C# Different Useful Interfaces for Various Tasks

Here, the intefaces are related to one of the following things: Resource Management, Collections , Enumeration, Conversion & Formatting, Comparison & Equality or Asynchronous Tasks.

Interface	What It Does
IDisposable	Releases unmanaged resources manually (Dispose()).
IAsyncDisposable	Async cleanup (DisposeAsync()).
IEnumerable	Supports non-generic iteration using foreach.
IEnumerable<T>	Generic iteration.
IEnumerator	Controls iteration manually.
IEnumerator<T>	Generic enumerator.
ICollection	Basic collection operations.
ICollection<T>	Generic collection.
IList	Ordered collection.
IList<T>	Generic list.
IReadOnlyCollection<T>	Read-only collection.
IReadOnlyList<T>	Read-only indexed list.
IDictionary	Key-value storage.
IDictionary<TKey, TValue>	Generic dictionary.
IReadOnlyDictionary<TKey, TValue>	Read-only dictionary.
ISet<T>	Represents unique values.
IComparable	Defines object ordering.
IComparable<T>	Generic comparison.
IComparer	Custom sorting logic.
IComparer<T>	Generic comparer.
IEqualityComparer<T>	Custom equality rules.
IEquatable<T>	Custom object equality.
ICloneable	Creates object copies.
IFormattable	Custom string formatting.
IConvertible	Supports type conversion.
IFormatProvider	Supplies formatting information.
IAsyncEnumerable<T>	Async streaming with await foreach.
IAsyncEnumerator<T>	Enumerator for async sequences.
IServiceProvider	Dependency injection service resolution.
IObservable<T>	Push-based notifications (Observer pattern).