Basic Computer Science

ืžื›ื™ืœ ืžื•ื“ืขื•ืช
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ืฆื™ืœื•ื ืžืกืš
ืฆื™ืœื•ื ืžืกืš
ืฆื™ืœื•ื ืžืกืš
ืฆื™ืœื•ื ืžืกืš
ืฆื™ืœื•ื ืžืกืš
ืฆื™ืœื•ื ืžืกืš
ืฆื™ืœื•ื ืžืกืš
ืฆื™ืœื•ื ืžืกืš

ืžื™ื“ืข ืขืœ ื”ืืคืœื™ืงืฆื™ื” ื”ื–ื•

ืžื˜ืจืชื• ืฉืœ App ื–ื” ื”ื™ื ืœื”ื ื™ืข ืกื˜ื•ื“ื ื˜ื™ื ื•ืื ืฉื™ ืžืงืฆื•ืข ื‘ืจื—ื‘ื™ ื”ืขื•ืœื ืœืชื•ืš ืœืžื™ื“ื” ื›ืœ ืžื•ืฉื’ื™ื ื—ืฉื•ื‘ื™ื ืฉืœ ืžื“ืขื™ ื”ืžื—ืฉื‘ โœด

โ˜† ื–ื” ืžืื•ื“ ืฉื™ืžื•ืฉื™ ืขื‘ื•ืจ ืื ืฉื™ื ืฉืžืชื›ื•ื ื ื™ื ืœื‘ื—ื™ื ื•ืช ืชื—ืจื•ืชื™ ืจืื™ื•ื ื•ืช ืขื‘ื•ื“ื” ื’ื ื›ืŸ

โ—„ ืืคืœื™ืงืฆื™ื” ื–ื• ื”ื•ื›ื ื” ืœืžืชื—ื™ืœื™ื ื•ื›ืŸ ืœืœื•ืžื“ื™ื ืžืชืงื“ืžื™ื ืฉืจื•ืฆื™ื ืœื”ืชืžื•ื“ื“ ืขื ืžื—ืฉื‘ื™ื. App ื”ื•ื ื’ื ืžืื•ื“ ืฉื™ืžื•ืฉื™ ืขื‘ื•ืจ ืกื˜ื•ื“ื ื˜ื™ื ืœืชื•ืืจ ืจืืฉื•ืŸ ืฉืœ ืžื“ืขื™ ื”ืžื—ืฉื‘, ื”ื ื“ืกื”, ืžื ื”ืœ ืขืกืงื™ื, ื ื™ื”ื•ืœ, ืžื“ืข, ืžืกื—ืจ ื•ืืžื ื•ืช, ืฉื‘ื• ืงื•ืจืก ื”ืžื‘ื•ื ืขืœ ืžื—ืฉื‘ื™ื ื”ื•ื ื—ืœืง ืžืชื•ื›ื ื™ืช ื”ืœื™ืžื•ื“ื™ื.

โ– ืœื ืจืง ืกื˜ื•ื“ื ื˜ื™ื ืœืžื“ืขื™ ื”ืžื—ืฉื‘ ืžืงื‘ืœื™ื ื”ื˜ื‘ื•ืช ืžืืคืœื™ืงืฆื™ื” ื–ื•, ืชื—ื•ืžื™ื ืื—ืจื™ื ื›ืžื• ื—ื™ื ื•ืš, ื”ื ื“ืกื”, ืชืงืฉื•ืจืช, ืžื›ื™ืจื•ืช, ืฉื™ื•ื•ืง, ื‘ื—ื™ื ื•ืช ืชื—ืจื•ืชื™ื•ืช, ื‘ื—ื™ื ื•ืช ืœื‘ื“ื™ืงื•ืช ืžื—ืฉื‘, ืžื‘ื—ื ื™ ืžืžืฉืœื”, ืžื•ืจื™ื, ืจืคื•ืื”, ื—ื ื•ืช, ื ื™ื™ื—ื™ื, ื”ื ื“ืกืช ื—ืฉืžืœ, ื”ื ื“ืกืช ืžื›ื•ื ื•ืช, ื”ื ื“ืกืช ืžื›ื•ื ื•ืช, ื”ื ื“ืกืช ื—ื•ืžืจื™ื, ื”ื ื“ืกืช ืžื›ื•ื ื•ืช, ื”ื ื“ืกืช ืžื›ื•ื ื•ืช, ื”ื ื“ืกืช ืžื›ื˜ืจื•ื ื™ืงื”, ื”ื ื“ืกืช ืจื•ื‘ื•ื˜ื™ืงื”, ื ื ื• ื˜ื›ื ื•ืœื•ื’ื™ื”, ื”ื ื“ืกืช ืžื‘ื ื™ื, ื”ื ื“ืกืช ืฆื ืจืช, ื”ื ื“ืกืช ื—ืฉืžืœ, ื”ื ื“ืกืช ื ืคื˜, ื”ื ื“ืกื” ืคื˜ืจื•ื›ื™ืžื™ืช, ื”ื ื“ืกืช ื—ืœืœ, ื”ื ื“ืกืช ืื“ืจื™ื›ืœื•ืช, ื”ื ื“ืกืช ืจืฉืช, ื”ื ื“ืกืช ืจื›ื‘ื•ืช , ื”ื ื“ืกื” ื™ืžื™ืช, ื”ื ื“ืกื” ื›ื™ืžื™ืช, ื”ื ื“ืกืช ื˜ืงืกื˜ื™ืœ, ื˜ื›ื ื•ืœื•ื’ื™ื” ืคื•ืœื™ืžืจ, ื˜ื›ื ื•ืœื•ื’ื™ื” ืคืœืกื˜ื™ืง, ืกื˜ื•ื“ื ื˜ื™ื ืœืคื™ื–ื™ืงื”, ืกื˜ื•ื“ื ื˜ื™ื ืœื›ื™ืžื™ื” ื•ืกื˜ื•ื“ื ื˜ื™ื ื‘ืชื—ื•ื ื‘ื ื•ืฉื.

ใ€ื›ืžื” ืžื•ืฉื’ื™ื ื—ืฉื•ื‘ื™ื ืžื›ื•ืกื™ื ื‘ืืคืœื™ืงืฆื™ื” ื–ื• ืžืคื•ืจื˜ื™ื ืœื”ืœืŸใ€‘

โ‡ข ืชืคื™ืกื” ื‘ืกื™ืกื™ืช

โ‡ข ืชืคืงื™ื“ื• ืฉืœ ื”ืžื—ืฉื‘ ื‘ืขื•ืœื ืฉืœ ื”ื™ื•ื

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ืžืขืจื›ืช

โ‡ข ืฉืคื•ืช ืชื›ื ื•ืช

โ‡ข ื—ื•ืžืจื” ื•ืชื•ื›ื ื”

โ‡ข ืื ืœื•ื’ื™ ื•ื“ื™ื’ื™ื˜ืœื™

โ‡ข ืžืขืจื›ืช ื”ืคืขืœื”

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ืื™ื ื˜ืจื ื˜

โ‡ข ืกื•ื’ื™ ืžื—ืฉื‘

โ‡ข ื˜ืจืžื™ื ื•ืœื•ื’ื™ื” ืฉืœ ืจืฉืชื•ืช ืžื—ืฉื‘ื™ื

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ื™ื™ืฉื•ืžื™ื

โ‡ข ื“ื•ืจื•ืช ืฉืœ ื”ืžื—ืฉื‘

โ‡ข ืขื™ื‘ื•ื“ ื ืชื•ื ื™ื

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ืจื™ืฉื•ืช

โ‡ข ืžืฉืจื•ืช ื”ืงืฉื•ืจื•ืช ืœืžื—ืฉื‘

ืžืกื—ืจ ืืœืงื˜ืจื•ื ื™

โ‡ข ืชื›ื ื•ืช ืชื•ื›ื ื”

ืืœื’ื•ืจื™ืชื ืชืจืฉื™ื ื–ืจื™ืžื”

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ืืงืกื˜ืจื - ื ื˜

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ -

โ‡ข Windows Desktop ืืœืžื ื˜ื™ื

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ืžื•ืœื˜ื™ืžื“ื™ื”

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ื‘ื™ื˜ื—ื•ืŸ

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ืื™ื•ื

ื™ืกื•ื“ื•ืช ืžื“ืขื™ ื”ืžื—ืฉื‘ - ื•ื™ืจื•ืกื™ื

โ‡ข ืžื“ืขื™ ื”ืžื—ืฉื‘: ืงื™ืฆื•ืจื™ื

โ‡ข ืžื“ืขื™ ื”ืžื—ืฉื‘: ืคื™ืชื•ื—

โ‡ข ืžื“ืขื™ ื”ืžื—ืฉื‘: ื—ื“ืฉื ื™ื

ืžืงืฉื™ ืงื™ืฆื•ืจ

โ‡ข ื”ื“ื•ืจ ื”ืฉื ื™

โ‡ข ื”ื“ื•ืจ ื”ืฉืœื™ืฉื™

ื”ื“ื•ืจ ื”ืจื‘ื™ืขื™

ื”ื“ื•ืจ ื”ื—ืžื™ืฉื™

โ‡ข ื‘ืงืจืช ื–ืจื™ืžื” ื•ื‘ืงืจืช ืฉื’ื™ืื•ืช

โ‡ข HDLC

โ‡ข ื˜ื›ื ื™ืงื•ืช ืžื™ืชื•ื’: ืžื™ืชื•ื’ ืžืขื’ืœ

โ‡ข ื”ื—ืœืคืช ื”ื•ื“ืขื•ืช

โ‡ข ืžื™ืชื•ื’ ืžื ื•ืช

โ‡ข ืžื™ืชื•ื’ ืžื ื•ืช ืžื ื•ืช

Opt ืจืฉืช ืื•ืคื˜ื™ืช ืกื™ื ื›ืจื•ื ื™ (SONET)

ืžื“ื•ืข ืœืกื ื›ืจืŸ?

โ‡ข ืชืฆื•ืจื” ืคื™ื–ื™ืช ื•ืจื›ื™ื‘ื™ ืจืฉืช

โ‡ข X.25

โ‡ข ืžืžืกืจ ืžืกื’ืจืช

โ‡ข ืžืขื‘ืจ ืžืฆื‘ ืืกื™ื ื›ืจื•ื ื™ (ATM)

โ‡ข ื˜ื•ืคื•ืœื•ื’ื™ื™ืช ื”ืจืฉืช

โ‡ข IEEE CSMS / ืชืงืœื™ื˜ื•ืจื™ LAN ืžื‘ื•ืกืกื™ ืชืงืœื™ื˜ื•ืจื™ื

โ‡ข IEEE 802.3 ื•- Ethernet

โ‡ข IEEE ืฆืœืฆื•ืœ LAN

โ‡ข ืื•ื˜ื•ื‘ื•ืก ืื•ื˜ื•ื‘ื•ืก (IEEE 802.4)

ืžื”ื™ืจื•ืช ื’ื‘ื•ื”ื” LANs - ื‘ืกื™ืก ื˜ื•ืงืŸ ืžื‘ื•ืกืก

Tol ืกื•ื‘ืœื ื•ืช ืชืงืœื•ืช

LAN LAN ื‘ืžื”ื™ืจื•ืช ื’ื‘ื•ื”ื” - CSMA / CD ืžื‘ื•ืกืก

โ‡ข 100 ื‘ืกื™ืก - T4

โ‡ข 100 BASE TX

โ‡ข Gigabit Ethernet

โ‡ข ืจืฉืชื•ืช LAN ืืœื—ื•ื˜ื™ื•ืช

โ‡ข Bluetooth

ืืจื›ื™ื˜ืงื˜ื•ืจืช Bluetooth

โ‡ข ืจืฉืชื•ืช ืœื•ื•ื™ื™ืŸ

โ‡ข ืœื•ื•ื™ื™ื ื™ื ืื•ืจื‘ื™ื˜ืœื™ื™ื ื‘ื™ื ื•ื ื™ื™ื

โ‡ข GEO ืœื•ื•ื™ื™ื ื™ื

โ‡ข ืžืขืจื›ื•ืช VSAT

โ‡ข ืคืจื•ื˜ื•ืงื•ืœื™ MAC

โ‡ข ื”ืชืงื ื™ื ื‘ืจืฉืช
ืขื“ื›ื•ืŸ ืื—ืจื•ืŸ ื‘ืชืืจื™ืš
25 ื‘ืคื‘ืจืณ 2025

ืื‘ื˜ื—ืช ื ืชื•ื ื™ื

ื›ื“ื™ ืœืฉืžื•ืจ ืขืœ ื”ื‘ื˜ื™ื—ื•ืช ืฆืจื™ืš ืงื•ื“ื ื›ืœ ืœื”ื‘ื™ืŸ ืื™ืš ื”ืžืคืชื—ื™ื ืื•ืกืคื™ื ื•ืžืฉืชืคื™ื ืืช ื”ื ืชื•ื ื™ื ืฉืœืš. ื ื•ื”ืœื™ ืคืจื˜ื™ื•ืช ื”ื ืชื•ื ื™ื ื•ืื‘ื˜ื—ืช ื”ื ืชื•ื ื™ื ืขืฉื•ื™ื™ื ืœื”ืฉืชื ื•ืช ื‘ื”ืชืื ืœืฉื™ืžื•ืฉ, ืœืื–ื•ืจ ื•ืœื’ื™ืœ ื”ืžืฉืชืžืฉ. ื”ืžืคืชื— ืกื™ืคืง ืืช ื”ืžื™ื“ืข ื”ื–ื” ื•ื”ื•ื ืขืฉื•ื™ ืœืขื“ื›ืŸ ืื•ืชื• ืžื“ื™ ืคืขื.
ื”ืืคืœื™ืงืฆื™ื” ื”ื–ืืช ืขืฉื•ื™ื” ืœืฉืชืฃ ืืช ืกื•ื’ื™ ื”ื ืชื•ื ื™ื ื”ืืœื” ืขื ืฆื“ื“ื™ื ืฉืœื™ืฉื™ื™ื
ืžื–ื”ื” ื”ืžื›ืฉื™ืจ ืื• ืžื–ื”ื™ื ืื—ืจื™ื
ื”ืืคืœื™ืงืฆื™ื” ื”ื–ืืช ืขืฉื•ื™ื” ืœืืกื•ืฃ ืืช ืกื•ื’ื™ ื”ื ืชื•ื ื™ื ื”ืืœื”
ืคืจื˜ื™ื ืื™ืฉื™ื™ื
ื”ื ืชื•ื ื™ื ืžื•ืฆืคื ื™ื ื‘ื–ืžืŸ ื”ื”ืขื‘ืจื”
ืื™ ืืคืฉืจ ืœืžื—ื•ืง ืืช ื”ื ืชื•ื ื™ื

ื“ื™ืจื•ื’ื™ื ื•ื‘ื™ืงื•ืจื•ืช

4.4
645 ื‘ื™ืงื•ืจื•ืช

ืžื” ื—ื“ืฉ?

Minor Bug Fixes

ืชืžื™ื›ื” ื‘ืืคืœื™ืงืฆื™ื”

ืžื™ื“ืข ืขืœ ืžืคืชื—ื™ ื”ืืคืœื™ืงืฆื™ื”
RAJIL THANKARAJU
contact@softecks.in
16,Ayya Avenue, Shanmugavel Nagar,Kathakinaru Madurai, Tamil Nadu 625107 India

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