Multithreading piecemeal consolidation

• Synchronization (Synchronous) is coordinated step, for running predetermined priorities. Such as: Are you finished, I say. "Same" word literally easy to understand for the action together, it is not true, "with" shall refer to the word synergy, assist and cooperate with each other. The former can be expressed meaning is "concurrent." Then asynchronous and synchronous on the contrary, like two people walking, everyone go at their own pace, the pace may not be consistent.

• Wikipedia entries: the CPU round-robin scheduling , round-robin scheduling algorithm

• Synchronous, asynchronous, concurrent, parallel: B station, the second multi-thread video , 1 , 2

  • Concurrency and parallelism of difference is that a person can eat bread and three three three people while eating bread;
  • Asynchronous and synchronous : ajax query is asynchronous operation (does not return results, but you can write something in the part of the display data), the non-ajax query is synchronous operation (no result when the page is blank inoperable, after the return results to appear content other operations)