"Computer operating System" Learning Note 1

1. Configure the main target of the operating system on the computer

Convenience, effectiveness, extensibility, openness.

2, the role of the operating system

OS as the interface between user and computer hardware system;

Os as the manager of computer system resources;

Resources: processors, memory, I/O devices, files (data and programs).

The OS primarily implements effective management of these four types of resources.

The OS realizes the abstraction of computer resources;

OS is a collection of multi-layered software on computer hardware, which not only enhances the function of the system, but also hides the detailed details of the hardware operation, and realizes the abstract model of the computer hardware operation.

3. OSs

Single-channel batch processing system

Multi-channel batch processing system

Ctss

Real-time Systems

This article is from the "P6xos" blog, make sure to keep this source http://p6xos.blog.51cto.com/6221518/1690438

"Computer operating System" Learning Note 1