Linus Torvalds like to be a nice person and curse less and encourage people to grow rather than telling them they are idiots. I'm sorry – I tried, it's just not in me." His attitude, which Torvalds considers necessary for making his point clear, has drawn criticism from Intel programmer Sage Sharp and systemd developer Lennart Poettering, among others. On Sunday, September 16, 2018 the Linux Kernel "Code of Conflict" was suddenly replaced by a new "Code of Conduct" based on the Contributor Covenant. Shortly thereafter, in the release notes for Linux 4.19-rc4, Linus apologized for his behavior, calling the personal attacks
Operating system existing hardware production. MCP is still in use today in the Unisys ClearPath/MCP line of computers. UNIVAC, the first commercial computer manufacturer, produced a series of EXEC operating systems. Like all early main-frame systems, this batch-oriented system managed magnetic drums, disks, card readers and line printers. In the 1970s, UNIVAC produced the Real-Time Basic (RTB) system to support large-scale time sharing, also patterned after the Dartmouth BC system. General Electric and MIT developed General Electric Comprehensive Operating Supervisor (GECOS), which introduced the concept of ringed security privilege levels. After acquisition by Honeywell it was renamed General Comprehensive Operating System (GCOS).