C/C++ Programming C is a middle-level programming language that was developed in the mid-1970s. It was originally used for writing UNIX programs but now is used to write applications for nearly every available platform. Topics Covered:- The Basics of C C Operators Control Structures Storing Variables Arrays and Pointers C Preprocessors Strings  Inheritances Polymorphism Namespace, Exception Handling & STL And Many More...

Global System For Mobile Communications GSM is used not only for communication but also for call management in telecommunication field. It is used as a wireless communication which is suitable for mobile communication, in DATA Card for wireless internet connection. GSM has different types of speed, which are divided as a 1G, 2G, 3G & 4G. A large amount of data can be transferred through the GSM due to its TDMA & FDMA access.  Topics Covered:- Introduction And History Gsm Working - Switching System Of Gsm Architecture Gsm Architecture - Base Station Subsystem Gsm Technology What Is Sim? Teleservices Or Telephony Services Gsm - Security And Encryption And Many More..

UNIX and LINUX Internals  Linux is a free and open source operating system which is similar to UNIX.  Linux is developed as open source software means that the source code for an application is freely distributed along with the application. Linux's functionality, adaptability and robustness, has made it the main alternative for proprietary UNIX and Microsoft operating systems. Topics Covered:- introduction and history inter process communication linux file system multiprocessing