书中给出了一张真值表 p q p→q T T T T F F F T T ? ? ? F F T 为什么前提错误 ，结论正确，整个就是正确呢？ 书中给出了一个例子，“If I am elected, then I will lower taxes.” 如果政治家当选了，选民会期望他减税。更进一步的说，如果政治家没有当选，选民不会期望这个人减税，所
1.8.1 File-System Management--A file is a collection of relatedinformation defined by its creator.1.8.3 Caching--It is copied into a faster storagesystem, the cache, on a temporary basis.--The movemen
1.5 Operating-System Operations--Modern OS is interrupt driven.1.5.1 Dual-Mode Operation--To ensure the proper execution of the OS,the OS code and the user’s code must be distinguished.--User Mode and
1.2.1--Initial program to run, this called bootstrapprogram.--It initalizes all the aspects of system,from CPU registers to device controllers.--The bootstrap program must locate andload into memory t
我想我必须学会写东西。
Copyright © 2005-2025 51CTO.COM 版权所有 京ICP证060544号
