Tek Helpdesk

you can read this in your language .click right side on translate button and  select your language.    TOP 5 BEST FREE ANTIVIRUSES  FRIENDS, AAJ HUM SAB KE PASS LAPTOP YA COMPUTER HAI  JISKI HUM UPAR SE DEKHBHAL BHUT ACCHE SE KRTE HAI , APNE COMPUTER/LAPTOP KO CLEAN RAKHTE HAI  LEKIN HME YE BHI PTA HONA CHAHIYE KI COMPUTERS/LAPTOP KO UPARI CLEANING KE SATH USKE ANDAR KI BHI CLEANING KI ZAROORAT HOTI HAI . JO LOG COMPUTERS KE BARE ME JANTE HAI ACCHE SE UNHE TO SB PTA HOTA HAI KI APNE COMPUTER/LAPTOP KO KAISE RAKHNA HAI LEKIN JO ISKE BARE ME JYADA NHI JANTE  WO APNE COMPUTER/LAPTOP KO BAHAR SE TO BHUT ACCHE SE RAKHTE HAI LEKIN UAKE ANDAR KE VIRUSES KO NHI JAN PATE HAI JIS SE UNKE COMPUTERS/LAPTOP JALDI KHARAB HO JATE HAI .                                                             ...

"you can read our article in your language, click upper left side on translate button" HELLO FRIENDS, WE ARE GOING TO TELL YOU HOW TO MAKE BOOTABLE PENDRIVE   WITHOUT ANY HELP OF COMMAND . NOW-A-DAYS MANY NEWER WINDOWS OPERATING SYSTEM HAVE COME AND THEY ALL ARE VERY COSTLY, WHICH EVERYONE CANNOT BUY.                                                                                          TODAY'S LATEST WINDOWS IS WINDOW 10 WHICH PRICE IS AROUND RS 5000 , SO PEOPLE CANNOT EVEN USE THE LATEST WINDOWS . THESE WINDOWS CD\DVD DRIVES ARE EXPENSIVE. APART FROM THIS , LAPTOPS  TOO COME VERY SLIM AND DO NOT HAVE A CD\DVD DRIVER , SO HOW WILL YOU INSTALL WINDOWS ? HERE ONLY THE BOOTABLE PENDRIVE HELPS US . SO LET'S KNOW HOW TO MAKE BOOTABLE PENDRIVE ...

HI FRIENDS , IN THIS POST WE WILL KNOW ABOUT THE TOP 5 BEST C/C++ PROGRAMMING SOFTWARES OR IDE WITH COMPILER . IF YOU ARE A PROGRAMMER AND YOU LIKE PROGRAMMING THEN YOU MUST ADDRESS ABOUT THESE SOFTWARES. C AND C++ ARE THOSE UNIQUE LANGUAGES WHICH EVERY PROGRAMMER SHOULD KNOW , BECAUSE THE LANGUAGES FORMS THE BASE OF  POPULAR PROGRAMMING LANGUAGES LIKE  PYTHON  ,  PHP , PERL ,  JAVA , C#  AND MANY OTHERS . SO IF YOU ARE A C OR C++ PROGRAMMER OR EVEN A BEGINNER , WHO HAS TO GREAT WILL TO LEARN BOTH OF THESE LANGUAGES THEN HERE IN THIS POST I AM ROUNDING OUT SOME OF IMPRESSIVE IDEs FOR YOU . 5 BEST C/C++IDE COMPILERS FOR WINDOW , LINUX AND MAC SO LET'S START THE LIST OF BEST IDE FOR C AND C++ LANGUAGE 1.)ECLIPSE:-                      ECLIPSE IS THE ONE OF THE MOST POPULAR AND POWERFUL IDEs FOR C/C++ WHICH OFFERS OPEN SOURCE UTILITY AND FUNCTIONALLY FOR C AND C++ PROGRAMMERS . NEW USER...

WINDOWS  IS GUI BASED OPERATING SYSTEM . ITS  USER FRIENDLY AND MOST USABLE OPERATING SYSTEM IN THE WORLD . LET'S COME TO KNOW THE PROCESS OF INSTALLING  WINDOWS  O/S. STEP-1              FIRST WE NEED ANY BOOTABLE DEVICE , IT CAN BE CD/DVD OR USB DRIVE  OF WINDOW WHICH YOU WANT TO INSTALL . THEN GO TO YOUR SYSTEM'S BIOS SETTING AND CHOOSE YOUR CORRECT BOOT DEVICE . STEP -2               AFTER CHOOSING CORRECT BOOT DEVICE , RESTART YOUR COMPUTER . STEP-3             NOW CLICK ON "INSTALL NOW" OPTION AND ACCEPT TERMS AND CONDITIONS OF WINDOWS AND THEN CLICK NEXT  . Also Read: install-Windows-7-(Beginners) STEP-3              NOW YOU HAVE TO GO WITH "CUSTOM WINDOW INSTALLATION" OPTION . STEP-4              THIS STEP IS VERY IMPORTANT BECAUSE IN THIS STEP YOU...

DO YOU KNOW ? WINDOWS IS THE WORLD'S MOST POPULAR OPERATING SYSTEM . ABOUT 75% COMPUTER'S ARE WORK ON WINDOWS OPERATING SYSTEM ALL OVER THE WORLD . FRIENDS WINDOWS IS MOST POPULAR OPERATING SYSTEM THAN OTHER OPERATING SYSTEMS BECAUSE IT'S MORE USER FRIENDLY AND IT IS VERY EASY TO USE . WINDOWS ARE MULTITASKING OPERATING SYSTEM BECAUSE YOU CAN ACCESS OR PERFORM MORE THAN ONE TASK AT A TIME . for example:- if you are work on MS OFFICE and you want to listen music so , you can listen with doing work . you can play audio song  and video song together. INTRODUCTION OF WINDOWS WINDOWS IS AN OPERATING SYSTEM DESIGNED BY MICROSOFT .THE OPERATING SYSTEM IS WHAT ALLOWS YOU TO USE A COMPUTER . WINDOWS COMES PRELOADED ON MOST NEW PERSONAL COMPUTERS(PCs) . WHICH HELPS TO  MAKE IT THE MOST POPULAR  OPERATING SYSTEM INN THE WORLD . MICROSOFT RELEASE THE  FIRST VERSION OF WINDOWS IN THE MID 1980's . THERE HAVE BEEN MANY VERSION OF WINDOWS LIKE- WINDOWS XP(200...

WHAT IS COMPILER ? A COMPILER IS A SOFTWARE WHICH CONVERT HIGH LEVEL PROGRAMMING LANGUAGE INTO A LOW LEVEL OBJECT CODE(BINARY CODE) IN MACHINE LANGUAGE , WHICH CAN BE UNDERSTOOD BY THE PROCESSOR . THE PROCESS OF CONVERTING HIGH LEVEL LANGUAGE INTO MACHINE LANGUAGE IS CALLED COMPILATION . PHASES OF COMPILER THERE ARE SIX PHASES OF COMPILER 1.) LEXICAL ANALYSIS:-                                             LEXICAL ANALYSIS IS A PROCESS IN WHICH COMPILER CHECK STREAM OF CHARACTER AND CONVERT INTO MEANINGFUL LEXEMES . IN OTHER WORDS IT READS THE PROGRAM AND CONVERT IT INTO TOKENS . TOKENS ARE DEFINED BY REGULAR EXPRESSION WHICH ARE UNDERSTOOD BY LEXICAL ANALYZER . 2.)SYNTAX ANALYSIS:-                                               SYNTAX ANALYS...

THE PROCESS OF ALLOCATING THE MEMORY AT RUNTIME IS CALLED DYNAMIC MEMORY ALLOCATION . LIBRARY ROUTIEN KNOWN AS MEMORY MANAGEMENT FUNCTION ARE USED FOR ALLOCATING AND FREEING THE MEMORY DURING EXECUTION OF PROGRAM . THESE FUNCTINS IS DEFINE IN 'stdlib.h' HEADER FILE . ALLOCATING BLOCK OF MEMORY - 1.) Malloc():-                 MALLOC()  IS A FUNCTION WHICH IS USED FOR ALLOCATING THE BLOCK OF MEMORY AT RUNTIME . THIS FUNCTION RESERVES BLOCK OF MEMORY AT  GIVEN SIZE AND RETURN A POINTER AS TYPE OF VOID . IF IT IS FAIL TO ALLOCATE ENOUGH SPACE AS SPECIFIED , IT RETURNS NULL POINTER .  Syntax- void*malloc(byte-size) . 2.) Calloc():-              Calloc() IS A FUNCTION WHICH IS USED FOR ALLOCATING AT RUNTIME  . CALLOC() FUNCTION IS USED FOR ALLOCATING MEMORY TO DERIVED DATA TYPE SUCH AS ARRAYS AND STRUCTURE . IF IT FAILS TO ALLOCATE ENOUGH SPACE AS SPECIFIED IT RETURNS NULL POINTER . ...

C TOKENS:-                       TOKENS ARE THE GROUP OF CHARACTER THAT ARE USED FOR REPRESENTING AN IDENTITY . IN C LANGUAGE FOLLOWING TYPES OF TOKENS ARE USED. IDENTIFIER KEYWORDS  CONSTANT  OPERATORS  i.) IDENTIFIER:-                               IDENTIFIER ARE THE NAMES THAT ARE USED FOR IDENTIFYING AN ENTITIES .                    IDENTIFIER ARE THE NAMES WHICH ARE GIVEN TO VARIOUS PROGRAMS ELEMENTS SUCH AS VARIABLES , FUNCTIONS AND ARRAYS . IDENTIFIER MUST BE UNIQUE . ALSO REMEMBER , IDENTIFIER NAME MUST BE DIFFERENT FROM THE KEYWORDS . YOU CANNOT USE (int) IS A KEYWORD . SOME MAIN POINTS OF IDENTIFIER ARE:- * IDENTIFIER CONSIST OF BOTH LETTERS AND DIGITS . * AN IDENTIFIER CONSIST OF ALPHABETS , DIGITS AND UNDERSCORE * IT MUST NOT START WITH DIGITS . * C IS CASE...

IN OUR PREVIOUS POST WE HAVE DISCUSSED ABOUT  PRIMARY DATA TYPE AND NOW , WE DISCUSS ABOUT SECONDARY DATA TYPE . SECONDARY DATA TYPE:- ARRAY POINTER  STRUCTURE  UNION ENUM 1.) ARRAY:-                      ARRAY IS A COLLECTION OF SIMILAR ELEMENTS . THESE ELEMENTS COULD BE ALL int OR ALL floats OR ALL char ETC . AN ARRAY IS A FIXED SIZE , SEQUENCE , COLLECTION , OF ELEMENTS OF THE SAME DATA TYPES . THE ARRAY OF CHARACTERS CALLED STRING . THE ARRAY OF INTEGER & FLOAT CALLED  ARRAY . ARRAY IS ALSO KNOWN AS SUBSCRIPTED VARIABLE . ARRAY ELEMENTS ARE ALWAYS STORE IN CONTEGIOUS MEMORY LOCATION  . SOME EXAMPLES WHERE THE CONCEPT OF ARRAY- i.) LIST OF EMPLOYEE IN AN ORGANISATION ii.) LIST OF TEMPERATURE RECORD IN A DAY , OR A MONTH , OR A YEAR . iii.) LIST OF PRODUCT AND THEIR COST . *DECLARATION OD 1-D(DIMENTIONAL) ARRAY→ int a[10]; char a[30]; float a[10]; STORI...

DATA TYPES IS VERY IMPORTANT PART OF C LANGUAGE OR ANY OTHER LANGUAGE . WITHOUT USING DATA TYPE YOU CANNOT UNDERSTAND THE TYPE OF ANY GIVEN DATA . DATA TYPE HELPS TO UNDERSTAND THE DATA WHICH YOU ARE INPUT FROM THE KEYBOARD , IT IS NUMERIC TYPE , CHARACTER TYPE OR DECIMAL TYPE . * DATA TYPES:-                             DIFFERENT TYPES OF DATA ARE COULD BE USED IN ANY LANGUAGE , IS CALLED ITS DATA TYPE . for example:-  name will always be alphabetic data , age is numeric data type , etc . HERE WE SHALL DISCUSS ABOUT VARIOUS TYPES OF DATA TYPES WHICH ARE USING IN C LANGUAGE . IN THIS POST WE SHALL DISCUSS ABOUT ONLY PRIMARY DATA TYPES . 1.) PRIMARY or PRIMITIVE DATA TYPES:-                                                              ...

CALLING FUNCTION:-                                          IN C LANGUAGE THERE IS TWO TYPES OF CALLING FUNCTIONS . CALL BY VALUE CALL BY REFERENCE * CALL BY VALUE:-                                       IN CALL BY VALUE , ORIGINAL VALUE CAN NOT BE CHANGED OR MODIFIED. IN CALL BY VALUE, WHEN THE VALUE PASSED BY THE FUNCTION , IT IS LOCALLY STORE IN THE FUNCTION PARAMETER IN STACK MEMORY LOCATION. IF YOU CHANGE THE VALUE OF FUNCTION PARAMETER , THE CHANGES MADE TO BE IN LOCAL MEMORY IN CURRENT FUNCTION ONLY BUT IT NOT CHANGE THE VALUE OF VARIABLE INSIDE THE CALLER METHOD SUCH AS MAIN FUNCTION . SOME IMPORTANT POINTS OF CALL BY VALUE IS : 1.) THIS METHOD COPY THE ORIGINAL VALUE INTO HE FUNCTION AS AN ARGUMENT . 2.) CHANGES MADE TO THE PARAMETER INSIDE THE FUN...

IN THIS POST WE SHALL DISCUSS ABOUT FUNCTIONS. WHAT IS FUNCTION? FUNCTION IS A TYPE OF BLOCK IN WHICH WE WRITE  SOME TASK  FOR PERFORM . WE CAN SAY , A FUNCTION IS A BLOCK OF CODE  THAT PERFORMS A SPECIFIC TASK . SUPPOSE YOU WANT TO ADDITION AND SUBTRACTION OF TWO VALUES IN SAME PROGRAM . THEN , WHAT YOU DO ? YOU CAN CREATE TWO FUNCTIONS TO SOLVE THIS  PROBLEM . i.) CREATE  AN ADDITION FUNCTION . ii.) CREATE A SUBTRACTION FUNCTION . IN THIS WAY , YOU CAN DIVIDE COMPLEX PROBLEMS INTO SMALL COMPONENT TO MAKE PROGRAM EASY TO UNDERSTAND AND USE . *ADVANTAGES OF FUNCTION:- i.) A SINGLE LONG PROGRAM GETS DIVIDED INTO SMALL PROGRAMMES  . ii.) IF FUNCTION IS BEING USED THEN TO PERFORM THE SOME FUNCTION AGAIN  WITHIN THE PROGRAM , THE CODE NEED NOT BE WRITTEN AGAIN . ONLY ONE  LINE OF THE CALLING FUNCTION CAN BE WRITTEN . iii.) SINCE FUNCTION WRITTEN IN ONE PROGRAM CAN BE USED IN ANOTHER   PROGRAM . THERE IS TWO THINGS...

#. IN THIS POST WE SHALL DISCUSS ABOUT  OPERATORS . WHAT ARE OPERATORS ? OPERATORS , WHICH ARE USED TO COMBINE TWO OPERANDS .  for example:- A+B ,A-B , A*B , A/B ETC HERE , A and B ARE OPERANDS AND SIGN OF ADDITION(+) , SUBTRACTION(-) , MULTIPLICATION(*) AND DIVISION(/) OPERATOR . OPERATORS ARE FOLLOWING TYPES:- ARITHMETIC OPERATOR RELATIONAL OPERATOR  LOGICAL OPERATOR ARITHMETIC OPERATOR :- ADDITION                      + SUBTRACTION              - MULTIPLICATION         * DIVISION                         / MODULUS                      % RELATIONAL OPERATOR:- LESS THAN                                ...