The latest articles on DEV Community by Mounira Say (@mounira_say_13e6315265220). https://dev.to/mounira_say_13e6315265220 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F1833269%2Fadd8c408-8d9d-4856-b563-4c31bdae3cc8.jpg https://dev.to/mounira_say_13e6315265220 en Mounira Say Thu, 26 Sep 2024 19:41:21 +0000 https://dev.to/mounira_say_13e6315265220/popular-interview-question-what-is-the-difference-between-process-and-thread--4098 https://dev.to/mounira_say_13e6315265220/popular-interview-question-what-is-the-difference-between-process-and-thread--4098 <p>To better understand this question, let's first take a look at what is a program.A program is an executable file containing a set of instructions and passively stored on disk. <br> One program can have multiple processes.For example, the chrome browser creates a different process for every single tab.<br> A Process means a program is in execution.When a program is loaded into the memory and becomes active, the program becomes a process.The process requires some essential resources such as registers,program counter,and stack.</p> <p>A Thread is the smallest unit of execution within a process.</p> <p>Main differences between process and thread:</p> <ul> <li>processes are usually independent,while threads exist as subsets of a process.</li> <li>Each process has its own memory space.Threads that belong to the same process share the same memory. -A process is a heavyweight operation. It takes more time to create and terminate. -Context switching is more expensive between processes. -Inter-thread communication is faster for threads.</li> </ul> webdev news architecture interview