1.1计算机的软硬件概念
计算机系统由**“硬件”和“软件”两部分组成*。
硬件是指看得见摸得着的各种电子元器件。如主机、键盘、鼠标等。
软件看不见摸不着,但在逻辑上,我们确实可以感知到它的存在，它由人们事先编制的具有某种功能的程序组成。比如操作系统、编程语言等。
计算机的软件通常又分为:系统软件和应用软件。
系统软件:又称为系统程序,主要用来管理整个计算机系统，监视服务,使系统资源得到合理调度。它包括:操作系统、语言处理程序、数据库管理系统、网络软件、服务程序等。
应用软件:又称为应用程序,它是用户根据需要事先编制的程序。比如QQ、微信等。
DSQC639
DSQC639
1.1 Software and Hardware Concepts of Computers
The computer system consists of two parts: * * “hardware” and “software”.
Hardware refers to various electronic components that can be seen and touched. Such as the host, keyboard, mouse, etc.
Software cannot be seen or touched, but logically, we can indeed perceive its existence. It is composed of pre programmed programs with certain functions. For example, operating systems, programming languages, etc.
Computer software is usually divided into system software and application software.
System software: also known as system programs, mainly used to manage the entire computer system, monitor services, and ensure reasonable scheduling of system resources. It includes operating systems, language processing programs, database management systems, network software, service programs, etc.
Application software: also known as an application program, it is a program that users prepare in advance according to their needs. For example, QQ, WeChat, etc.
DSQC639
DSQC639
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