What Does Programming Concurrency Mean?
Concurrency — in the context of programming — is the ability for a program to be decomposed into parts that can run independently of each other.
Techopedia Explains Programming Concurrency
Programming Concurrency is the ability of an algorithm or program to run more than one task at a time. The concept is similar to parallel processing, but with the possibility of many independent jobs doing different things at once rather than executing the same job.