BCS Preparation: কম্পিউটারের মধ্যে কমন আসার মত ৫০০টি তথ্য (পর্ব ১২)

09 Feb 2021

When computers are installed very near to each other is the Local Area Network;

When all the computers are installed a long way distance or among the countries is the Wide Area Network;

Wired and Wireless are the medium for making internet or network;

The structure that creates network among the computers is Topology;

The member of the Local Area Network is – Bus Topology, Ring Topology, Star Topology, Completely connected Topology, Delta Topology, Hybrid Topology;

The function of Delta Bus among the different computers- Delta transfer;

In Bus Topology does not have Host computer;

In Star Topology does have Host computer;

In Star Topology Host computer plays role of bridge with the terminal;

The name of extended form of Star Topology is- Tree Topology;

The Star Topology does not allow to transfer data directly from computer to computer;

Hybrid Topology consist of Ring + Bus + completely connected Topology;

Internet was popularly known to all and got its recognition in 1994;

The different servers of different cities come under satellite at the beginning of 90’s;

Each and every document of Internet purpose must have their won Address;

Uniform Resource Location (URL) is the address of document in internet;

There are 3 parts in an internet address;

E-mail ঠিকানা দুইভাগে বিভক্ত;

E-mail ঠিকানায় @ চিহ্ন অবশ্যই থাকে;

E-mail ঠিকানার @ চিহ্নের পরের অংশ- Host domain name;