Difference between managerial and non-managerial roles?

Difference between managerial and non-managerial roles?
Managerial Employees

In larger organizations, management is often broken down into three levels -- upper management, middle management and lower management. Upper management includes top executives who are highest on the management hierarchy. Middle management includes department managers and division managers, who are the communication link between upper and lower management. Lower management includes first-line managers and supervisors, who are on the bottom of the management hierarchy. In smaller organizations, there is often only one level of management between the non-managerial employees and the organization's leaders. Smaller organizations also generally have fewer managers than larger organizations.Non-Managerial Employees

Non-managerial employees are placed into categories according to their job functions. In an office environment, non-managerial job titles may range from administrative assistant to payroll specialist to computer technician.