International standard organization (ISO) provide us the model known as Open systems interconnection. This model has seven layers. Each layer has its own properties, functionalities and protocols as pre-defined by the organization. 1) Physical Layer 2) Data Link Layer 3) Network Layer 4) Transport Layer 5) Session Layer 6) Presentation Layer 7) Application Layer 1) … Read more
What is Difference between Data and signal? There is difference between Data and signal & the important points are given below:- # Data Signal 1 The Entities which convey meaning within computer or computer system. These are the electromagnetic or electric which used to first encode & transmit data. 2 It is usually referred as … Read more
In early nineteens 19’s, only the devices of same company could connect to each other. The devices of different companies could not be connected to each other (for example Microsoft devices could connect to other Microsoft devices but not with devices of other companies e.g. IBM couldn’t connect to Microsoft devices). This was a problem … Read more
Network is the combination of two or more devices (computers, mobiles or laptops) which are connected with one another to share information and data. The most common example of network is THE INTERNET. Network is established by following a certain number of protocols (RULES). To connect to any network everyone has to follow those protocols. … Read more
It is the system of interrelated computers and hardware items or peripherals such as printers is known as computer network. Such connected computer item having computer assists information distribute among them. Computers may attach to each other by both wired and wireless media. Classification of Computer Networks Computer networks are classified based on various factors. … Read more