'basic computing'. To me being old school that does not equate to using a computer for browsing or similar, to me computing in the true sense is the act of calculating something, adding it up, multiplying it, or doing more complex math functions or programming or other functions. You have quantified that you don't mean finding the next prime number etc. etc., but in my book using a computer as a basic internet machine, or word processor doesn't really equate too computing albeit I realise the definition seems to have diluted somewhat over the years. (excuse the pun and tic)
Many people use the phrase "basic computing" to mean simple needs running applications that don't require a lot of memory or higher performance CPUs. Let me know if you need some examples.
Many MR readers here have recently given examples of 8 GB entry level Apple computers meeting their needs just fine.
If your computing needs are more complex, the good news is you can have your Apple computer delivered with more memory by simply paying for it.