What is Software?
Software is a series of instructions, data, or programs for operating computers and performing specific tasks.
Example: MS Word, MS Excel, Firefox, Chrome, Microsoft PowerPoint, Skype, etc.

There are two major types of Software:-

Generic Software:
Stand alone, sold on the open market, less expensive.Cannot accommodate future changes.
Example:Microsoft Word, Microsoft PowerPoint, Microsoft Excel

Customized Software:
For the specific customer, more expensive Can easily accommodate future changes
Example:e-commerce, Microsites, Multiple user bases.

Good Software & Bad Software:
Good software is maintained, works well, and always available.
Bad software is discarded, difficult to use, and not always available.

Different Characteristics of a Software-

Logical: A logical element rather than a physical system.

Engineered: Software is developed or engineered but not manufactured. So, it does not require any raw material for its development.

Does not “wearing out”: Once-created software never wears out. It can be used for as long as possible, and the necessary changes can be made in the same software in case of need for any update, and then it can be further used with updated features.

Intangible: Because of its non-physical nature, Software is known as an intangible asset.

Like an “Aging Factory”: Programs get old, like humans. We can't stop aging, but we can consider its causes, and we can take action to minimize its effects.