The Internet
- Created by: cassiea777
- Created on: 01-02-16 19:45
View mindmap
- The Internet
- " a group of networks joined together with smaller networks"
- Boolean Searches - saves time and narrows down searches. AND, OR, NOT. Exact searches with the use of ". a web crawler automatically browses webpages in a systematic manner to produce up to date information
- Bandwidth - a measure of the speed at which data can be transferred along a communication channel
- Online Databases - uses a network rather than a standalone machine so all can access the same database which avoids data duplication as data is constantly modified so it is always up t date
- Dialup Modem - slow connection to the internet with limited uses.
- The modem changes the digital signal into sounds and then back to digital at the other end of the line
- + Only pay for the internet you actually use
- - Slow - Cant use the phone at the same time
- The modem changes the digital signal into sounds and then back to digital at the other end of the line
- Broadband - fast connection to the internet with fast downloads
- + fast downloads +no time wasted waiting + cheap phone calls +doesn't tie up phone lines
- - can be expensive -might not be available in some areas
- Mobile Access - devices that offer mobile access to the internet (phones, laptops)
- +Can work more effectively +can make fast changes to plans +possible to work from anywhere
- -Expensive -never feel like you're away from your phone -security problems
- File Transfer Protocol - a standard internet protocol providing a simple way of transferring files between computers on the internet.
- Used by companies to distribute information to their customers. IT CAN TRANSFER LARGE FILES
- Electronic Data Interchange - companies can automatically exchange data
- Used by large retailers to order and pay for goods - you can access info by URL, Hyperlink, Search Engine
- E-commerce - the use of the internet to purchase goods.
- = trained staff =secure method of payment with encryption =catalogue of stock =database of customer orders =search facility
- Customers +order 24/7 +no traveling +more choice +more savings Businesses +global market +access customers 24/7 +lower start up costs +fewer staff needed +easily updated
- Customers -more hassle -cant asses quality -Fraud -Security Businesses -network downtime is expensive -increased competition -reliance on 3rd party delivery -Delivery increasing costs of goods
- How a search engine works - the user types in a key word, a list of results appear with the webpage title, details of the page and its URL. Many are ordered by relevance.
- Boolean Searches - saves time and narrows down searches. AND, OR, NOT. Exact searches with the use of ". a web crawler automatically browses webpages in a systematic manner to produce up to date information
- Relevant? Accurate? Biased? Reliable? Precise? Appropriate?
- " a group of networks joined together with smaller networks"
Comments
No comments have yet been made