That's a great question, it took me a while to find the method that worked for me.
At first, I tried to write down everything that they say and what's on the slides whilst they say it on pen and paper, but I couldn't keep up with the writing speed. I tried typing everything on the slides and what they said whilst they say it but I couldn't focus on my typing whilst focussing on the lecture itself. I tried just focussing on the lecture and then writing everything afterwards, which was easier in a way but it took wayyyyyy too much time.
What I found works best for me, is something in between. I have one rough notebook, which during the lecture I write down anything important (not everything) that is said verbally but isn't on the slides, and I have one nice notebook which I write down the important stuff (not everything again) from the slides in my own words + the important stuff from the rough notebook. I learnt that taking notes
after the lecture meant I understood the content better, which meant I could make better, more efficient notes. I learnt to try to
summarise the content in a way I understood, writing down key words and definitions and important concepts, and not
copying 100% of what was on the slides. So by writing down the verbal content during the lecture and then summarising after the lecture, I could both pay attention during the lecture, and use the summarising after the lecture as a revision tool to reinforce what I just learnt by writing it succinctly in my own words.
However, everyone learns and works differently. I've got some friends that can just listen to the content and know it all, some that can type at the speed of sound, some that don't even come to lectures and watch the recordings on 2x speed and can learn enough from that. Also, every lecturer teaches differently, so you do need to adjust how you learn to each lecturer.
About the MacBook, I've answered a very similar question
here which might help! Yes a MacBook would be totally be fine, I'd recommend having a larger screen for your room (its nice being able to splitscreen the IDE and Chrome for instance). 8GB will be enough, but if you can get 16GB it won't hurt and it'll certainly mean you won't need to worry about performance. I have a Lenovo IdeaPad 8GB RAM 256GB SSD, which has been perfectly fine so far! I do sometimes have to keep on top of the storage and delete old stuff and watch how much stuff I have open at once. Like I say in the other thread, the department has a lot of PCs on campus which are incredible, so if you do need to use something more powerful they are always there to use.
Happy to help, any other questions feel free to ask them 😊
Joshua
3rd Yr CompSci Rep