Software testing interview questions: How many types of software are there?

How many categories of software are there?

According to different functions, computer software can be roughly divided into four levels:

1. The closest thing to computer hardware is some small software.They implement some of the most basic functions and are usually "hardened" in a read-only memory chip, hence the name firmware.

2. System software includes operating system and compiler software.System software and hardware together provide a "platform".They manage and optimize the use of computer hardware resources.

3. Support software.Including graphical user interface, software development tools, software evaluation tools, database management systems, middleware, etc.

4. There are the most types of application software, including office software, e-commerce software, communication software, industry software, game software and so on.

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