Can someone help me:
Your friend Franziska bought an external hard drive. She proudly comes to you because you have promised to transfer some important audio files to her. When you ask how big the plate is, it says one terabyte. You connect the plate to your notebook. The disk is recognized, you look at the disk, the storage capacity in Explorer is shown with 931 GB. Angry, your girlfriend wants to bring the disk back immediately and claim the missing 70 GB. However, you can reassure her and explain that everything is correct.
This article could help you: https://www.techbook.de/...-angegeben
Counter question: If the task tells you that you can calm it down, maybe you slept instead of paying attention?
Large powers of two are often used in computer science. Here you shorten 2¹⁰ = 1024 as kilo (because that's about 1000), 2²⁰ = 1 048 576 as mega, 2³⁰ = 1 073 741 824 as giga, 2⁴⁰ = 1 099 511 627 776 as tera etc. How you see, this deviates more and more from the metric scale.
Hard drive manufacturers like to give the capacity in metric units. 1 TB is exactly 1,000,000,000,000 bytes. The "Explorer", on the other hand, probably uses powers of two, and there are 931 GB = 931 · 1 099 511 627 776 = 999 653 638 144 bytes.
So the information is not that different. The little rest that is still missing was most likely used for storage management (partition table, file system, table of contents, recycle bin, …).
By the way, the scaling according to powers of two has been officially called Kibi-, Mebi-, Gibi- etc. For 20 years (-bi- stands for binary). Correctly, the Explorer should display 931 GiB. But almost nobody does that to this day
