# 1.1 Networked Applications

可靠的双向字节流(Byte Stream Model)

## Byte Stream Model

![Byte Stream Model](https://3539652405-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M5jt9PO48yKdfb1HvPX%2Fsync%2F3c82ef7e1f6cb091e122335c3ad684a88cd2347e.png?generation=1588508949377615\&alt=media)

## 几个例子：

### World Wide Web(HTTP)

* 以文档为中心的程序通信方式
* 人类可读的

### BitTorrent

![BitTorrent](https://3539652405-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M5jt9PO48yKdfb1HvPX%2Fsync%2Ff78336ab836f75a9bea6838b1ef4b135c194bac6.png?generation=1588508949207539\&alt=media)

* 点对点模型

### Skype

![Skype](https://3539652405-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M5jt9PO48yKdfb1HvPX%2Fsync%2Fb74c9532686afb4ee75ead482755887fdde87166.png?generation=1588508949181368\&alt=media)

* two Client
