THE benefit of Ipad. lol

 

do u think mobile Computer is good?

UNIQUE MACBOOK!!!!!

 

U guess, how long time to type "I Love You" 

Network Security and Management

 Introduction

Networks and distributed processing systems are of critical and growing importance in enterprises of all sorts. The trend is toward larger, more complex network supporting more applications and more users. As these networks grown in scale, two facts become evident:

The network and its associated resources and distributed applications become indispensable to the organization.

More things can go wrong, disabling the network or a portion of the network or degrading performance to an unacceptable level.

A large network cannot be put together and managed by human effort alone; the complexity of such a system dictates the use of automated network management tools. The urgency of the need for such tools increased, and the difficulty of supplying such tools is also increased, if the network includes equipment from multiple vendors. Moreover, the increasing decentralization of network services as exemplified by the increasing importance of workstations and client/server computing makes coherent and coordinated network management increasingly difficult. In such complex information systems, many significant network assets are dispersed far from network management personnel.

ATM Technology Fundamentals

What is ATM?

Asynchronous Transfer Mode (ATM) is a technology designed for the high-speed transfer of voice, video, and data through public and private networks using cell relay technology. ATM is an International Telecommunication Union Telecommunication Standardization Sector (ITU-T) standard. Ongoing work on ATM standards is being done primarily by the ATM Forum, which was jointly founded by Cisco Systems, NET/ADAPTIVE, Northern Telecom, and Sprint in 1991.

A cell switching and multiplexing technology, ATM combines the benefits of circuit switching (constant transmission delay, guaranteed capacity) with those of packet switching (flexibility, efficiency for intermittent traffic). To achieve these benefits, ATM uses the following features:

•Fixed-size cells, permitting more efficient switching in hardware than is possible with variable-length packets

•Connection-oriented service, permitting routing of cells through the ATM network over virtual connections, sometimes called virtual circuits, using simple connection identifiers

•Asynchronous multiplexing, permitting efficient use of bandwidth and interleaving of data of varying priority and size

The combination of these features allows ATM to provide different categories of service for different data requirements and to establish a service contract at the time a connection is set up. This means that a virtual connection of a given service category can be guaranteed a certain bandwidth, as well as other traffic parameters, for the life of the connection.

Security - Anti Virus

Kaspersky has today released the Beta build of its upcoming security suite Kaspersky Internet Security 2011 & Kaspersky Antivirus 2011 (version 11.0.0.187). The KIS 2011 and KAV 2011 build features a completely new GUI, Windows Sidebar gadget, and a range of other new features.