How many operating systems are there in the world? Brief Introduction

Types of Operating Systems

At present, there are a wide variety of operating systems, and it is difficult to use a single standard for unified classification.
Based on the operating system environment and the job processing method, it can be divided into batch processing systems (MVX, DOS/VSE), time-sharing systems (WINDOWS, UNIX, XENIX, Mac OS), real-time system (iEMX, VRTX, RTOS, RT Linux );
Based on the number of supported users, it can be divided into single users (MSDOS, OS/2), multi-user systems (UNIX, MVS, Windows );
According to the hardware structure, it can be divided into network operating systems (Netware, Windows NT, OS/2 warp), distributed systems (Amoeba), multimedia systems (Amiga) and so on.
The five types of operating systems are: batch processing, time-sharing, real-time, network, and distributed.

CP/M
CP/M is actually the first micro-computer operating system, and has the privilege of commanding hosts, memory, drums, tapes, disks, printers, and other hard devices. By controlling the program and data on the bus, the operating system executes instructions ......
Lead designer: Dr. Gary Kildall
Year and month: 1974 >>>>> details

MS-DOS
The DOS system was developed for IBM personal computers by Microsoft in 1981, namely, MS-DOS. It is an operating system for a single user and a single task. From 1985 to 1995, DOS dominated the operating system.
Designer: Tim Paterson
Year and month: 1981 >>>>> details
Feature
Convenient File Management
Excellent peripheral support

Small and flexible
Numerous applications

Windows
Windows is an operating system designed for PC and server users. Its first version was released by Microsoft in 1985 and eventually won the monopoly of the world's personal computer operating system software. All recent Windows operating systems are completely independent.
Main Design: Microsoft
Year and month: 1985 >>>>> details
Feature
Gui
Multi-user, multi-task

Good network support
Outstanding multimedia functions

Good hardware support
Numerous applications

Unix
Unix is a time-sharing computer operating system. 1969 was born in the AT & TBell lab. Since then, its superiority has become an unstoppable occupation of the network. Most important network links are Unix structures.
DESIGN: AT & TBell lab
Year and month: 1969 >>>>> details
Feature
Point network and system management
High Security

Communication
Connectability

Internet
Data security

Manageability
System Manager

Ignite/UX
Process Resource Manager

Linux
Simply put, Linux is a Unix clone operating system that is compatible with most Unix standards in the source code. It is an operating system that supports multiple users, multi-process, multi-thread, real-time, and stable.
Designer: Linus Torvalds
Year and month: 1991 >>>>> details
Feature
Point free
Fully compatible with POSIX 1.0 standards

Multi-user, multi-task
Good Interface

Rich network functions
Reliable, secure, and stable performance

Multi-process, multi-thread, good real-time performance
Supports multiple platforms

FreeBSD
FreeBSD is an advanced bsd unix operating system developed and maintained by many people. Outstanding features FreeBSD provides advanced networking and load capabilities for superior security and compatibility.
DESIGN: Berkeley School, California
Year and month: 1993 >>>>> details
Feature
Point multitasking
Multi-user system

Powerful network functions
Strong Unix compatibility

Efficient Virtual Memory Management
Convenient development functions

Mac OS
Mac OS is an operating system running on Apple's Macintosh series computers. Mac OS is the first graphic user interface that has been successful in the commercial field. The latest version is Mac OS X 10.3.x.
Design owners: Bill Atkinson, Jeff Raskin and Andy husky
Year and month: 1984 >>>>> details
Feature
Point multi-platform compatibility mode
Prepare for security and service

Use less memory
Multiple development tools

Palm OS
Palm OS is a 32-bit embedded operating system for handheld computers. The combination of Palm OS and synchronization software HotSync can synchronize the information on the handheld computer and PC, and extend the desktop function to the handheld.
Main Design: 3Com's Palm Computing department
Year and month: 1996 >>>>> details
Feature
Little
Rich Functions

Multiple Functions
Integration
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