计算机组成原理 Chap.1 计算机系统概述

Operating System Chap.8 Deadlock

Operating System Chap.7 Application of Semaphores

Operating System Chap.6 Synchronization based on Busy Waiting

Operating System Chap.5 IPC for data passing

Operating System Chap.4 Interrupts, Exceptions, and Signals

Operating System Chap.3 Processes & Threads

Cryptography-Chap.4 Block cipher

Operating System Chap.2 CPU Mode & OS Structure

Operating System Chap.1 Inroduction