1. A device to manage resources for performing operations in a computer system, the device comprising: a resource reservation unit to reserve resources for performing an operation specified by a user; a query unit to query the user regarding reserving additional resources in the event the operation cannot be completed within a reserved time using the reserved resources; a resumption instruction unit to cause the resource reservation unit to reserve the additional resources and continue the operation at an agreed-upon resumption fee upon receiving a resumption instruction from the user in response to the query; and the resumption instruction unit further configured to, prior to receiving the resumption instruction from the user, cause the resource reservation unit to reserve free resources and resume the operation, wherein the resumption instruction unit charges a modified resumption fee in the event the operation is resumed prior to receiving the resumption instruction.