What is the difference between administration and operations in an organization?

Different organisation define administrations and Operations as per their organisational requirements and also to some extent goes by traditions. The activities covered under the two terms are as follows:

Administration:

1. Management of office Assets including IT equipment and vehicles, 
2. Management of Facilities including safety and security
3. Management of office communication( Mail room, Telephones,) Canteen etc.
4. Management of travel, hotel booking, event management

Operations: Operations is defined in much broader category  and includes the following.

1. Administrations as noted above.
2. Procurement Management
3. Finance, Accounts  and Budget
4. Human Resources Management
5. Management of Information Technology.

Based on size and complexity of the organisation, Operations  could be managed by senior manager and five activities under operations are managed by individual managers. In some organizations operations and Administration are synonymous