Virtual Machines vs Containers

This is an animated video explaining the difference between virtual machines and containers.
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[@PowerCertAnimatedVideos]

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[@PatJones82]

Been using Roboform since it came out! No issues with it at all. love it.

[@ThioJoe]

Finally after years, a simple explanation for what Docker is

[@everythingtube172]

omg it's ThioJoe

[@CMOS4081]

@@everythingtube172 who's that?

[@johnnycincocero]

@@CMOS4081 A popular tech KZbinr.

[@pancake8996]

fr

[@SarmadTechLab]

Hello Joe

[@yg78t76t7]

Your animation and graphics are NEXT LEVEL. Easy to understand and very good for visual learners. Thank you!!

[@PowerCertAnimatedVideos]

Glad you like them!

[@paritosh944]

+1

[@walterbyrd8380]

Many big name online educators have a video of somebody speaking to the camera, or a bullet-point presentation. Neither of those methods have any advantage over just reading material in book. Animation to help us visualize what is happening is a big help, and has a real advantage over simply written, or spoken, material.

[@dion4037]

This is the first video ive ever seen that completely breaks down and shows what containers actually are. Dockers own white papers arent as great as this. Thank you so much for this video. Im subscribed!!!

[@robertderoschdestvo]

Servers can run multiple applications. Multitasking has been a feature of OS's since the 1960. VM's were created to run different OSs. Containers were created to simplify deployment of applications.

[@dariovicenzo8139]

I just asked the author why he said 1 server=1 application :)

[@purplecrayon7281]

@@dariovicenzo8139it's for security and to prevent network congestion. It;s not good networking design to have your database server, mail server, and web server to be on the same machine.

[@govtjobaspirant8222]

A server has lot of unused of space in some cases to use that space virtual machines created since vm s took more space as os so many containers deployed in single vm

[@lainwired3946]

There's a fair few mistakes in the video. Most docker containers have their own OS too, but they're using a much stripped down version like alpine Linux.

[@iamwisdomsky]

​@@lainwired3946 no one is stopping anyone from using a full ubuntu server based docker image or anything. alpine linux is just a preference due to its lightweight in size. There's also a little bit inaccuracy in the video. in windows, you can run linux-based docker images thanks to WSL.

[@n8wrl]

Very well done! Two other things to consider: Another "con" to VM's is maintenance and updates. Each VM is a running instance of an operating system, and as you point out it has to be licensed. It also has to be patched/updated/cared for, just like any other server. On the container side, one problem there is persistence. Deploying containers that have databases, or other data stores that need to "stick" is challenging. Containers are great because you can deploy them, move them around, and tear them down quickly and easily. Not so easy if they provide the persistence.

[@johnarnold893]

Brian Smithson........Linux doesn't have to be licensed.

[@alexaneals8194]

@@johnarnold893 Actually many of the enterprise versions of Linux do have to be licensed. The license model is different from Windows, but it still exists. Technically, all versions of Linux have a license. The "L" in GPL stands for license.

[@kuhndj67]

Agree cost is a factor to consider with VM's... and I'd add the virtualization environment cost to that... I use VSphere and while I love how easy it is to build/deploy/maintain a capable cluster, it's also very expensive. Otoh, container environments currently require more high skilled staff to configure and maintain compared to enterprise Virtualization like VSphere, and that can also get very expensive. I think that will change as containerization matures, but right now containerization adds a lot of complexity along with all that potential. I really do think the future is a combination of the two, using both where they're strong.

[@user-db2uj9vc7s]

In other words you can mix the usage of both depending on context. Where i work we use vms for databases and containers for the actual database

[@aniketsaha7273]

This guy should be teaching and explaining all the subjects ever existed in world...I Aniket Declare you as the "Master Teacher".

[@darman210]

Thank you! Finally, an explanation that isn’t 45 minutes long and doesn’t use lingo to define lingo.

[@alonzosmith6189]

I miss the days of building servers, installing the OS, locking it down then racking stacking servers to handoff to the application teams

[@Sohailali1]

What kind of education is required to do this line of work?

[@madezra64]

@@Sohailali1 You would wanna get educated in Information Technology mostly. Also helps to understand some computer science, electrical engineering. When I say electrical engineering I'm not saying you have to go become a licensed electrician, but it helps a ton if you can at least understand how electrical components work and the physics behind it. This helps build a foundation for working with computer hardware that enables you to understand what you're doing when assembling and speccing out builds. Computer science gives you the knowledge of how computers fundamentally work which goes hand in hand with the knowledge of how electricity works, but the primary education you want is knowledge on IT. You need to understand TCP/IP and the OSI model. For example, routers generally operate at layer 3, while switches operate at layer 2. Understanding this key difference is essential when building out networks.

[@Sohailali1]

@@madezra64 Thank you for a detailed response. Appreciated.

[@jaimcgee4566]

Me too.

[@lawrencedoliveiro9104]

I heard it described as the difference between “pets” and “cattle”. “Pets” require individual setup and management; when they get sick, you go in and fix them individually. “Cattle” are set up and managed _en masse_ ; if one gets sick, you simply kill it and create a new one.

[@velavanvijayakumar9759]

A very crisp and clear explanation of VM and Containers. I had no clear idea of what it is until I watched this video

[@tarekelsabaa]

you never fail to amaze me with how simple you explain things.. keep up the good work!

[@KC-kp9nq]

I’m just making a career switch to IT. I’m so glad that I found this channel. Finally someone who can explain things so clear and easy. Thank you so much ❤️

[@gangstaberry2496]

Me too!! I just started my studies. These videos have clarified so much for me, I'm trying to watch them all!! Good luck in your new field ^^

[@SeekersMentality]

I think a vid about the differences between quantum and standard computing would be a nice topic to cover

[@LuisRodriguez-wo6nl]

Yes along AI and ROBOTICS algorithms inside quantum processing!!!!!

[@handsomeman-pm9vy]

@@LuisRodriguez-wo6nl Only one problem. There are no quantum computers. It's all theory and research at this time. There may never be any.

[@Daniel_WR_Hart]

@@handsomeman-pm9vy They've been around for several years now, they're just not that powerful yet

[@michaeldebellis4202]

@@handsomeman-pm9vyI agree. Also, if quantum computers are ever real they may be amazing for solving a narrow set of specific problems like code breaking but they probably won’t ever be general purpose because of the inherent randomness in quantum theory.

[@lazyk1751]

This is by far the simplest, most opaque description of these computing concepts I’ve ever experienced.

[@robsonfranciscojose9871]

The best IT teaching channel on KZbin

[@ardeshirhaidarbaigi5336]

Hallo, thank you very much for your most efficient videos. English is not my first language. (Not native English) Despite this, I understand everything perfectly. The speed of the language and the way the topics are explained are excellent. Although you explain the complex topics professionally and do not leave out any technical context, everything is extremely understandable. The animations are excellent and contribute to understanding extremely effectively. Thank you again for your effort. I will recommend you without reservation.

[@CertifiedOtherBoy-cn7pg]

Again and again through out my studies, I find myself returning to your videos. Thank for you for simplifying these concepts for us.

[@carlosmccrary9036]

You are the man as always! This channel is such a blessing. I have been struggling specifically with the concept of containers lately but now you’ve made it crystal clear. Thank you!

[@emreduman9940]

This is the simplest and clearest explanation of VM and Containers that I watched. I love your Animations, keep going.

[@RoyOlsen]

A few slight (and common) misconceptions, but overall a nice video. Thanks for putting it out. There is no way RoboForm is ranked the #1 password manager by any reasonable measurement. They appear to hold no certifications and don’t publish CAIQ assessments, SOC 2 reports or third party security reviews, nor do they have a vulnerability disclosure program. I don’t see why anyone should trust them above the top players in that space.

[@SonOfAdolf]

I don't trust any of them. Too many leaks/hacks

[@MarcosDemian]

You never cease to amaze me with the simplicity of your explanations. I'm totally new to the concept of containers and this is the first time that I´m able to understand what's going on behind the scenes. Thank you very much for sharing this tutorials

[@squarehead6c1]

Wow, it can't get much more clear and concise than this! Thanks!

[@SupraManG]

A very well detailed explanation between a Virtual Machine and Container. I never knew a CONTAINER existed until this video popped up. Great video, PowerCert and thank you for it.

[@farhansabir0499]

The most important thing I have known today, you don't know how badly I need this tutorial and you have explained it very well, beside I miss your videos.

[@jasonaaronable]

Truly appreciate the hard work that goes into creating videos like these. Everything from the storyboard, script, voiceover, graphics and animation, is top-drawer! Question for the designer: Which software do you use to produce the video?

[@PowerCertAnimatedVideos]

Powerpoint

[@cyberdevil657]

@@PowerCertAnimatedVideos Damn i had no idea powerpoint could be this useful :D. Love your content

[@UncleJemima]

@@PowerCertAnimatedVideosextremely based

[@gangstaberry2496]

I would have never guessed!! The illustrations are beautiful ^^

[@paleraluswinga]

I really need an updated full Comptia A+ course from you, you are a great teacher

[@ridenar1456]

love the simplicity/clearness of this. In my experience the more complex someone makes something, the less they understand it themselves, and are probably using alot of third hand information

[@technicaluserco]

I've heard the concepts many times, but your cool graphics have helped me a lot to understand / assimilate concepts. Thanks.

[@csabafarago1673]

Thanks for the video, nice summary! You say that containers share the underlying operating system, and a container contains the application only. As a disadvantage you mention that they must be packaged the same operating system of the server. My understanding and experience is different. A container actually do have an own operating system, but that is pretty lightweight. For example, Busybox is just a 1.2 MB Linux distro. Alpine is ~5MB. So they are really small, and they startup quite quickly. Therefore the mentioned disadvantage also does not apply. We can use Alpine in Windows environment, so in this case the host would be Windows and the guest (i.e. the container) would be Linux.

[@khaledelnagar4135]

Was coming to write same comment. But he's right. When you install Docker on Windows, Docker actually installs aside, a Linux VM that it uses behind the scene to execute the dockerfile commands.

[@Celluarexpress]

your videos are the best on youtube, your voice is monotone and robotic, but is actually soothing and you explain things better than my it teachers, and your animations are great and i dont have to watch somebody talk about something i can't see lol You helped me get my Aplus last month and my AZ900 last week. you taught me what ram and routers were 3 years ago when i took my first laptop apart lol

[@timtim2949]

THANK YOU. I’ve been looking for days for someone to explain Docker/Containers. This makes so much sense. I’m definitely subscribing.

[@farrukhahmedsid]

The way he explains and the animations with definitions are perfect.

[@eechaze12]

Gifted teacher. Many teachers do it for a paycheck

[@TerenceKearns]

Ive been out of the IT game for about 20 years. I kept hearing about docker (even though I have nothing much to do with systems or development). It was nice to get a clear explanation just to satisfy my curiosity.

[@gangstaberry2496]

It's one of the best for sure!

[@omaropt5443]

Honestly,we must support this channel because It gives us important info without baying nothing ..thank sir.

[@jhc4090]

You never dissapoint! Can't ask for a better explanation ❤

[@kakashi99908]

So to sum it up: One OS instance can run many containers but each VM needs its own OS. This is because containers only need access the OS for the kernel and none of the extra fluff making them great for dedicated tasks and saving on a bulky full on OS stuff for every single little app.

[@bonganimtshali9988]

Finally I understand the differents. Been cracking my head as other channels just confused me even further. Thank you for this.

[@csimet]

We ran large ESX deployments across two data centers on HP blade servers... literally hundreds of virtual servers for all sorts of healthcare apps and for virtual desktops the users ran for those apps. I see Docker as the next level of application deployment on top of those VMs. ESX (like other virtual OS platforms) provided the ability to physically distribute systems across those data centers and their hardware pools, either for load sharing or disaster recovery (in the even one DC had issues). With ESX, you can "float" the servers between machines almost at will. Mixing ESX with Docker seems like a good combo to bring application deployments in DCs to the next level.

[@himankjain8259]

The simplest and best explanation I found for this topic. Thank a lot!

[@YoursAkki81]

This guy is a legend, I have been following his videos since 10 years. Great work !

[@BobFrTube]

Operating systems like Windows can host many applications at once. Normally one shares by having separate processes. VM and Containers are more isolated but basically kinds of processes.

[@VardgesVardanyan-e7e]

That really amazing when a man can explain difficult things by simple words, as it has been said every genius thing is simple. Every time when I try to understand what are actual this two thing mean, people around me try to explain it as difficult as they could in order to show themselves very clever persons. My sincerely gratifications to you my friend. Make such content as much as you can.

[@Eddie-uh7tl]

@PowerCertAnimatedVideos Thank you to all the folks that make these videos possible, you guys make a complex subject and break it down in a way easer to digest for our noobie tech brains. You guys are amazing at what you do!

[@devinhedge]

I appreciate you trying to explain this. I’m 90 seconds in and you’ve already misrepresented the history history of virtual machines and containers. You land on the right conclusion, but not articulating the history accurately misleads the audience into thinking that virtualization and containers are a new phenomenon, which they aren’t.

[@VardgesVardanyan-e7e]

That really amazing when a man can explain difficult things by simple words, as it has been said every genius thing is simple. Every time when I try to understand what are actual this two thing mean, people around me try to explain it as difficult as they could in order to show themselves very clever persons. My sincerely gratifications to you.

[@stanpotter7764]

Perfectly explained! Thank you!

[@carlosbah4623]

Impressive the simplicity and clarity of these videos, even when dealing with complicated technical subjects! ¡Gracias por compartir!

[@Buzzygirl63]

This is the best explanation of a "container" that I've run across. Thanks!

[@kso35]

I very much appreciate that you started with a little bit of history-- going into why we even have virtual machines. This took me down a neat Rabbit hole! This is great for learning! Thank you !!!

[@bazcurtis178]

Great video. I think security updates would be worth adding as well. You are only updating one OS and the Containers only have the parts required to run so no unwanted software. The software the container has still needs patching, but less to patch

[@KasperPlougmann]

You are also updating the containers underlying Linux distro If not, you're gonna have a bad time

[@wb8ert]

Please take note IBM has been Virtual Machines since 1969 with VM/370 (written by MIT between 1967 and 1969). Today z/VM and VM firmware can run Unix, Linux, MVS, VM under VM, CMS, DOS, CICS, etc. There is specialized hardware to guarantee 100% uptime and quick encryption. VM/370 is the first and longest available Virtual Machine software in the world! I should note running an OS under VM is quick to boot and run applications. IBM put a lot of VM into the hardware. When a guest OS is running VM gets out of the way until needed (such as a privileged instruction). IBM z/systems are very fast , secure, and allow for no downtime. You can also have devices up to 50km (about 30 miles) sway from the system.

[@simonknights7526]

Correct! Retired VM Systems Programmer here. I worked on VM/370 from the late 1970s through various versions (HPO, XA, ESA, zVM) until well into the 2000s. Happy days 😀.

[@creativeworx47]

My morning caffeine dose is here as always. Thank you very much❤️

[@ioan_jivan]

Wow I came here after multiple videos to learn about containers. And I learned about VMs and containers plus other things. Great video. The from the ground up no non-sense approach works

[@wannabedal-adx458]

Great video. As always you easily explain difficult concepts. Thanks!

[@tomasapostol1901]

Excellent, as always. Thank you, very much, PowerCert, for these great lessons.

[@aussiegruber86]

I worked for a very large organisation in Australia and watched the transition from single servers per application to a couple of servers running virtual machines. Literally went from 30 servers to 2.

[@gregsturgill4505]

Thank you SO much for your fantastic, informative, easy-to-understand videos that make these concepts easy to understand. Have you given any thought to doing an updated series of videos on the current Comptia A+ exam? The 1101 and 1102 series? I am already using several of your videos to help with my studies, but it would be great to see the entire series covering every topic.

[@saltypatriot1768]

i absolutely love your graphics on this channel

[@PowerCertAnimatedVideos]

Glad you like them!

[@eduardoalanis6531]

Always great videos ! I usually get bored when having to watch videos to learn something new, but yours are always very entertaining and educational. Thank you!

[@jonathanstevenson6753]

This is the best explanation of this i've been able to find after years of searching. Thank you so much for putting this out there. It is SO GOOD

[@rmk918]

Thank you so much for such a easy to understand explanation of containers and their comparison to vms. Cheers

[@nithyakrishna1166]

This was so well explained . I finally understand this . Thank you so much!

[@LuisRodriguez-wo6nl]

This is absolutely by far the best video explanation on these 2 technologies.. for a 9 minute video .

[@robertleem5643]

Many thanks for explaining all that. It was very helpful and easy to understand. My company now uses Dockers and was wondering what it was

[@skeletordevops]

This channel has become a go to for me. Great explanations and illustrations that always bring clarity and broaden my understanding of the topics.

[@LordYendo]

The best teacher on KZbin

[@kenyayopp1653]

As always, so meticulous in your presentation! Thank you!

[@kimlazenby4450]

Thanks! That was a great concise and straightforward explanation. Very helpful.

[@syringan2.015]

Finally can actually understand what VMs is even its only on the surface a good start Thanks man 🙌🏻

[@GilbertoFerreira]

0:37 - if I am not mistaken Linux beeing a Unix-like operational system has the hability to ran multiple services with one single servers. I did it is the pass many times since 1997 and so on. In fact Unix and Linux included has time sharing based and multitasking that's allowed this OS to do such work.

[@lawrencedoliveiro9104]

That’s basic multiuser functionality. Linux namespaces go beyond this, so that processes can have different views of the filesystem, the network, even of users and other processes.

[@RoyOlsen]

You can, but it can also be terribly inconvenient. Different applications and their dependencies tend to create conflicts and adds to complexity. Think of containers as building on top of conventional time sharing features to provide more independent application environments on the same OS. Container technology is also the opposite of UNIX in the way that it does not promote sharing of libraries and other dependencies between processes.

[@walterbyrd8380]

Love this channel. But, you do not need VMs, or containers, to run more than one service on the same server. The same server can run a web server, email server, and dns server, without using VMs, or containers.

[@RoyOlsen]

You can, but it can be terribly inconvenient. The video oversimplifies things, and I have no idea why he chose to state security as the main driver, but separating different applications and distancing servers from hardware really is gold.

[@ravikumarkamisetti181]

I always like first and watch your videos. . Trustworthy channel 👍

[@PowerCertAnimatedVideos]

Thank you :)

[@nousmouronsensamble]

I love you man, all your videos are explained in the simplest way, you are a really logical guy and make my life easier. Keep up

[@purplecrayon7281]

This channel only covers the fundamentals of networking but it's the best at explaining difficult concepts.

[@4196marcos]

Thank you for all your videos, I got into IT by watching your videos.

[@dootvevo7511]

Was looking for an explanation of this a few days ago, should have checked your channel. Quality as always! Keep it up, you’re doing the lords work.

[@yourlinuxguy]

What a wonderful way to explain concepts. I think most of your views must come from tech people sharing these very rich videos to not-tech guys to make them understand the concepts.

[@srikrishnarr6553]

Your narration , animation all are 100% top class..Thanks much

[@julies5085]

Lovely video with good clarity. Thank you! 😊 the roboform ad at the end was good too

[@kpinvestments3768]

Wow!!! Just amazing. How come I did not come across this video before? The best way to explain differences between VMs and Containers.

[@HeavyDriver8214]

I did watch videos from different channels on this and I didn’t understand but this guy explained in very simple terms. Thanks! a lot.

[@CryptoBeanie]

Great video! Your videos got me started on my IT journey!

[@MrDeeb00]

Confused between 4:25 where it's said that the container can be distributed and hosted on any computer and 6:22 the first disadvantage which seems to be a contradiction to the previous point _Must be packaged to work with the same OS of the server_ Thank you for the great video! ❤

[@yut576]

Thank you for the graphical and to the point explanation.

[@__J_____]

You hit the nail on the head everytime. Thank you for your videos!

[@brandonfarfan1978]

A big thanks for this lesson. The animations really help, to make it easy to understand, while you're explaining. Also, thanks to this vid, now I finally know what Docker is.👍😎

[@transformer889]

This channel is amazing, I was searching for the explanation of the virtual machine and went through many posts on youtube I could not figure out what they are talking about until I found this channel, many thanks

[@gangstaberry2496]

Only a small detail... Docker also runs on Mac, for anyone who's curious ^^ thank you so much for the amazing video

[@papajohnscookie]

Your videos are great, I love the visual representations of concepts

[@nilrocks]

Absolute old school style and loved it. Thanks for the info.

[@lisannasil2346]

Your animation and graphics are NEXT LEVEL.

[@1SueU]

i just wanted to express my gratitude for your content! Incredibly information dense but explained so understandably as always :)

[@TerenceKearns]

Hey, what a great video. So clear. Love the graphics and animations - they really help.

[@chestnutfufu]

the best explanation ever to understand the container! thanks!

[@kayuu8421]

Great Video ! For everyone who wants a short thing to memorize about VMs and Containers: VMs simulate Hardware / Containers simulate the Operating System !

[@angurajdinesh8644]

Can you please also make a separate video for nginx and docker elaborately. Thanks for all of you videos, as always you explain difficult concepts easily.

[@jqqq58]

Awesome video that clear all my doubts of VM and containers. Thank you so much!

[@ByronAgain]

Except that we used to (back in the olde days of the 90s) , before VMs and Containers, run multiple applications on a single server by having each application use a different port and by taking advantage of the process manager. So, your opening statement isn't quite right. For example: It was common for us to save resources by running the database and the webserver in a development or staging environment on the same server.

[@jonrend]

Totally agree.

[@mariasundus516]

Honestly you make the greatest videos ever seriously I cannot ever thank you enough ! i wish there are more cyber security as im really interested in starting in that area but I cannot find anywhere such great explanation on the internet