*3: Multi-thread: A given function of the program is individually configured (thread); two or more threads can be executed simultaneously. *4: Multitaski

*3: Multi-thread: A given function of the program is individually configured (thread); two or more threads can be executed simultaneously. *4: Multitasking: A method that enables a computer to simultaneously execute two or more programs by switching the CPU to each of the programs at certain intervals. It's funny, the definitions we take for granted now.