Final answer:
True, Most mid-size firms use payroll systems that employ real-time data processing to ensure accurate and efficient payroll calculations.
Step-by-step explanation:
It is true that most payroll systems for mid-size firms use real-time data processing. Real-time data processing allows these systems to handle transactions and payroll calculations instantaneously, ensuring that employees' pay is calculated accurately and efficiently as their time worked and other variables are entered into the system. Modern payroll systems tend to be automated and use software that integrates with time-tracking and human resources information systems, streamlining the payroll process.