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The Smallest Computer in the World Fits On a Grain of Rice

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Researchers at the University of Michigan just created the world’s smallest computer (again). Their previous micro-computer, the Michigan Micro Mote, measured 2x2x4mm. It was a complete, functioning system powered by solar cell batteries. But in March this year, IBM announced a new, smaller computer, which measured 1×1 mm, and was smaller than a grain of salt. It “raised a few eyebrows at the University of Michigan.”
After all, it’s unclear if the IBM computer even count as an actual microcomputer. The IBM device lost all its programming and data as soon as it turns off, unlike the Michigan Micro Mote, which retained its programming even when it wasn’t externally powered. “It’s more of a matter of opinion whether they have the minimum functionality required,” said David Blaauw, a professor of electrical and computer engineering at University of Michigan who helped develop the University of Michigan’s newest tiny device. If the IBM machine constituted a computer, then University of Michigan would work to gain back their title: their latest microdevice measures 0.3mm per side (1/10th the size of IBM’s computer), and is smaller than a grain of rice.
The device was designed to be a precision temperature sensor that can report temperatures in clusters of cells with an error of about 0.1 degrees Celsius. “When we first made our millimeter system, we actually didn’t know exactly all the things it would be useful for. But once we published it, we started receiving dozens and dozens and dozens of inquiries,” Blaauw said. It could, for instance, measure the temperature of tumors and conduct other cancer studies, monitor oil reservoirs, conduct audio or visual surveillance, or help in “tiny snail studies.”
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Lost Mobile Phone Tracker Portal CEIR

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CEIR lost mobile phone tracker portal: The Central Equipment Identity Register portal for blocking stolen mobiles will now be available to users in Delhi NCR and help them with lost or stolen mobiles or smartphones.
If you have lost your smartphone or mobile phone, there is now an official government portal to help you block the use of the device, and get some peace of mind. The Central Equipment Identity Register or CEIR, which was launched for Mumbai in September 2019, is now officially open for those residing in Delhi-NCR region.
The idea is that if your mobile gets stolen or lost, you will be able to take some steps on this website in order to ensure that it is blocked. So someone else who stole the mobile or perhaps found it, will be unable to use it. The facility will be extended to other parts of the country in 2020, according to reports. it relies on the International Mobile Equipment Identity or IMEI number to help with tracking. Do keep in mind that one has to file a First Information Report (FIR) after the device is lost or stolen, in order to carry out the steps.
First, they have to submit an FIR with the police about their smartphone or mobile being lost or stolen. A copy of that report should be kept by the concerned user as this will be required for filling up the form on the website eventually. Users should also get their duplicate SIM card from the telecom service provider.
The form requires your primary mobile phone number, and the second one as well if you have one. If you have a dual-SIM phone, you will have to enter the IMEI  number for both as well. You can check the IMEI number from the retail box of the device if you still have it.
IMEI number can be checked from the mobile by dialing *#06# from your device. It is best to note down the number someplace safe for future, in case you do lose the mobile and you don’t have the retail box.