Cloud computing and ubiquitous computing systems

Cloud computing and ubiquitous computing systems

1. cloud computing means using computer services on another organisation’s computers, which are known as hosts. The services are provided by organisations known as hosting companies.

2. Some well-known hosting companies for cloud computing include Amazon®, Microsoft ® , Google™ and RackSpace. Cloud users can access software, data and storage on the host computers, which will be at a remote location. Users do this through a web browser or mobile app, without ever directly accessing the servers that the information is stored on.

3. cloud storage is related to cloud computing – it is where only the storage, access and retrieval facilities are provided by the host provider, often via the internet.

4. Availability (B) Data and less may be available anywhere in the world where there is an internet connection.

5. Security of data (C) As the les are being stored by the host, you have no control over them. You need to be aware of their security terms and policies.

6. Potentially lower performance (C) The speed of retrieval of data may be slower than it would be on a local database held in-house.

7. Software (C) The host might not be using the latest, fastest and most secure version.

8. Reliability of the network (C) You need to be able to get through to the host to access and process data.

9. Cost and Convenience(B) You only pay for the storage that you have used. You don't have to provide and maintain the hardrive locally

10. Ubiquitous means ‘existing everywhere’. Processors can be embedded in any device, including clothing, appliances, vehicles, buildings and people, to connect them to the internet so that the data generated by the processors will be readily available.

11. Currently, objects within a ubiquitous computing environment usually contain radio frequency identification (RFID) chips. RFID is a technology that uses radio waves to transfer data to a tag on a person or an object so that the person/object can be identified and tracked.

12. Some futuristic examples of ubiquitous computing include: • a car that can inform the owner when it needs servicing, book itself into the garage and place orders for any parts needed • a refrigerator that can monitor its contents, compile an order as food is used and add the items to the user’s online shopping account.