What are Virtual Machines?
Virtual machines software packages. These are heavy packages and carry emulation of hardware which are low level such as Disk, CPU, etc. They provide complete functional dummy of computational system. They also provide full isolation security. The does not have as good iteration speed as the cpntainers but encompass full stack system.
A few popular virtual machine providers are:
- Virtualbox
- VMware
- QEMU
What are Containers?
The containers are also known as software packages. The containers are used to contain all the necessary dependencies required for the exdcution of the application. There are various items kept in a container which is a software package. These carry high level software and carry high iteration speed.
The examples of a few popular container providers are mentioned below:
- Docker
- RKT
- Linux Containers (LXC)
- CRI-O
Now let us understand some facts about virtual machines vs containers and which should be preferred as per the required task.
Difference Between Virtual Machines and Containers
Virtual machines and containers carry various similarities such as both being software packages, but there exists a few differences between the two which are mentioned in the table provided below:
| Difference Between Virtual Machines and Containers | |
| Virtual Machines | Containers |
| It is used to virtually control other software. | It is used to allow functionality of different applications independently. |
| It is used to virtualize the entire computer system. | This virtualise the operating system. |
| Large size. | Smaller size. |
| Comapritively slow speed. | High speed of run. |
| Highly secure. | Less secure. |
| Examples: KVM, QEMU, Xen, VMware. | Examples:RancherOS, Docker, RKT, PhotonOS. |
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