I'd recommend Investopedia to learn more about those terms. As someone with a robotics background, I used Investopedia extensively when I was taking Machine Learning for Trading (would highly recommend the course as well: https://www.udacity.com/course/machine-learning-for-trading-...) if that's something you're interested in.

One more nice thing about Investopedia: they have recently restructured their newsletter ("one term a day") to include references to current events.

That is really nice because it not only gives you something to learn but it also puts it in context.

I was curious so I found it: https://link.investopedia.com/join/53o/00-house-tod

They are terms relating to technical analysis, an attempt to determine future price action from past price action. Many traders look down on technicals as an attempt to read tea leaves while ignoring more important information. Myself included. Still, technical analysis can on occasion be a useful tool when making tactical decisions because people do watch certain levels, reversion and breakouts are real phenomena, and any widespread trading approach is at times a self-fulfilling prophecy.

I think you’re right about rsi, macd, etc but sma, ema, alpha, beta and sharpe are essential to look at before buying any stock imo

They are technical indicators: Simple moving average, Relative strength index, Moving Average Convergence-Divergence, Average Directional Index, Bollinger Bands.

You can google each one, there is usually a decent explanatory article

The are all acronyms for functions on time series trade data. Investopedia has definitions without a lot of fluff if you want to learn them.