User talk:185.89.159.50

February 2022
Hello, I'm Zac67. An edit that you recently made to Talk:Serial port seemed to be a test and has been reverted. If you want to practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! Zac67 (talk) 19:34, 8 February 2022 (UTC)

April 2022
Please do not add or change content, as you did at Giorgio Chiellini, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Dr Salvus 19:25, 26 April 2022 (UTC)

March 2024
Hello, I'm Denisarona. I wanted to let you know that one or more of your recent contributions&#32;to History of videotelephony have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Teahouse or the Help desk. Thanks. Denisarona (talk) 08:47, 31 March 2024 (UTC)