1. Custom SoftwareSoftware developed specifically to meet the unique needs of an individual or organization. It is tailored for particular tasks or business processes.2. Language Processor SoftwarePrograms that translate code written in programming languages into machine-readable instructions. Examples include compilers, interpreters, and assemblers.3. General Purpose SoftwareSoftware designed for a wide range of users and tasks, such as word processors, spreadsheets, and web browsers. It’s not specialized for any particular industry.4. FirmwareSoftware embedded in hardware devices that provide low-level control for the device’s specific hardware. It acts as the interface between hardware and higher-level software.