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Solve : What is Fh??

Answer»

I was reading this sentence:

Floppy Disk CONTROLLER (FDC) uses I/O address range 370 to 37Fh.

I know Fh is an abbreviation, but what does it stand for. It deals with input and output, but I still am lost.370 to 37F is hexidecimal which is counting in Base16
001101110000 to 001101111111 in Binary (Base 2)
880 to 895 in Decimal (Base10)

http://en.wikipedia.org/wiki/HexadecimalQuote from: Tech_wannabe on May 27, 2011, 12:34:39 PM

I know Fh is an abbreviation, but what does it stand for. It deals with input and output, but I still am lost.

F is a hexadecimal digit, h is an abbreviation. It is a suffix letter indicating that the NUMBER is written in hexadecimal where the number base is 16. The numbers 0 to 9 use the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 as in base 10 (decimal) and the numbers 10 to 15 are given the letters A, B, C, D, E, F or ALTERNATIVELY a, b, c, d, e, f. When specifying a range the suffix "h" (meaning hexadecimal) is OFTEN added both numbers thus: 370h to 37Fh. In many computer architectures, input/output is "memory-mapped" and it appears that in the one that you are reading about, the floppy disk controller is assigned the address range stated.

http://en.wikipedia.org/wiki/Input/output_base_address

http://en.wikipedia.org/wiki/Hexadecimal


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