Difference between Cloud and VPS?

Question

System administration

Hey!
For a long time, people have been obsessed with clouds, but CIS providers still sell VPS / VDS.
As I understand it, all this is called SaaS, and there really is a boundary between the cloud and VPS (or VPS in the cloud?)
Questions arose: what is the difference? will classic hosting remain? this is great?

Answer 1

VPS is VPS, a specific virtual machine. It saves you from having to buy specific hardware and configure drivers, as it can be raised as a virtual running machine on both old and new hardware, without reinstalling drivers and other rubbish.
A cloud is a cloud. The cloud usually refers to the clustering of machines in such a way that resources are distributed between them and easily migrate from a particular machine to another machine transparently for the user. Eliminates the need to manually move virtual machines to another server, simplifies the expansion and addition of resources that are roughly infinite in a cluster of machines, because they can be added on the fly, without restarting the "host" - the "host" in the cloud is a cluster of machines, not just one specific host server.
SaaS is SaaS. When it is not the OS that is virtualized, but a specific server, a specific application. Saves you from having to think about the operating system.
That is, each of the above technologies can exist either separately from each other or represent a higher level of abstraction, eliminating the routine.

Answer 2

Cloud - instant expandability, pay only for the resources used, another level of virtualization, is considered a higher level of fault tolerance.
Of the minuses - not a guaranteed channel, no one will offer more than 100Mbs.

Answer 3

the cloud is abstracted from the server.
In the case of hosting: buy a server, install a system on it, set it up, install the necessary software, upload the site, and work.
In the case of a cloud: go to the panel, say that I want a website, there will be php, one database and 5 gigs of space. Fill in the site, work.
Those. in the case of a cloud, the customer is no longer required to configure the system software. There is a base that somehow works. There is a repository that somehow works.
Something similar to shared hosting, but more flexible and wider in terms of capabilities

Answer 4

And in the end, we come to the conclusion that everyone understands something different under the Cloud. And as mentioned above - this is primarily Marketing.

Answer 5

Cloud hosting is the same VPS, only with the ability to easily expand resources, without transferring and rebooting the server.