I grew up calling those (save icon ones) hard disks to distinguish them from the floppy ones
This was just you. I’m also from the before-times, and was using cassettes as a storage medium before even seeing my first floppy drive. But, nobody called the ones with a sliding window “hard drives”. Diskettes, maybe, but more frequently just floppies, or 3.5 inch floppies to distinguish them from the bigger ones.
IBM PCs introduced computers with hard drives before they even switched to the 3.5 inch format. The earliest IBM PCs only had 5.25 inch floppies, often 2 drives. But the XT from 1983 came with a 10 MB drive by default, but still used 5.25 inch floppies. By the time IBM switched to 3.5 inch floppies, the hard drive was well established. That was in about 1987 with the PS/2 models.
The earliest Mac computers took a surprisingly long time to come with a hard drive. The earliest model Macs starting in 1984 came with 3.5 inch drives and no hard drive. It wasn’t until 1987 that Macs started coming with hard drives. So, I could maybe imagine someone who used macs not knowing what a hard drive was during that 3-year window. OTOH, someone who only used Macs wouldn’t have known about 5.25 inch drives because Macs never used those, so there wouldn’t have been a need to distinguish between 5.25 inch drives and 3.5 inch ones.
This was just you. I’m also from the before-times, and was using cassettes as a storage medium before even seeing my first floppy drive. But, nobody called the ones with a sliding window “hard drives”. Diskettes, maybe, but more frequently just floppies, or 3.5 inch floppies to distinguish them from the bigger ones.
IBM PCs introduced computers with hard drives before they even switched to the 3.5 inch format. The earliest IBM PCs only had 5.25 inch floppies, often 2 drives. But the XT from 1983 came with a 10 MB drive by default, but still used 5.25 inch floppies. By the time IBM switched to 3.5 inch floppies, the hard drive was well established. That was in about 1987 with the PS/2 models.
The earliest Mac computers took a surprisingly long time to come with a hard drive. The earliest model Macs starting in 1984 came with 3.5 inch drives and no hard drive. It wasn’t until 1987 that Macs started coming with hard drives. So, I could maybe imagine someone who used macs not knowing what a hard drive was during that 3-year window. OTOH, someone who only used Macs wouldn’t have known about 5.25 inch drives because Macs never used those, so there wouldn’t have been a need to distinguish between 5.25 inch drives and 3.5 inch ones.