Final Answer:
A system fault refers to a hardware, software, or network error that occurs during transaction execution in a computer system.
Step-by-step explanation:
Definition of System Fault:
A system fault encompasses errors in hardware, software, or network components of a computer system. These faults can disrupt the normal execution of transactions.
Types of System Faults:
System faults can manifest as hardware crashes, software errors, or issues within the network infrastructure. In the given example, hardware crashes are highlighted as an example of a system fault.
Media Failures and Hardware Crashes:
The statement specifies that hardware crashes, often associated with media failures like main memory issues, are a common manifestation of system faults.