The speaker, Abhishek, is explaining the concept of virtual machines (VMs) and their importance in DevOps. He uses an analogy of a person owning a large plot of land, but only using a small portion of it, to explain how VMs can help increase efficiency by allowing multiple virtual environments to run on a single physical server.
Abhishek explains that a server is a computer that hosts applications, and that VMs are created using a hypervisor, which is a software that allows multiple VMs to run on a single physical server. He also explains that VMs are not physical entities, but rather logical environments that function as virtual computer systems.
The speaker then uses an example of Amazon Web Services (AWS) to explain how VMs are used in cloud computing. He explains that AWS has data centers around the world, each containing multiple physical servers, and that users can request VMs with specific specifications, which are then created by a hypervisor on one of the physical servers.
Abhishek emphasizes that VMs have improved the efficiency of servers and have enabled millions of users to use virtual machines, whereas previously, physical servers were limited to a single user or team. He also mentions that the concept of virtualization has improved the day-to-day process of using computers and servers.
The video ends with the speaker encouraging viewers to ask questions in the comment section and announcing that he will be doing live sessions once a week to answer questions and provide further clarification on DevOps concepts.
1. The speaker, Abhishek, is presenting a course on DevOps Zero to Hero.
2. The course is part of a playlist on DevOps, which Abhishek has created and will continue to upload videos to.
3. Today's topic is virtual machines, which are a crucial concept in DevOps.
4. Abhishek will explain the concept of virtual machines with a real-world example.
5. He will also explain the differences between virtual machines and physical servers.
6. The speaker will not create a virtual machine today, but will discuss how to do so in the next video.
7. Abhishek will provide a real-world software industry problem and convert it into a problem that involves virtual machines.
8. He will explain that virtualization allows for more efficient use of resources by creating logical partitions on a physical server.
9. Abhishek will discuss the concept of a hypervisor, which is a software that can install virtual machines on physical servers.
10. He will mention some popular hypervisors, including VMware and Zen.
11. Abhishek will explain that virtual machines are logical computer systems that function as physical computer systems.
12. He will discuss how the same concept is followed by cloud platforms like Amazon, GitHub, and Microsoft.
13. He will provide an example of how a user can request a virtual machine from AWS in the Mumbai region.
14. Abhishek will explain that AWS will look for a physical server that is ideal for the user's requirements and send a request to the hypervisor installed on that server to create the virtual machine.
15. He will conclude by explaining that the user will receive a virtual machine, an IP address, and all the required information to access this virtual machine.