1, Unix-like system

The so-called Unix-like family refers to a wide variety of OS, including System V, BSD, Linux and so on. Since Unix is a registered trademark of Open Group, it refers to the operating system that abides by the behavior defined by this company. Unix-like usually refers to an operating system that contains more functions than the original Unix.

Unix-like systems can run under a variety of processor architectures, and have a high utilization rate on server systems, such as workstations in universities or engineering applications.

2. Microsoft Windows software

Microsoft Windows series operating system is a graphical operating system based on MS-DOS designed by Microsoft for IBM machines. Nowadays, Windows systems, such as Windows 2000 and Windows XP, are all created in the modern Windows NT kernel.

The NT kernel is borrowed from OS/2 and OpenVMS. Windows can run on 32-bit and 64-bit Intel and AMD processors, but earlier versions can also run on DEC Alpha, MIPS and PowerPC architectures.

3、MacOS？

MacOS, formerly known as "MacOS X" or "OS X", is an operating system running on Apple Macintosh series computers. Mac OS is the first successful graphical user interface system in the commercial field.

The Macintosh development team includes Bill Atkinson, Jeff Ruskin and andy hertzfeld.

Starting from OS X 10.8, remove the Mac from the name and keep only OS X and version number. On June 201June 13, Apple renamed OS X macOS on WWDC20 16.

4, chrome operating system

Google Chrome OS is a lightweight, web-based computer operating system project of Google, which is based on Google Chrome's Linux kernel.

5、linux

Linux is a multi-user, multi-task, multi-thread and multi-CPU operating system based on POSIX and Unix. It can run major Unix tools, applications and network protocols. It supports 32-bit and 64-bit hardware. Linux inherits the network-centric design idea of Unix and is a multi-user network operating system with stable performance.

Second, the application software

1, office software

Document spreadsheet program slide report math program creation editor drawing program basic database file management system text editor. For example: WPS.

2. Internet software

Instant messaging software e-mail client web browser client download tool. For example: Baidu network disk, Thunder.

3. Analysis software

Computer Algebra System Statistical Software Digital Calculation Computer Aided Engineering Design. For example: MySQL.

4. Collaboration software

Collaborative product development software. For example: nailing.

5. Business software

Workflow analysis of accounting software enterprises, customer relationship management, logistics, enterprise resource planning, supply chain management, product life cycle management. For example: Kingdee financial software.