26th May 2021
This article is written by Julie Adams, Senior Communication and Content Specialist at DisplayNote.
Let’s set the scene...It’s Monday morning. You’ve prepared a presentation and a few YouTube videos to share with the rest of the room.
The room you’re presenting from has a large display you’d like to share your content on. You know there’s some type of screen-sharing solution fitted in the room. Ok. No problem. So, do you cast, stream, mirror, or share to the main display? What’s the difference? Is there a difference? It’s all just sharing content to another screen, right?
Casting, Streaming, Sharing, Mirroring, AirPlay, Miracast, Chromecast...Modern screen sharing technology is expansive and extensive. It’s no surprise that in December 2020 alone, more than 500 new words were added to the Oxford English Dictionary.
We think it’s time to define and debunk the synonymously used terms, answering the burning question - Is there a difference? And why does it matter?
All involve sharing your content to another TV, screen, or monitor from a computer, smartphone, or tablet. However, there are fundamental differences, and these differences lie in how the content is shared with the other device and what you can do with the content.
So, let’s dive in. We’ll start with...
Screen sharing is when you want to show your exact desktop, laptop, phone, or tablet screen (or an application window of the screen) on displays in other locations. You generally share a window of activity with your audience, for example, a Chrome browser.
When would this be useful?
Screen sharing is useful when you want to share content with other individuals who are not in the same location as you; it’s also great for those joining from different networks. As you can imagine, this is an important feature given the current hybrid climate.
With social restrictions on gatherings still in place in many countries, many schools and businesses have resorted to remote working. screen sharing has become a popular tool during video calls, as it allows you to share your content with the other attendees on the call, meaning they can follow the content on your screen while you talk.
Similar to screen sharing, screen mirroring is when you duplicate your exact desktop, laptop, phone, or tablet screen (or an application window of the screen) and all the movements on another display in the same room.
Think of a mirror - your activity will be reflected directly on the device you’re sharing with. You’ll need a display, TV, projector, or monitor that can receive content wirelessly to do this.
When would this be useful?
Screen mirroring is useful for in-person collaboration sessions when you want to show everyone in the room your exact activity or movements on your device. The presenter can display content from a more accessible device (like a laptop or tablet) and present it to a large screen, monitor, or projector for the whole room to see.
Give me an example
You want to demonstrate how to use new statistical software with your class or colleagues. Unlike casting, which only shares the media clip or file, with mirroring, everyone in the room can follow each step on the big screen as you perform them in real-time on your device. As a presenter, this allows you to draw attention to specific points and answer questions with context.
Airplay is an example of mirroring - your device acts as a broadcaster, the screen acts as a receiver. This allows you to mirror your device activity on the larger screen.
Screencasting allows you to play music, videos, or content from your phone, computer, or tablet onto another device. It’s different from mirroring in that you can no longer see the content on your device as it casts.
You’ll probably be most familiar with Chromecast - a device plugged into the back of a TV or display, picking up the signal from certain apps and allowing you to cast your content. Once your content is casting to the display or TV, you can control it from there.
When would this be useful?
Screencasting is useful when you want to play a video, audio, or media file on a large display, monitor, or TV. For example, you’re instructing a class and want to play a related video clip from YouTube on the screen at the front of the room. It means you can also continue to use your device while something is casting.
How is screencasting different from screen mirroring?
1. When casting, you’re not displaying your entire device screen and activity.
This is why you can still use your phone when you’re casting a Youtube video to a TV. When mirroring, you are sharing your real-time device activity.
2. When casting, the content is not played from your device.
The TV, display, or projector you’re casting receives your online content via a digital media player. Screen mirroring involves sending your screen activity to the TV, display, or projector via a cable or wireless connection.
How is screen sharing different from screen mirroring?
They’re basically both the same. Except...
Each has benefits and drawbacks. This is due to the different technology that drives each process.
We incorporated the benefits of both screen sharing and mirroring into our collaboration software, Montage. And as a software-only solution, you don’t need adaptors or cables to share your or your audiences’ screen.
Unlike many other screen-sharing solutions, Montage gets you connected no matter what. It works with your browser, meaning you and your students are not reliant on downloading specific software to start sharing your screen. Simply visit displaynote.com/join, enter the unique 6-digit Session ID, and start sharing. This is particularly useful for those using Chromebooks in the classroom. Plus, the DisplayNote mobile apps work on any network, meaning everyone can connect.
Montage is also equipped with smart collaboration tools like Screen Annotation and Grid View (for up to four devices), giving you more flexibility and control over how content is shared.