Sockets & plugs
Taiwan uses 110V, 60Hz with sockets and plugs Type A and Type B.
Sockets/plugs in Taiwan are completely different than in Malaysia so you will need an adapter.
Frequency difference (50 Hz in Malaysia vs 60 Hz in Taiwan) is generally not a problem - almost all items (except some types of clocks) will work on both and you shouldn't worry about it.
Although Taiwan uses 110V (which is different voltage than in Malaysia) you probably won't need a converter if you use recent devices and appliances because they all work worldwide automatically.