A terminal device may include: a communication interface to receive, from a server via a network, a file for updating software in a memory device coupled with the terminal device, and a software update table that includes data regarding one or more performance values and one or more time values indicative of one or more lengths of time taken to update the software using the file; a processor to obtain data regarding a performance value of the memory device, select, from the software update table, one of the one or more performance values based on the performance value of the memory device, and obtain, from the software update table, a time value associated with the selected performance value; and an output device to provide an output corresponding to the obtained time value. Each performance value is associated with one of the one or more time values, respectively.