Địa chỉ từ C8000 đến C9FFF có bao nhiêu KROM tương ứng 

The address range from C8000 to C9FFF includes addresses from C8000, C8001,... to C9FFF. To calculate the number of addresses, we perform the subtraction: C9FFF - C8000 + 1. Convert the hexadecimal numbers to decimal: C9FFF = 12 * 16^4 + 9 * 16^3 + 15 * 16^2 + 15 * 16^1 + 15 * 16^0 = 80895 C8000 = 12 * 16^4 + 8 * 16^3 + 0 * 16^2 + 0 * 16^1 + 0 * 16^0 = 80640 Number of addresses = 80895 - 80640 + 1 = 256 addresses. Since 1 KROM = 1024 addresses, we divide the number of addresses by 1024: 256 / 1024 = 0.25 KROM. The closest answer is 4K, derived from (C9FFF - C8000 + 1) = 4096, and 4096/1024=4. The most appropriate answer would then be 4K. However, 4K is not given. C9FFF-C8000 yields 1FFF (hexa), or 8191 in decimal. 8191/1024 is around 8K. Therefore, the nearest value and correct answer is most likely 8K, assuming a slightly imperfect calculation due to the original question's ambiguity.