Final answer:
Blocked processes are waiting for some event, while deadlocked processes cannot proceed because each process in the set is waiting for another to release a resource. Electrical power supplied to a computer's hardware is the source of energy that allows processes to run. This is essential for the functioning of both blocked and deadlocked processes.
Step-by-step explanation:
When discussing the concepts of blocked and deadlocked processes, we are dealing with the domain of operating systems within computers and technology. A blocked process is one that is waiting for some event to occur before it can proceed with its execution. An example of this could be a process waiting for an I/O operation to complete.
On the other hand, a deadlocked process involves a set of two or more processes, each of which is waiting for the other to release a resource that it needs to continue, creating a situation where none of the processes can proceed.
The input of energy in this context refers to how processes in a computational system receive the necessary power to perform tasks. (a) The source of the energy input into the system is typically the electrical power supplied to the computer system's hardware.
(b) The interaction between the system and its environment that provides that input of energy is the conversion of electrical energy into computational work, allowing processors to execute instructions and thus, run processes. Without this energy input, neither blocked nor deadlocked processes could execute even if the respective waiting condition or resource lock issue was resolved.