n-Track Frequently Asked Questions

Im a beginner and I have a standard desktop/laptop computer and a stock computer mic, could you please recommend what additional hardware I would need to purchase in order record guitar and vocals?

You should be able to obtain decent results with the computer's builtin soundcard and standard computer mic.
However builtin soundcards are typically designed for games or communication uses and are not usually very good at audio recording.
For better quality results you can get a soundcard specifically designed for audio recording and a good quality mic.
You can find suggestions for mics here and for soundcards here