二、实现系统时钟 系统时钟（system tick）概念 系统时钟是内核需要的唯一中断（IRQ0），系统时钟每毫秒产生一个中断，当发生中断时内核在ISR中累计，到1000的倍数就是过...
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System tick timer 系统节拍定时器
system clock tick 系统时钟周期
ID-based tick booking system 实名购票
An operating system typically consists of a set of function calls, or software interrupts, and a periodic clock tick.
一个操作系统典型地由一个函数调用集、软件中断和定期时钟周期组成。
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Bureaucratic systems and processes were put in place to make the system tick over like a boring clockwork machine.
FORBES: Gasp! Machines Still Can't Think!
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