Andrew's informative speech will his audience understand how to upgrade and replace the hard drive in their computers. what type of topic has he chosen?

The topic was a task. A task is a type of topic that teaches the audience how to do something, usually in a step by step fashion. This kind of topic answers the question "how?", and it is aimed to provide detailed information to achieve a specific goal. In this case the speech is telling the audience how to upgrade and replace the hard drive in their computers.

Abraham lincoln gave his 2nd inaugural address on march 4, 1865.-as lincoln prepared to speak, the civil war was drawing to a close.