Q. What exactly is an operating system?
A. Every tech device has both a hardware component and a software component. The device is the hardware: the phone, tablet, or computer. The operating system is what orchestrates everything, from launching apps to providing network connectivity.
The model and operating system version are vital bits of information when you have technical problem to solve. It would not be very useful to answer a question about Android when the person has an iPhone.
Chances are the operating system is not part of your everyday experience. It is a nerdy topic.
An operating system version usually has several different parts. For example, “iOS 26.5.1” means operating system for iPhone (iOS), its major number (26), and its specific release, (.5) and (.1).
As if that’s not complex enough, operating systems often have code names or nicknames. Macs formerly used cat names (Tiger, Lion), and now they use place names (Tahoe, Golden Gate). Android tends to use sweet nicknames, like “Jellybean.”
Today, most modern operating systems are just named with a number, such as “Android 16.” If your phone has a voice assistant, you might just ask something like, “What is your current operating system?”
Or try the on-screen menus. On iPhone, go to Settings -> General -> About to reveal the model name and operating system version.
On Android, tap Settings -> About to locate the same information.
On Mac, go to About This Mac under the Apple logo on the top left of the screen.
On Windows, select Start -> Settings -> System -> About. (This varies depending on the device).
Hopefully, now the inner workings of your devices are a little easier to understand. Every time you perform a system update, you’re improving the operating system. That system is key to how the device behaves.
Q. Sometimes I send an instant message to the wrong person. Are there safeguards to make this more difficult?
A. We have all done it—typed a hasty message into our phone and sent it to the wrong person.
There are no absolute ways to protect yourself from yourself, but there are actions that help.
Some devices allow you to “undo send” for the last message. Check to see if your device supports “undo.” Often it only works for a couple minutes after clicking “send.”
Personalizing windows and audio alerts can also help.
Tell your phone you want every text from a given person to use a unique sound, which helps keep them apart.
And my favorite feature in Apple Messages is the ability to have a different visual look for each person’s messages window. And thanks to iCloud, the settings will sync with all your devices. Make a change on your iPhone, and the same background will appear everywhere.
Q. What is this year’s must-have travel tech?
A. Road warriors often depend on a portable Wi-Fi router. These pocket-sized devices can attach to an existing network, either wired or wirelessly, and they create a personal network for your devices.
There are many pocket router models out there, but some of the best are from a company called Ubiquiti.
Ubiquiti makes expensive networking devices with a very good reputation, and pocket routers are one of the more affordable products in its catalog.
The specific model is the Ubiquiti UniFi UTR Travel Router. These are often out of stock, but they are excellent quality despite selling for less than $100 from online stores like B&H.
If you can find one, it’s cheap insurance to help stay connected while traveling. If you configure the portable router with the same name and password as the one used at home, your devices will move seamlessly between home and travel.
Bob has been writing about technology for over three decades. He can be contacted at techtalk@bobdel.com.
Wander the Web
Here are my picks for worthwhile browsing this month:
Free fun with AI
Visit this site and ask it to render illustrations based on your prompts. It is free, but it does require an email address.
Desktop planetarium
Try this site on the Web, and check out the companion app for Apple or Android if you want to go mobile.
Play capture the flag on the web
This free-to-play game matches you against yourself or against new online friends you have not met yet.
