Terminal apparatus, data providing system, data providing method, and computer program

A computer program product embodied in a computer readable medium, the computer program product being usable with a data providing system comprising:

• a terminal apparatus comprising:
• a communication unit that sends and receives data;
• a storage unit that stores the received data;
• and
• a restoring unit that restores the storage unit at a given timing to the state at an arbitrary point of time,
• the terminal apparatus using the data stored in the storage unit to execute installed software;
• a server that communicates with the terminal apparatus and stores data used for the software;
• and
• a restoration control apparatus that communicates with the terminal apparatus and disables the restoration operation of the restoring unit,
• the computer program product containing computer executable instructions that cause:
• the restoration control apparatus to perform a transmission process of transmitting a disable signal to the terminal apparatus when the restoration operation of the restoring unit is disabled,
• the terminal apparatus to perform a disable process of disabling the restoration operation of the restoring unit when the disable signal is received, and a request process of requesting the data from the server after the restoration operation is disabled in the disable process,
• the server to perform a transmission process of transmitting the data requested by the terminal apparatus to the terminal apparatus, and
• the terminal apparatus to perform an enable process of enabling the restoration operation of the restoring unit when the data is received from the server, and a restoration process of restoring at an arbitrary timing the storage unit to the state at a point of time when or after the restoring unit is enabled.

A data providing method being usable with a terminal apparatus comprising:

• a requester that requests data used for installed software from an external apparatus;
• a receiver that receives the data requested by the requester;
• a storage unit that stores the data received by the receiver;
• a restoring unit that restores the storage unit to the state at an arbitrary point of time;
• and
• a restoration controller that enables or disables the restoration operation of the restoring unit,
• the method comprising:
• causing the storage unit to store the data that is requested by the requester and received by the receiver after the restoration controller disables the restoring unit,
• causing the restoration controller to enable the restoration operation of the restoring unit after the data received by the receiver is stored in the storage unit, and
• causing the restoration controller to restore the storing unit to the state at a point of time when or after the restoration controller enables the restoration operation.

A computer readable medium storing a computer program being usable with a computer that comprises:

• a requester that requests data used for installed software;
• a restoring unit that restores a storage unit that stores the data that is requested by the requester and acquired to the state at an arbitrary point of time;
• and
• a restoration controller that enables or disables the restoration operation of the restoring unit,
• the computer program for causing the computer to perform:
• a storing process of storing the data that is requested by the requester and received by the receiver after the restoration controller disables the restoration operation of the restoring unit,
• an enabling process of enabling the restoration operation of the restoring unit after the data received by the receiver is stored in the storage unit, and
• a restoration process of restoring the storing unit by using the restoring unit to the state at a point of time when or after the restoration controller enables the restoration operation.