ? ?????? ?????)?
# ?????? ???????? ?????? ??????(Mobile Station ?? MS) ???? ?????? ????? ?? ?????? ????? ?? ????????? ??? ????? ???????? Land Unit ??? ????
# ?????? ???? ?????????? ?? ??????? ?????????? ??? ??????? ??????? ??? ??? ???? ??? ???? ??????? ????? ??? (Cell) ???? (?????? ???????? ???? ??? Cell Phone)
# ???? ?????????? ??? ???? ??? ???? ????? ???? ??? ???? ???? ??? ??? ?????? (Base Station ?? BS) ??? ????
# Base Station ???? ?? ?????, ?? ???????? ????????, ????? ??????? ???????????? ???????? ??????????? ????
# ???? ???? ????? ????????? ????????????? ????? ??????? (IG = First Generation) ?????? ??? ???? ??? ????
# ????? ??????? ?????? ????? ??? ??? AMPS (Advanced Mobile Phone System).
# ????? ????????? ????? ??????? ????? ???????? ??????? ???
# ???????? ??????? (2G Second Generation) ?????? ????? ?????????? ??? ??????? ??????? ????????
# 2G ??????? ??????? ??????? ????? ???????? ??????? ????
# 2G ??????? ????????? ???????? ?????? ???? ????
# ???? ???? ????? ?????? ????????? ?????? ??? ??????? ???? ????
# 3G ???????? Band Width ??? ? ??????????
# 3G ?????????? 2G ?????????? ??????? ???? ?????? ?????? ????
# 3G ?? ??????? ??? ???? ????? ( ????? ?????? ???? ??????? ??? ??????? /???????; ????? ??? ??????? ???? ??? ???????/??????? ??? ??? ????????? ???? ? ??????? /???????)?
# Application of 3G ?? 3G‘? ???????-
-Global Positioning System (GPS)
-Location based Services
-Mobile TV
-Telemedicine
-Video Conferencing
-Video on demand
-High Speed Internet
# ????????? ????????? 3G ???? ???? ??? ??????-?? ??????? ?????
# ???? ???? ????? ????? ????????? 3G ?????????? ???? ??? ??????? ???????? ?????? ???????
# ????????? 4G ???? ???? ??? ?????? ??????? ???? ?????
# ?????? ??????? (4G Fourth Generation)?? ??? 3G ?? ????? ?? ??? ?????
# 4G ?? ?????? ?????????? ?? Mbps.
# 3G ?? ???????? ?????????? ??????? ?????? ??? 4G?
# ????????? ?????????? ?????????? ??? ??? ????? ???? ?????? ????
# LTE (Long Term Evolution) ??? ??????? ???????????????????? ???? 3G ???????
# ????? ?????? ???????? ???????? ?? ???? ?????????? ??? ??? ???????/??????? ??? ????? ???????? ???????? ?? ???? ?????????? ??? ? ???????/????????
# ???????????? (Wimax) ???? ???? ???? ??????????? ????????? ?????
# WiMAX ?? ???????? ?? (Worldwide Inter Operability for Microwave Access)
# (WiMAX )???? ???????? ??????????? ??????????
# ???????? ????????? ????????? ??????? ???? WiMAX ??????? ??? ????
# WiMAX ?? ???? ?????????? ??????? ???????? ????????? ?????? ?? Wi-Fi.
# Wi-Fi (?????-???) ?? ???????? ?? (Wireless Fidelity)
# ????-??? (Bluetooth) ??? ???????? ????????? ?????? ?????????? (PAN-Personal Area Network).
# Bluetooth ?? ?????? ??????? ?? ???? ??? ????? ???? ?????
# Bluetooth ??????????? ????? ????? (Radio Wave) ??????? ????
# WiMAX ?? ????????????? ??? IEEE 802.16;
# WiFi ?? ????????????? ?? IEEE 802.11. ???
# Bluetooth ?? ????????????? ??? IEEE 802:15
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