Connecting and Accessing Data through ADO.NETWritten by Pawan Bangar
Microsoft's ADO.NET technology offers a solution to many of problems associated with data access.Accessing data has become a major programming task for modern software programming, both for standardalone applications and for web based applications. Microsoft's ADO.NET technology offers a solution to many of problems associated with data access. ADO.NET is an improvement to Microsoft ActiveX Data Objects (ADO). It is a standards-based programming model for creating distributed data-sharing applications. ADO.NET offers several advantages over previous versions of ADO and over other data access components. These benefits fall into following categories: Interoperability Maintainability Programmability Performance. Connecting to a database: For performing and operation we need to connect to a database. This is done automatically through ADO connection, of which code is associated with VS.net Programming environment.
| | Computer Network InstallationWritten by Adrian Griffiths
Computer network installation can be daunting but with a few guidelines you can install a good network at your home or office. Networking allows computers to share peripherals, and allows one computer to backup data of another. Also networks can enable a single computer to act as an Internet access point for entire network without inconvenience of fitting a modem and telephone extension for each computer.Planning This involves defining business requirements and growth plans to build a framework for connecting computers and other equipment in organization. Good network planning eases process of a suitable network installation. Here users need to consider usage requirements and assess who will manage network. Usage, maintenance, expansion and security issues also need consideration. Hardware requirements Once planning has been done, next stage involves understanding what hardware will be required and what hardware your network will support. These can include back-up devices, uninterruptible power supplies, network printers, etc. Once this is determined you need to understand how many network points will be required. Hubs and switches should have sufficient ports for various connections. Also there should be enough scope for growth and expansion in future. Network design Here various aspects like kind of topology, network operating system, right network interface cards and cabling needs to be considered. If network is small, a basic topology like ring, bus, mesh or star may be used. But if network is complex, a hybrid of two or more technologies may need to be implemented. The location of network cables, various devices, hubs, switches, servers, printers, firewalls, routers and modems needs consideration. Building or leasing regulations that may affect cabling also need to be kept in mind. Security issues, both within organization and on Internet also need consideration.
|
