Convoy Effect:

• The convoy effect pertains to the sequential arrangement of processes in a system's scheduling queue, where slower processes hinder the progress of faster ones. It's like slower vehicles blocking faster ones on a road.
• For instance, in a computing system using first-come-first-served (FCFS) scheduling, longer processes occupying resources may delay the execution of shorter, quicker processes, causing a traffic jam-like effect.

Starvation:

• Starvation, on the other hand, results from the CPU's bias towards certain processes, where high-priority tasks continuously receive attention, leaving lower-priority tasks waiting indefinitely. It's akin to people cutting in line for food, leaving others hungry.
• In a priority-based scheduling system, low-priority tasks might be starved of resources as the CPU consistently prioritizes high-priority tasks, leading to unfair resource allocation.

In simpler language Convoy Effect is slower processes hold up faster ones due to their order in the queue, whereas Starvation is CPU's favoritism towards high-priority tasks leaves low-priority ones waiting indefinitely.