Programmers write software that controls hardware and interacts with users - Edexcel - GCSE Computer Science - Question 6 - 2018 - Paper 1

1. Reads the data/packet to find the recipient's address.
2. Has physical connections to 2 or more different networks.
3. Knows routing tables.
4. Keeps track of the original IP addresses.
5. Forwards data / directs/ forwards packets to the next node.

Best case: The item is the middle/median of the list.

Worst case: The item is not in the list, located at the point at which the final division could lead to.

Virtualisation involves storing instances of operating systems and applications on a single device, allowing multiple instances to run simultaneously. This abstracts the underlying hardware and allows users to interact with powerful resources without needing direct access to them.

1. Cloud storage can be seen as a form of virtualisation since it allows users to store data remotely, eliminating the need for physical devices.
2. Software still exists on physical devices but is accessible via the internet.
3. Various storage options can be combined to service several users.
4. The files stored on the cloud could be resident in different locations.
5. Users do not need to understand the hardware and its configuration, which simplifies usage.
6. Backup techniques can involve the cloud without user awareness.