Knowledge is defined as a body of information needed to perform a task; any information that the perceiver brings to a situation. Please see also Top-down processing.
In general, knowledge refers to the understanding and awareness of a particular subject or fact. It can include both theoretical and practical understanding and can be acquired through various means such as education, experience, and research.
In philosophy and psychology, the concept of knowledge has been studied and debated for centuries. Philosophers have attempted to define and understand the nature of knowledge and have proposed various theories about what counts as knowledge and how it can be acquired. In psychology, researchers have studied the cognitive processes involved in acquiring, storing, and using knowledge, including memory, perception, and problem-solving.
In everyday language, the term "knowledge" is often used to refer to a person's understanding or expertise in a particular area. For example, someone might be said to have a lot of knowledge about history, or to be knowledgeable about computers. The term is also used in a more general sense to refer to information or understanding that is shared by a group or society, such as cultural knowledge or scientific knowledge.