Threads and processes differ by the following: Threads require more information in their process control block than processes. Threads are expensive to initialize and execute. Threads will use all the same stack as the process they came from. Threads will take their memory from their process' memory space. Threads and processes differ by the following: Threads require more information in their process control block than processes. Threads are expensive to initialize and execute. Threads will use all the same stack as the process they came from. Threads will take their memory from their process' memory space.