DBMS Three-Schema Architecture and Data Independence
Filed Under Architecture, Data Model, Databases | Posted on August 5, 2009
WHAT IS DBMS ? – To be able to carry out operations like insertion, deletion and retrieval, the database needs to be managed by a substantial piece of software; this software is usually called a Database Management System(DBMS). – A DBMS is usually a very large software package that enables many different tasks including the [...]
Quick Tech Tip : Metropolitan Area Networks – MANs
Filed Under Architecture, Network | Posted on July 12, 2009
A metropolitan area network, or MAN is basically a bigger version of LAN. MAN is a computer networks usually spanning a campus or a city, which typically connect a few local area networks using high speed backbone technologies. A MAN supports both data and voice. A MAN just has one or two cables and does [...]
Quick Tech Explanation: Local Area Networks – LANs
Filed Under Architecture, Network, Technical, Tips | Posted on July 12, 2009
Local Area networks, generally called LANs, are privately owned networks within a single building or campus of up to a few kilometers in size. Most local area networks are built with relatively inexpensive hardware such as Ethernet cables, network adapters, and hubs. Wireless LAN and other more advanced LAN hardware options also exist as a [...]
Quick Tech Tip – FDDI – Fiber distributed data interface
Filed Under Architecture, Network | Posted on July 9, 2009
Fiber distributed data interface (FDDI) provides a standard for data transmission in a local area network that can extend in range up to 200 kilometers (124 miles). FDDI is a token-passing, fiber ring, network. The fiber optic media can be multimode fiber and can be as large as 100 kilometers – with no more than [...]
