NETWORKS FULL FORMS

TCP/IP – Transmission Control Protocol /

                 Internet Protocol

LAN –      Local Area Network

MAN –     Metropolitan Area Network

WAN –     Wide Area Network

Modem – Modulation(tor)/Demodulation(tor)

URL –       Uniform Resource Location

FTP –       File Transfer Protocol

HTTP –    Hyper Text Transfer Protocol

PPP –       Point to Point Protocol

GSM –     Global System for Mobile

CDMA –  Code Division Multiple Access

WLL(WiLL)–Wireless in Local Loop

SMS –      Short Message Service

WWW –   World Wide Web

HTML –   Hyper Text Markup Language

XML –      eXtensible Markup Language

NFS –       Network File System

ARPANET – Advanced Research

                       Projects Agency

NSFnet – National Science Foundation

NIU –       Network Interface Unit

NIC -        Network Interface Card

TAP –      Terminal Access Point

        (NIU = NIC = TAP)

VGM –     Voice Grade Medium

DGM –      Data Grade Medium

STP –        Shielded Twisted Pair

UTP –       Unshielded Twisted Pair

LED –       Light Emitting Diode

LD –         Laser Diode

Kbps –      Kilo bits Per Second

KBps –      Kilo Bytes Per Second

Mbps  -     Mega Bits  Per Second

MBps –     Mega Bytes Per Second

Gbps  -      Giga Bits Per Second

GBps –      Giga Bytes Per Second

OFC –       Optic Fiber Cable

                  Fiber Optic Cable

KHz –        Kilo Hertz

MHz –       Mega Hertz

GHz –        Giga Hertz

THz –        Tera Hertz

Bps –         Bytes Per Second

bps   -         Bits Per Second

PDA –        Personal Digital Assistants

P-P   -         Point to Point

AM –         Amplitude Modulation

FM -           Frequency Modulation

PM –          Phase Modulation

A/F –         Audio Frequency

(Txd – Transmit       Rxd – Receive

RTS – Request to Send

CD – Carrier Detect

DSR – Data Set Ready

CTS – Clear to Send

DTR – Data Terminal Ready)

RJ45 –        Registered Jack – 45

BNC –        Bayone – Neill – Concelman

AUI –         Attachment Unit Interface

SNA –        Systems Network Architecture

VFIR –      Very Fast Infrared

URI –        Uniform Resource Identifier

URN –       Uniform Resource Name

MIME –     Mail and Multipurpose Internet

                   Mail Extensions

POP –        Post Office Protocol

SMTP –     Simple Mail Transfer Protocol

NNTP –     Network News Transfer Protocol

HTTP –      Hyper Text Transfer Protocol

NTP –         Network Time Protocol

IMAP –       Internet Mail Transfer Protocol

SLIP –        Serial Line Internet Protocol

IPCP –        IP Control Protocol

NCP –        Network Control Protocol

LCP –        Link Control Protocol

PC –          Personal Computer

ISP –         Internet Service Provider

SIM –       Subscriber Identity Module

TDMA –  Time Division Multiple Access

TDM –      Time Division Multiplexing

IDEN –      Integrated Digital Enhanced

                  Network

WCDMA –Wideband CDMA

PSTN –      Public Switched Telephone

                    Network

3G –            Third Generation

UMTS –      Universal Mobile

                    Telecommunications System /

                    Universal Mobile Telephone

                     System

EDGE –      Enhanced Data rates for Global

                   Evolution

SMSC –      Short Message Service Center

HLR –        Home Location Register

Email –      Electronic Mail

Fax –          Fascimile

VSNL –     Videsh Sanchar Nigam Limited

DNS –        Domain Name Server

DHTML–   Dynamic Hyper Text Markup   

                   Language

DECnet–    Digital’s family of

                   communication protocols

IE –             Internet Explorer

Boolean Algebra Laws

(1)Properties of 0 and 1:

     0 + X = X, 1 + X = 1, 0.X = 0, 1.X = X

(2) Idempotence Law:(a)X +X = X(b)X.X = X

(3) Involution Law:          (A')' = A

(4)ComplementaryLaw:(a)X +X'=1(b)X.X'=0

(5)Commutative Law: (a) X+Y =Y+X  

                                     (b)X.Y=Y.X

(6) Associative Law:  (a)X + (Y+Z)=(X+Y)+Z

                                   (b)X.(Y.Z)=(X.Y).Z

(7)Distributive Law:  (a) X(Y+Z)=XY+XZ

                                   (b) X+YZ=(X+Y)(X+Z)

(8) Absorption Law:   (a) X+XY=X 

                                    (b)X(X+Y)+X

(9) Third distributive Law:  X+X'Y=X+Y

(10)Demorgan’s Theorems (1) (X + Y)'=X'Y'

                                             (2) (XY)'=X' + Y'

All the best for ur comp board exams....

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