P4 - Task 3

The home page has links to each page so people dont have to go through the whole website to book a film and they can go to whatever page straight from the home page. 

This page allows people viewing the page to see what films are available to watch each month. It also gives them a chance to watch the trailer before booking the film. 

This page allows people to watch the trailers so they can decide whether they want to book the film. 

The reviews page allows people to write a review about the a film available. Other people will see these reviews which will allow people to decide if they want to watch the film. 

The payments page allows people to chose which month which will select the film and what date they want to watch the film. 

P3 - Task 2

Hacking involves re-programming a system that is not authorised by the owner or designer. If a website was to be hacked it could mean that customer’s details could be accessed and details of the company and the price of products could be changed. If a website is hacked into, the person who hacked into it has the ability to change anything that is on the website.

Viruses can cause many problems and can damage a computer. Viruses can copy themselves which means they can access the whole computer which then infects it. If a virus has infected a website, it doesn’t only infect the owner’s computer but it spreads to other users once they have entered the website. This can mean that the website would become unresponsive and not work if it has been infected.

Identity theft involves using someone else’s identity to access specific things and also to make money. Many people share their details and personal information on the internet because they think that it is secure however, personal information can be easily accessed through the internet. If someone can hack into a website, it would be easier for them to receive any information that they have given.

Firewalls are there to block unauthorised access and can be in hardware and software form. The firewall prevents any unwanted programmes coming in or going out of a network. This can also allow or deny access based on a set of rules.

Secure socket layers (SSL) encrypt sections of network connections using a keyed message authentication code. If a website doesn’t show that it is a secure website, customers are more likely to visit.

A company/website that stores details is Argos. The screen shot shows that the website is secure to use online shopping on the website and the terms and conditions of the company. 

P2 - task 2

There are many different factors that can affect the way the internet and web pages perform. One factor is the download speed. The download speed is the pace that data comes from a source to your computer when connected to the internet. This factor can affect the performance of any webpage because it can affect the multimedia on the page. Another user side factor that can affect the performance of a website is PC performance factors which include browser, cache memory and processor speed. The browser can affect the performance of a website because some browsers do not support certain files and if the browser is not updated and you have an older version of the browser it can slow the performance down and you may not have some of the features you need. Cache memory is another PC performance factor that can affect the performance of a website. The cache memory stores instructions that are constantly required to run a program. This means that programs can run quicker. If there isn’t enough cache memory, it could mean that certain things may load slower because it is not stored in it. The processor speed is another factor that that can affect the performance of a website. By having a fast processor it means that the website can hold more information.

Server side factors can also affect the performance of a website. A server side factor can include the web server capacity which involves available bandwidth, executions to be performed before page load. The available bandwidth is the internet speed and number of hits. This can affect the performance of the website if you only have limited internet so things may not load and you may not be able to see things such as pictures. Executions to be performed before the page loads are another factor that can affect the performance of a website. Certain things such as the background and colours may load first and other multimedia may load slowly and come up on to the website bit by bit. The number of hits is a request to a server that hosts the web page. The number of hits is the number of files that are requested. File types can also affect the performance of a web page because certain file types may not always been seen on some browsers meaning that some multimedia may not be viewable to the user. This can involve flash that is a browser add-on and not all browsers may have installed this. If all pictures were saved in the format of a JPEG, it should be able to be viewed by all users.

Task 1 - M1

Web 2.0 was created in 1990 and it allows users to interact through social media including Twitter and Facebook. A difference between the traditional World Wide Web and web 2.0 is that there is a better link between internet users, other users and content providers.

Blogs can be a discussion or informational page published on the World Wide Web which consists of posts where the most recent post would appear first. A blog is an interactive page which allows people to leave comments which could be seen as a form of social networking. Blogs can be personal; however they can be used as advertisement for a company.

Online Applications are used by people who are on the internet. These applications can mainly only be used by people who are connected to the internet.

Cloud Computing is the use of computing resources including hardware and software that is delivered over the internet. An example of cloud computing is Google drive. This involves uploading something into the application and this then store what has been uploaded and can be accessed from anywhere as long as you are connected to the internet.