What Is Apache Spark?
Apache Spark is an open-source distributed computing system designed for large-scale data processing. It was developed at the University of California, Berkeley's AMPLab, and is now maintained by the Apache Software Foundation.
Spark provides a unified framework for processing and analyzing large datasets across distributed computing clusters. It allows developers to write distributed applications using a simple and expressive programming model based on Resilient Distributed Datasets (RDDs). RDDs are an abstraction of a distributed collection of data that can be processed in parallel across a cluster of machines.