Monday, 29 April 2013

P3





Data protection act

the data protection act is an act which is enforced to help keep peoples personal data safe when they give their details to a company / service. It makes sure that the people who have information keep it to themselves and do not abuse the act as they will be prosecuted under this act.



Security Risks

Hacking - Hacking is basically entering something you shouldn't, this could be something from guessing someones Facebook password to hacking into the whole of Facebook. Hacking would be used for many things, such as finding out information on somebody's profile, or trying to delete data off of a website so people will not know what it is about. Hacking involves re-programming a system so it will do things which the site wasn't first authorized to do.

Identity Theft - Identity theft is basically stealing another persons personal information such as bank details or their name and address, this could retrieved from websites which people may have entered their information into and not checked that it is a secure website. this would be used on websites to try and get people into trouble or maybe even use their bank details to buy products off the victims bank card.

Viruses - Viruses are programs specially made to steal and corrupt data on websites from a website or even a computer system. They are normally downloaded from the internet as you may have clicked a link that you wasn't legit or safe and this is where people can then give your computer system a virus and it may force it to not work. A virus will effect everybody that clicks on it in the same way, such as if it will effect everyone that comes in touch with it who uses the website, not just the host of the website.





Security Protection Mechanisms:

Firewalls - the firewall is made to stop things which aren't allowed to access the system, such as virus', it will decide if the file entering the system is allowed due to the network transmissions based on set rules. Software firewalls are already built into the computing system, such as windows firewall, which is built into all windows systems to prevent files which are not welcome to getting into the software. Hardware firewalls are devices which could be connected to the router to prevent bad virus' from entering via the internet.

Passwords - Passwords are things that prevent access to something private, such as your own Facebook space, you will be the only person who knows the password and this should be private as it is personal. the stronger the password the less likely you will be hacked, such as is you have a simple password like your own name for example, people would find this easier to guess. Your password will be harder to guess if you include numbers and capital letters; thus making it harder to get correct.

SSL - SSL ( secure socket layer) helps provides communication over the web. websites which have SSL will have a certificate to show that they are secure and this will be more appealing for people to use as they will know that it is a safe site to use. it is the encryption of the data of network connections above the transport later and a lower sub-layer of its application layer using a keyed message authentication code message integrity.





Friday, 19 April 2013

M1



web 2.0-

A Web 2.0 site will allow users  of the site to interact and collaborate with each other in a social media dialogue as creators of user-generated content in a virtual community. In addition to websites where people are limited to the passive viewing of content. Examples of Web 2.0 include social networking sites,blogs, wikis, video sharing sites, hosted services and web applications, these would be sites such as Facebook, Twitter and Youtube.

Blogs-
Blogs (short for web-log) could be anything from a webpage for a school account for posting work onto, or even just your thoughts on something which you then posted on the internet. Mostly blogs are based on an particular subject and this way people can communicate using these such as if somebody were to post a blog about cycling, users could comment on the blog to get their view across and then this could start a debate on the matter. As a result of this i believe blogs are a good way to communicate using the internet.

Online Applications-
Online applications applications are things such as PowerPoint, word or excel. Online applications have the functionality and data on a server which is accessed over the internet so you may only need an internet connection and a web browser to utilise them.  they don't need anything on your computer to download them such as they are fully hosted tools. changes on these tools are easy to do and not very pricey.


Cloud Computing-
Cloud computing is the use of computing resources (hardware and software) that are delivered as a service over a network (usually the Internet). The name comes from the common use of a cloud-shaped symbol as an abstraction for the complex infrastructure it contains in system diagrams. Cloud computing entrusts remote services with a user's data, software and computation. An example of this would be an App on your phone, such as Facebook or Twitter, which you can use at anytime anywhere as long as you have a connection to the internet.




P2 unit 28




download speed- download speed is important because if the download speed is slow this will be effecting the rate that i can edit my website as i may need to download certain software to help me with the creation of my website.

PC performance factors- the PC performance factors will be important when i am creating a website such as if the browser doesn't support the webpage that i have created i will need to re download a new browser which may take more time that i should be spending on the webpage. the memory of the PC may not be to the capacity of what i am looking for, e.g. i may have a lot of images and videos i want to put onto the website and the computer may not have enough memory to support this. if the processor speed is slow this will slow down my work and will then take longer for my to make my webpage such as i will need to make sure that the processor is at a good speed so this will not slow down the creation of my work.





Web server capacity- if the web server that i am using doesn't have the right capacity i will need to try to find a new server which can support the capacity that i need to run my website, such as if i have lots of videos and the server doesn't support may videos i will need to find a server which does support videos. 

Hits- another factor that i will have to take into consideration will be the number of hits i can have on my page, such as some websites cant attain lots of users at once so my webpage should be flexible to this incase i have a big wave of users at one time.

file types- the file type that i will be using will be JPEG or bitmap, as these two will be the most supported for my page as the camera i use uploads them as these images so this will then be more time efficient for me. when i upload videos i will upload them in a MP3 or MP4 format as these are both high quality video types which can be used in HQ or standard view.