Besides keylogger, there is also a term of screenshot. It is part of keylogger that can be used to record the visible items displayed on the monitor of the computer. Screenshot can also be used to demonstrate the program or problem that may be happened when display the visible items. On the other word, we can say that it is used to capture and show what things that we have done in the computer. All of the things will record on the screenshot, and we can see the record of things that we have done before.
The other software is hidden camera. It is a kind of tool that can be used to watch and observe the users silently. The place of this camera is undetectable. There is no one who knows the existence of this camera. The camera can be very useful for people, because the owners can know the person who has already used the computer.