Archive for the ‘C’ Category

Cloud computing

October 28, 2008

Cloud computing refers to the increasing tendancy for online applications to be built and housed online, rather than on an individual’s computer or a smaller company’s servers.

Large data centres are renting out spare capacity to store online applications.

Amazon (with its Elastic Cloud Service) and Google (with its online applications including Google Docs) are already active in the field of cloud computing, and Microsoft has just anounced Microsoft Azure, which will allow the online storage of applications and data.

At its best, cloud computing taps into the principles behind Web 2.0, as applications stored online, or “in the cloud”, can be updated regularly and quickly in response to the ongoing “conversation” between developers and users.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

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Cybersquatting / Typosquatting

September 1, 2007

Cybersquatting involves buying a domain name which is made up of, or contains, another company’s name or brand name, or a miss-spelling of that name.

An increasingly popular tactic is typosquatting – buying a miss-spelled domain name to take advantage of users accidentally typing in an incorrect brand or company name into a URL or search engine – the webpage it sends the user to will often then include adverts for other products.

Many affected companies use ICANN’s Uniform Domain Name Resolution Policy to resolve such disputes. Some adversely affected companies do start legal proceedings, but this can be hampered by the fact that legal comeback varies from country to country.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Cookies

August 31, 2007

Cookies are small files, often including an anonymous unique identifier, which are dropped on to your computer’s hard drive when you visit a website.

They provide information to the website on how you use that site, and they hold information on you so that when you revisit a website you don’t have to repeat tasks, such as registration.

Many websites use cookies – however you can set up your browser to refuse cookies, and you can delete them from your machine too.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Convergence

July 26, 2007

Convergence simply means the coming together of two different things. In the IT and telecommunications sectors, it usually means two or more different technologies meeting in one device. An example might be a mobile phone with web surfing capabilities. The delivery of broadband, voice and video over one line is commonly held to be the prime example of technological convergence.

Convergence can be a useful way of bringing more complex technologies to users by allowing them to access the technology via another technology they are already familiar with. The growing trend for using TVs for browsing online, or for viewing programmes downloaded from the internet, is an example of this.

Businesses are, not surprisingly, often drawn to the cost savings convergence brings.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Coaxial Cable (Coax)

July 9, 2007

Coaxial Cable is a type of copper cable and is the main type of cable used by the cable TV industry. It is also often used for computer networks.

It is more expensive than standard cable but it has benefits in that it can carry more data and suffers less from interference.  However it cannot carry as much bandwith as fibre optic cable can.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Download Cap

July 2, 2007

 A download cap is simply a broadband package monthly download limit. 

Broadband packages which do not offer unlimited downloads will have a fixed monthly download allowance, or cap.  This is the amount of data that can be downloaded in one month. Allowances could be anything from 2 GB to 40GB, or Unlimited (almost always including a fair use policy which means it is not truly unlimited). Aollowances are usually given in Gigs, GB, or gigabytes.

Remember that a GB download allowance refers to an amount of data, not the download speed transfer rate.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

21CN – 21st Century Network

June 29, 2007

21CN, or the 21st Century Network, is BT’s next generation network. An IP (internet protocol) network, it will offer communications from anywhere to any device, and will deliver a range of converged services including voice, data, mobile TV, and video.

At present, the BT network runs on a Public Switched Telephone Network (PSTN) – 21CN will see it move to an Internet Protocol (IP) network. PSTN is expensive to maintain – 21CN will bring together several systems and the new approach should be both more cost-effective, and ensure that next generation converged services are fast and efficient. The programme is expected to cost £10 billion, with savings of £1 billion a year expected.

On the 21CN network your calls from your home or business will still travel along copper wires to your exchange, as they do now – but at the exchange they will move onto the new IP system along with data traffic.

BT has already run a 21CN trial, linking BT exchanges in central London, Woolwich and Cambridge, carrying over 160 million calls. BT is now migrating live customers – 350,000 customers in Cardiff and the surrounding area are expected to be migrated onto the new IP network by the end of 2007.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Copper Wires / Copper Cable

June 20, 2007

Data – whether voice or broadband data – is carried on your phone lines over twisted pair copper wires. Copper has been a standard for data transfer for many years.

Increasingly fibre-optical cable is being laid (cable TV and broadband run over fibre-optic cables), which can data carry services such as TV and broadband at much higher speeds. However there is so much copper wire around (most residential phone cables are copper wire) that it will continue as a standard for some time to come.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Connection Charge

April 14, 2007

Also known as the set-up fee or installation charge, this is a one-off charge to connect your broadband. Typcally, connection charges are around £25 although business set-up fees can be a lot higher.

Many broadband providers and ISPs offer free connection, either as a permanent part of their broadband package offer or as a time-limited special offer.
If cost is a factor in your broadband choice, it is worth working out the total first year cost of monthly charges plus installation charge – some packages with a set up fee may still work out cheaper than one without.

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer

Cable Broadband

April 12, 2007

Broadband can be delivered via cable instead of via your phone line. Cable is available in mainly urban areas of the UK – if you live in a rural area it is very unlikely you will have access to broadband via cable.

There are two cable broadband providers in the UK – Virgin Media and Wight Cable (operating on the Isle of Wight). Virgin Media was recently formed from a merger of Virgin Net and the two main cable providers NTL and Telewest. Cable networks were only installed in the UK relatively recently (in the last 25 years).

Cable broadband download speeds can go up to 20 meg with the right package (ADSL Max only goes up to 8 meg).

By Sarah at UK Broadband Finder
Read my Broadband Glossary disclaimer