So a stable release is too unstable for them? And now the first thing users will have to do is after install, apply all the bug fix packages to bring it to 14.04. But that will bring no unstability concerns? Or will they just not patch it and expose themselves to the bugs in the name of stability?
That's incorrect. The way you apply bug fixes to 12.04 LTS is by installing the bug fixes, not by moving to 14.04. The whole point is that 12.04 LTS continues to get updates for 5 years.
It's not that it's unstable in an absolute sense – but it is a migration if they started building this prior to 14.04 release (highly likely). And migrations are always time-consuming and risky, even if it's a migration to an otherwise stable platform.
The hardware was not quite standardized at that time so CP/M had a layered structure consisting of a BIOS, BDOS and the command line processor. The BIOS was the hardware abstraction layer and was ported to the specific combination of hardware. The BDOS provided the file system and the command line processor provided a standardized interface. On top of this you would run the BASIC interpreter as an application.
Right, but while BASIC is running, the command line processor isn't. So if you want to run a command... what then? Presumably the BASIC has to reimplement it. I guess that's the point. Having this layered approach is valuable, but having a separate command processor, perhaps less so.
(I never used CP/M but I used to have an Acorn BBC Micro and that had the command line processing built in to the OS, in its equivalent of the BIOS, I suppose to work around this very issue. All an application needed to do was get a string from somewhere, then pass it to the appropriate OS routine. So many programs ended up effectively having the standard command processor embedded, in addition to whatever interface they might themselves support. Though obviously the user had to be careful not to do anything silly like load a new program that overwrote the running program or overwrote their data. Different times.)
The trick involves writing sectors (of size 4K, say, and it can depend on the SSD model) sequentially in aligned blocks (of size 1M, say, but it can depend on the SSD model) so that the SSD firmware that can erase one physical block at a time can handle it efficiently. Especially in 2010.
More than 2 dozen countries, including China, tax their citizens and permanent residents on their worldwide income. However, as a practical matter only the U.S. actually attempts to enforce its income tax laws on a worldwide basis.
The U.S. and China both offer an expatriate exemption (first $100k in income for the US) and foreign tax credits against U.S./China taxes for local country income taxes paid.
