What kind of computer should you buy?
This is a significant investment. You want to ensure you spend well and what you buy will last a long time. You want it to do what you bought it for and do it reliably, well and responsively. Most people later discover things they want to do with it that they did not anticipate when they bought it. So, buying higher power and capacity is likely a good strategy.
There are two types of computers: Notebook (AKA Laptop), and Desktop. There are two kinds of environments: Microsoft Windows-based, and Apple. There are 1.5 billion computers in the world. 94% are Microsoft Windows-based. That’s a big clue. Do not consider a notebook computer unless you really need to use your computer in different places. They cost more, do not last as long, and are slower. Apple computers are completely proprietary. Consequently you will pay a lot more for the computer and everything to do with it.
So, if you are going to buy a Windows-based computer, you have a lot of choices. You may have read or been told that they are all about the same. That is simply not true. There are vast differences! The worst will give you slow performance and not be satisfactory to you for half as long. The best will be satisfactory to you for years to come. The most interesting part about this is that there is little to no difference in the price you will pay. There is a lot to know about what is and should be inside a computer. You need to find someone who you can trust to guide you. Beware of people who think they know a lot and do not.
“Computer manufacturers” are really assemblers. They buy components from a pretty limited variety of real manufacturers. Each component manufacturer has low cost all the way to high cost products. Some are much better buys than others. So choosing the right components is really important. The components must work together to be most effective and even if just one of them is not right, your new computer will never work well, and it is unlikely an upgrade can fix the problem.