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<>一、构成
<>计算机软件按照其功能划分为系统软件和应用软件
<>应用软件:如原神、微信…
<>系统软件:DOS,Windows,Linus,Unix,Mac,Android,IOS.
DOS
:主要是一种面向磁盘的系统软件,说得简单些,DOS就是人给机器下达命令的集合,是存储在操作系统中的命令集,有了DOS,我们就可以更容易理解怎么给机器下命令,不必去深入了解机器的硬件结构
Linus
:使用者不仅可以直观地获取该操作系统的实现机制,而且可以根据自身的需要来修改完善Linux,使其最大化地适应用户的需要。正是由于这一点,来自全世界的无数程序员参与了Linux的修改、编写工作,程序员可以根据自己的兴趣和灵感对其进行改变,这让Linux吸收了无数程序员的精华,不断壮大。
Unix:一个强大的多用户、多任务操作系统,支持多种处理器架构
Mac,Android,IOS:IOS系统是苹果公司开发的移动操作系统,是 iPhone 、 iPad 和 iPod touch 上的系统;Mac OS
是苹果公司为Mac系列产品开发的专属操作系统。与 IOS 系统相对的是 Android 系统,与Mac OS 相对的是Windows 系统。
<>二、开发和软件开发
<>开发:指开发软件的过程
<>软件开发:指开发软件的一些软件,eg:dev c++,idea…
<>三、人机交互
人机交互包括图形化界面和命令行
<>图形化界面:类似前端
<>命令行:类似后端