The 16-byte entries within an MBR or EBR Partition Table have CHS-tuples which are limited to only (1023,254,63) for a total of 1024 cylinders, 255 heads and 63 sectors (values for cylinders and heads start at zero (0 ~ 1023 cylinders, 0 ~ 254 heads), and sector values start at one). For computers whose BIOS code was also limited to using only these CHS values, what was the largest size hard disk on which every sector could be accessed? Starting with the formula above, but also including the term, 512 bytes/sector, the hard disk could be no larger than:
((1024 * 63) * 255) * 512 = 8,455,716,864 bytes (about 7.8 GiB)
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