The internet is a ____ collection of computer networks. The term ‘internet’ refers to the ____ infrastructure, not the content stored on it. The purpose of the internet is to enable ____ on an international scale. Any ____ which connects to the internet - whether a PC, smartphone or internet fridge - becomes part of the internet, no matter where it is based. The internet largely works on the ____-server model. For example: - web servers ____ and maintain web content, which is downloaded upon ____ to client computers - mail ____ handle web-based email - media servers allow clients to stream ____ and videos Hosting Hosting is the ____ of files and data on a ____ server. The web server is referred to as a host. The ____ (uniform resource locator) for a ____ includes the host name. For example, the host name bbc.co.uk is included in the URL www.bbc.co.uk. Domain name servers (____) Every website on the internet has a IP ____, consisting of four sets of three digits. For example, the BBC website's address is 151.101.128.81. Addresses like this are hard for ____ to remember. Instead, websites are accessed using ____ names, for example, ‘bbc.co.uk’. Domain names are much easier for users to remember. When a user visits a ____, they enter the domain name as a ____. For example, the BBC website’s address is www.bbc.co.uk. A domain name ____ takes the domain name and ____ its equivalent network address. The user’s ____ is then forwarded to the server that resides at that network address. The cloud The ____ is a generic term for ____ accessed storage. This storage is accessed through the ____. Users do not actually know where their data is stored. Users only need to know that their ____ is stored on a ____ connected to the internet. Using cloud storage brings several advantages: - the ability to ____ files from any location or any device, so long as an internet ____ exists - similarly, access can be granted to another user so they can remotely access your data - ____ need to make backups - cloud storage services back up the data for you There are disadvantages to using the cloud: - no guarantee that someone else is ____ accessing your data - no guarantee that your data is being backed-up - access to data is only possible with an internet connection - no connection means ____ access to data In recent years, the cloud has also become a term for internet-based software facilities. These facilities offer limited versions of popular software such as word processors, spreadsheets and presentation software. Cloud software facilities are ideal for ____-powered devices, or for users who spend a lot of time ____.

1.3 The Internet

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