Appin Technology ..Lab bbsr

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

posted by Abinash