3D- Visual effect software and any 3D applications like Maya, Blender, and 3Ds Max.
2D-Pencil 2D, Adobe after effects in 2D.
3D- At least Intel Core i5 or i7 & i9
2D- Any Modern Intel Core i5
3D- For a beginner and starting with animation, you should at least 8 GB RAM. When larger projects just do upgrade to 16 GB RAM at least.
2D- 8 GB DDR3/4.
3D- A Dedicated Graphics card at least 4 GB.
2D- Integrated Graphics is enough.
We recommended an SSD drive for everyone. You will end up spending less time on a project.
As a beginner and student- 256 GB is okay.
As a professional- 1 TB HDD+256 GB SSD or full-blown SSD at least 512 GB.