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Fig 1: a screenshot from a software application. Utility software is software such as anti-virus software, firewalls, disk defragmenters and so on which helps to maintain and protect the computer system but does not directly interface with the hardware.
Types of computer software basically refers to the language or codes that are involved in various operations of a computer system. Different types of computer software of your choice are available in the market. The three main types of software are programming, system and application software.