M1 MacBook Air has 115.44 gigabytes of total storage
My school gave me an M1 MacBook Air (but over the course of me being there my parents pay it off, so when I graduate it will be mine to own). It is the sub-base model, as it has 8 gigs of ram and 7-core gpu, but instead of 256 gigs of storage, it only has exactly 115.44. Under the hard disk icon in the storage section of "About This Mac" it says it as 121 GB of Flash Storage. First, why is there this discrepancy, and then also why do I have such little storage? It's very annoying, and I know that the SSDs are not upgradable, but I still want to know. How do you even get a MacBook with that little storage? I heard that schools can get half storage for 100 dollars less (so each MacBook is $900 instead of $1000, but I'm not sure). I'll include a picture for clarity. Is there any way (and I'm half-joking) I could just solder an SD card into the computer to get more storage? I really don't like having to sort through my storage every few days to make sure this little teeny tiny SSD doesn't fill up. Thanks for any help anyone can give (I also thought that MacBooks contained 2 128 gig NAND chips, so how does it make sense that I have a 121-gig chip in mine?)
MacBook Air Apple Silicon