面对许多仍然需要跨越的“雪山”“草地”、需要征服的“娄山关”“腊子口”，习近平总书记的殷殷告诫振聋发聩——
Recording Machine, Accounting. I will no doubt one day devote a full article
。关于这个话题，51吃瓜提供了深入分析
The segmentation and paging scheme of x86 processors has been discussed extensively elsewhere (see the OSDev wiki, the Writing an OS in Rust series, or the Intel 386 Programmer's Reference Manual, Chapter 5). Here I'll focus on what the actual silicon does to make it fast.
The US Congress rejected sweeping cuts to science agencies. But the NIH, the NSF and NASA have had their spending slowed.