The internet and E-commerce

- can do more work - make changes the plans on the go - can work from anywhere access emails etc

Advantage of mobile access

Not limited with file size- unlike others e.g. Email

Advantages of FTP

Continual connection(no wasted time)- can use webcams( real time)- make cheap phone calls- fast download- use phone & internet- play games in real time

Advantages of broadband

- quicker processing~ each computer only has to do its own task- lower costs (no super computer) - work load can be passed onto other computers using the internet

Advantages of distributed computing

- open 24/7 - fewer extra costs e.g. Staff/ building - easy to change prices - global market - electronic catalogues updated easily

Advantages of e-commerce for businesses

- can order goods 24/7 - can shop without leaving the house (disabled) - cheaper goods/ comparisons - better for the environment - reviews

Advantages of e-commerce to customers

Helps you narrow down the search- include AND, OR, NOT

Boolean searches

Uses a digital telephone cable- no need to alter the signal (ISDN line) faster & more download

Broadband commection

2 connection methods possible: dial up or broadband

Cable access to the internet

Cable/ wireless- method may effect speed/ usage & time taken to download info

Connecting to the internet

Keeps details of what everyone has bought- helps w/ marketing & targeting customers

Database of customers orders (e-commerce)

Uses telephone line- very slow- can't use internet & phone @ same time

Dial up connection

Expensive monthly subscriptions- broadband varies depending on where you live (different speeds)

Disadvantages of broadband

- so much data being transferred from different computers= security issue

Disadvantages of distributed computing

- only access customers w/ internet connection - rely on other companies e.g. Delivery - expensive to set up initially - delivery make products expensive - more competition

Disadvantages of e- commerce for businesses

- can't try on - fraud - hidden costs(postage) - less social interaction - trouble w/ returning goods - can't pay w/ cash

Disadvantages of e- commerce to customers

Very expensive- black spots (no access to internet)- theft- security problems

Disadvantages of mobile access

Containing all products stocked- including details e.g. Price & no. Left in stock

Electronic catalogue or database (e-commerce)

- Plagiarism - photoshopping images - monitoring the use of someone's internet - sending spam - spreading rumours using social media

Ethical issues with using the internet

SETI- search for extraterrestrial intelligence- radio telescopes share data around thousands of home computers

Examples of distributed computing (aliens)

Vaccine for influenza virus (flu) looks @ how different drugs combat mutant strains of the flu

Examples of distributed computing (flu)

Process involves a system where the data sent is arranged into a package- when received its scanned to ensure there are no errors created during transmission- if there is no problem a message will be sent back to the sender

File transfer protocol (FTP)

- laptops - PDA (palm display units) - mobile phones

Hardware that uses wireless technology

- typing the URL (uniform resource locator) - hyperlinks - search engines - web crawler (browser)

How can you find information on the internet

transfer any type of data, computer programmes, graphic files, music, media or text files

How is File transfer protocol (FTP) used

Navigate within websites using- hyperlinks, hotspots, search engines within the site

Hyperlinks

A network or networks- millions of computer systems connected together

Internet definition

Modulator- demodulator changed the computers digital signal to analogue signals used by telephone lines

MODEM

Provided using infra red/ bluetooth connections to 3G mobile phones/ WAP phones

Mobile access to the internet

- misleading people (website w/ wrong data) - bullying - in appropriate material e.g. Pornography - using social media to spread rumours

Moral issues with using the internet

- online shopping= local shops closing - lack of social skills

Negative effects of the internet on communities

A single online database accessed by customers/ staff- constantly updated as purchases are made or is updates required- data from the database can be transferred automatically to other companies for restocking or payment

On line databases

- people stuck in their homes e.g. Old people can communicate with others - better chances of getting work e.g. Adverts - blogs &a forums can be used instead of public meetings

Positive Effects of the internet on communities

-website - electronic catalogue/ database -specialist staff - database of customer orders - shopping trolley

Requirements of e-commerce

Type in key words reveal relevant sites to match the search condition- google, lycos etc

Search engines

Trolley must include details about products ordered- can be added/ removed- a 3rd party system e.g. PayPal should be used to reduce fraud

Shopping trolley & methods of secure payment (e-commerce)

- privacy issues (collect data about people) - gambling - obesity - online shopping= high street closure - lack of interaction/ social skills - move call centres abroad= loss of jobs

Social issues with using the internet

Staff would have to be trained to maintain the website & update the prices/ stock

Specialist staff (e-commerce)

Groceries, electrical goods, household goods, media downloads etc

Types of things you can buy online

Typing the exact web address of the colour business you require- problem= have to know the exact address

Using the URL

Aka web spider- looks up all webpages and sets them out in a systematic manner so that search engines can find the info quickly

Web crawler

Displays products- must be easily navigated with food search facilities

Website (e-commerce)

Sharing the power of individual computers all over the world- means sharing the power of individual computers- sharing work load

What is distributed computing

When a lot of computing processing power is require to collect, process and analyse data- otherwise require an expensive/ powerful super computer

When is Distributed computing using the internet used

All businesses in order to transfer large amounts of data with other companies/ their customers

Who uses file transfer protocol (FTP)

Computers can be linked to each other or the server via wireless connection

Wireless conmection

Radio frequencies are used to transit the data from a local network station/ router to a receiver in a PC

Wireless radio conmection