Tag: information technology

There is a growing tendency for researchers to administer questionnaires through more than one medium. Thus they might send out a printed copy of the questionnaire by post to everyone in the sample, but explain in the covering letter that the survey can also be found online, for example at a web site. This allows recipients of the letter to choose whether to respond by post or online, and so it has the potential to improve the study's response rate. Meanwhile, there is growing evidence that using online questionnaires alone produces a lower response rate than postal surveys. It seems that Internet users have become quite sophisticated in their attitudes to unsolicited emails. Spam filters and security software may inadvertently trash some messages, particularly those with attachments. 

High bandwidth is available for transmission in LANs as compared to WANs

Internet is a set of rules to communicate between computers

LAN Experiences fewer data transmission errors, while WAN has more data transmission errors as compared to LAN

Every computer connected on the network should have an unique address, and this address is known as IP address

Through the internet, we can remotely login a device easily, transfer files and mail someone but word processing doesn't require internet facility it is already there as a application software.

In LAN, If there is a need to set-up a couple of extra devices on the network, it is not very expensive to do that and hence cost associated to setup a LAN is less

For WANs since networks in remote areas have to be connected the set-up costs are higher.