Editing Microcontroller (section)

=== Smallest computer ===
On 21 June 2018, the "world's smallest computer" was announced by the [[University of Michigan]]. The device is a "{{val|0.04|ul=mm3}} {{val|16|ul=nW}} wireless and batteryless sensor system with integrated [[ARM Cortex-M#Cortex-M0+|Cortex-M0+]] processor and optical communication for cellular temperature measurement." It "measures just {{val|0.3|u=mm}} to a side—dwarfed by a grain of rice. [...] In addition to the RAM and [[photovoltaics]], the new computing devices have processors and [[wireless networking|wireless transmitters and receivers]]. Because they are too small to have conventional radio antennae, they receive and transmit data with visible light. A base station provides light for power and programming, and it receives the data."<ref>{{citation |url=https://news.umich.edu/u-m-researchers-create-worlds-smallest-computer/ |title=U-M researchers create world's smallest 'computer' |date=2018-06-21 |publisher=[[University of Michigan]]}}</ref> The device is {{frac|1|10}}th the size of IBM's previously claimed world-record-sized computer from months back in March 2018,<ref>{{citation |url=https://www.cnet.com/news/university-of-michigan-outdoes-ibm-with-worlds-smallest-computer/ |title=University of Michigan outdoes IBM with world's smallest 'computer' |date=2018-06-22 |publisher=[[CNET]]}}</ref> which is "smaller than a grain of salt",<ref>{{citation |url=https://www.cnet.com/news/ibm-fighting-counterfeiters-with-worlds-smallest-computer/ |title=IBM fighting counterfeiters with world's smallest computer |date=2018-03-19 |publisher=[[CNET]]}}</ref> has a million transistors, costs less than {{US$|long=no|0.10}} to manufacture, and, combined with [[blockchain]] technology, is intended for logistics and "crypto-anchors"—[[Fingerprint (computing)|digital fingerprint]] applications.<ref>{{citation |title=IBM Built a Computer the Size of a Grain of Salt. Here's What It's For. |date=2018-03-19 |publisher=[[Fortune (magazine)|Fortune]] |url=https://fortune.com/2018/03/19/ibm-computer-salt-grain-blockchain/}}</ref>