Program vs Process vs Thread
Explore the fundamental differences between programs, processes, and threads in Java. Understand how threads share resources within a process and the challenges of concurrent execution. This lesson prepares you to manage thread synchronization and avoid common multithreading pitfalls often discussed in senior engineering interviews.
We'll cover the following...
Program
A program is a set of instructions and associated data that resides on the disk and is loaded by the operating system to perform some task. An executable file or a python script file are examples of programs. In order to run a program, the operating system’s kernel is first asked to create a new process, which is an environment in which a program executes.
Process
A process is a program in execution. A process is an execution environment that consists of instructions, user-data, and system-data segments, as well as lots of other resources such as CPU, memory, address-space, disk and network I/O acquired at runtime. A program can have several copies of it running at the same time but a process necessarily belongs to only one program.
Thread
Thread is the smallest unit ...