What is the difference between Administration, Personnel Management and Human Resource Management?

Administration: 

Administration could includes all aspects of the business.

Personnel Management:

Personnel management is a part of HR that directly deals with personnel. 

HR Management:

Manages all departments of HR. 

Administration: Administration could includes all aspects of the business.

and Personnel Management: is a  a part of HR that directly deals with personnel. 

1) Personnel administration is a British concept whereas personnel management is an American concept.2) in personnel administration policies related to hr are framed whereas in personnel management those policies are executed/ implemented.3) personnel administration is a top level function whereas personnel management is middle and lower level function.4) personnel administration is a thinking function whereas personnel management is a doing function.5) basically personnel administration term is used in govt. Sectors whereas personnel management term is used in private organisations.

Administration deals with coordinating all activities of an organization/business.that means monitor and control each and every aspect of the business/organization for achieving company mission vision etc

Talking about Personal management and Human resource management,basically there is no much difference.personnel management is a systematic approach and hrm is strategic approach.both are inter related and like mission and vision

The difference between "personnel" and "human resources" might be lost on most people. But HR professionals know the difference, especially those who have gone through the transition. Decades ago, personnel managers handled staff-related administrative functions and relations between employees and management. Today's HR managers have broader, more strategic responsibilities. They recruit and develop staff as an invaluable resource for employers.