Most networking discussions are a jumble of acronyms. Forget the configuration details - what are the insights? Networking is about communication Text is the simplest way to communicate Protocols are standards for reading and writing text Beneath the…

MIT Introduction to Computer Science and Programming (Lesson one ) 这篇文是记载 MIT 计算机科学及编程导论 第一集 的笔记 Lesson one : Goals of the course;what is computation;introduction to data types,operators,and variables 一 讲解课程的任务.课程目标 目标 像一个计算机科学家一样思考 都能够读写程序 tacking t…

目录 Chapter 1: Computer Networks and the Internet 1. What is the Internet? 2. The Network Edge 3. The Network Core 4. Delay,Loss,and Throughput in Packet-Switched Networks Chapter 2 : Application Layer 应用层 1.进程间交流(p88) 2.安全的传输层协议(p94) 3.Web Caching(p1…

Book Imformation : <Pratical Programming : An Introduction to Computer Science Using Python 3> 2nd Edtion Author : Paul Gries,Jennifer Campbell,Jason Montojo Page : Chapter 2.3 to Chapter 2.5 1.A type consists of two things: (1).a set of values (2).…

Book Imformation : <Pratical Programming : An Introduction to Computer Science Using Python 3> 2nd Edtion Author : Paul Gries,Jennifer Campbell,Jason Montojo Page : Chapter 1 and Chapter 2.1-2.2 1.every computer runs operating system,which it's the…

学习总结--(Introduction to Computer Science and Programming in Python--MIT) 导论 主题 重新利用数据结构来表达知识 理解算法的复杂性 程序与数据类型的抽象 不同类型的算法,搜索,排序 计算机可以做什么? 基础的工作: 执行计算(每秒十亿次计算) 记住结果 什么类型的计算? 根据程序语言来建立 你可以自己来定义作为一个程序员 计算机只知道你告诉它的…

Network Connectivity 1. Important terminologies 1) Link 设备连接的连线.Link本身既可以是有线的,也可以是无线的. 2) Node 设备.电脑,笔记本电脑,手机都可以是Node. 3) Point-to-point 连接的设备只有两个. 4) Multiple access 连接的设备两个以上.多个设备同时去存取的这样一个Link. 5) Switched Network -> Circuit Switched 通讯之前线路必须建立起来.…

1.Die Grundlage des Computers 1.1 Binärzahl in die Dezimalzahl umsetzen Bereiten nach Gewicht,dann bekommen Summe 1.2 Dezimalzahl in die Binärzahl umsetzen Durch 2 Rest bekommen,bis der Quotient 0 ist,liest man von unten nach oben Integral: Dezimale:…

ESTIMATED TIME TO COMPLETE: 18 minutes We can use the idea of bisection search to determine if a character is in a string, so long as the string is sorted in alphabetical order. First, test the middle character of a string against the character you'r…

Assume s is a string of lower case characters. Write a program that prints the longest substring of s in which the letters occur in alphabetical order. For example, if s = 'azcbobobegghakl', then your program should print Longest substring in alphabe…