1. AIM To learn about different lan technologies and to design a network based on these lan technologies and to simulate these networks by a simulation tool know as opnet and by putting different loads on these networks and to study the performance of these networks. 2. Overview Local area networks (LAN) are a group of devices which communicate with each other in a small geographical area like within a room or within a building. There are different topologies in LAN which are designed accordi...
It is a java library to provide local spell checking service. Suggester Spell Check is a 100% pure Java library to provide local spell checking service. And it is absolutely free for us to use with already pre-compiled dictionaries. Suggester Spell Check uses Basic Suggester Engine as a spellchecker. Suggester spell check providing recommendations for unknown words in user query for local search systems. System administrator can create a list of preferred words and assign higher weight to suc...
This project proposes an improved version of lifting based 3-D Discrete Wavelet Transform VLSI architecture, which is a powerful image compression algorithm. This architecture based on lifting scheme greatly minimizes the storage requirement compared to previous architectures. The main features of this scheme are breaking up highpass and lowpass filters into a sequence of triangular matrices and convert the filter implementation into banded matrix multiplications. The proposed architecture ha...
The users awareness of their privacy made anonymity to get higher attention. The users can enjoy the pleasure of the network services without being tracked by anonymity. Although many anonymity related issues have been widely studied in payment based systems like peer-to-peer (P2P) systems and e-cash systems, a more effort has been dedicated to a Wireless Mesh Networks (WMNs). At the same time, Conditional anonymity is required for the network authority so the any misbehaving entities can be ...
The following figure illustrates the architecture of windows operating system. The later releases of windows like vista also have the similar structure. Keeping in view of the flexibility the operating system structure has been designed. It design also addresses the support on variety of different hardware platforms such as Intel x86 and AMD64 architectures.. The windows server operating system also supports the Intel IA64 (Itanium). Fig (a) Windows and Windows Vista Architecture [1] As windo...
Memory stores, instructions and data. Memory is of two types, primary memory and secondary memory. Instruction or data given by input devices is first getting stored in the primary memory. Further user saves processed (executed) data in the secondary memory. Primary memory is temporary and secondary memory is permanent. Primary memory is the main memory of the computer system. It is faster than secondary memory. It directly communicates with CPU. 3.2 Memory Unit Computer uses several types of...
Relational database contains data which is inter related to each other, which is managed by itself and these are stored in different structured tables. The terminology used for data arrangement in various forms is indexes, views, sequences, tables. E.F CODD was mentioned as parent for the relational database. The concept is being changed and edited for better processing of related data in a perfect manner. We can have look over the below mentioned diagram which is mentioned as perfect relatio...
SIM is a smartcard that is used in mobile phone. It stores a secret key. Customers are authenticated on mobile network based on this secret key. Customer phone bills are generated based on this key. From the point of view of security, SIM has resistant to any type of tamper. Tamper resistant is considered to prevent secret key from being hacked. It is also believed that tamper resistant will keep secret key safe even if hacker has access to SIM. Cryptographic protocols are used for authentica...
PART - 1 DIRECT MANIPULATION PRINCIPLES Three Major Principles of Direct Manipulation Advantages of Direct Manipulation Potential Problems of Direct Manipulation PART - 2 MULTI-TOUCH INTERACTION Two Hardware Technologies which detect multi-finger action Microsoft Surface and Microsoft Touch wall are some of the two hardware technologies which detect multi-finger action. Â Â Â Â Â Â Â Â Â Â MICROSOFT SURFACEÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â MICROSOFT TOUCH WALL Microsoft ...
Database technology and the Structured Query Language (SQL) have grown enormously in recent years. This paper presents results of the research on the historical perspective of the development of SQL and its continuing development. Applications from different domains have different requirements for using database technology and SQL. This paper also presents an overview on definition of the Standard Query Language, and highlighted the several benefits and produce literature on risks of adopting...
