Tell me about the WW II Code Girls stories.The WW II Code Girls had a significant impact on the outcome of the Second World War. They came from different backgrounds but were united in their mission. Some were recent college graduates, while others had already been working in various fields. Their work involved complex algorithms and painstaking analysis. Their stories not only show their individual heroism but also the power of women in a male - dominated field during that time.
code 47Codename 47 was a mysterious assassin. He was a clone created using genetic technology and was hired by an organization called "The Agency" to carry out assassination activities. His identity could be identified by the tattoo on the back of his neck. In movies and games, Codename 47 displayed his calmness, intelligence, and mysterious and low-key character. He never asked about the truth and significance of the crime until he met a mysterious woman, Katia, who changed his fate. However, he was also hunted by the assassin organization because of this, and his life was in danger. The character codename 47 had received a lot of attention in movies and games. His physical fitness and skills were excellent, almost all-encompassing. He was a cold-blooded killer with facial paralysis, but he had displayed outstanding wisdom and skills in the mission. Overall, Codename 47 was a fascinating character, and his story was full of tension and excitement.
complement, original code and remainder codeThe most significant bit of the original code was the sign bit. 0 represented a positive number, 1 represented a negative number, and the rest of the bits were the same as the binaries. For example, 10001010 represented-10, 00010001 represented 64 + 16 + 1 = 81.
The representation of a negative code was that the negative code was based on the original code. The sign bit was unchanged, and the other bits were inverted. For example, an 8-digit number representing-10 in the decimal system, the original code was 10001010, and the complement code was 11110101.
The representation of a complement was that the complement of a positive number was itself, and the complement of a negative number was based on the original code. The sign bit was unchanged, and the rest of the bits were inverted. Finally, 1 was added (that is, 1 was added to the complement). For example, an 8-digit number represented the decimal number-10. The original code was 10001010, the complement was 11110101, and the complement was 11110110.
The remainder code was a code obtained by modifying the complement, and was often used to represent the exponential part of floating-point numbers. By setting the offset of the complement to a specific value (usually a fixed positive number), the range of values after the code was more suitable for specific applications. For example, in the floating-point number representation of the IEFL 754 standard, the index part was represented by the remainder code. By setting the appropriate offset, it was convenient to represent positive and negative exponents and special values (such as zero and infinity).
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Complement, complement, original code, code shiftIn a computer, machine numbers had four forms of representation: original code, complement code, complement code, and code shift.
The original code was the way the computer stored a specific number. It was composed of the sign bit plus the absolute value of the truth value. The first bit represented the sign (0 was positive, 1 was negative), and the remaining bits represented the absolute value of the truth value. The range of the number it represented was related to the number of digits (machine word length) of the binary-system. For example, the range of the original code of the 8-digit binary-system represented by the integral number was-128 to +127. It was more convenient for the original code to perform multiplication (mantissa multiplication, sign bit operation), but the operation of the symbol value needed to be handled separately, which would make the logic circuit structure complicated.
The complement code was usually used to find the complement code from the original code or to find the original code from the complement code. For a positive number, its complement was the same as the original code. The highest bit was the sign bit (0 represented a positive number), and the rest of the digits were the same. For a negative number, the complement represented that the highest sign bit was 1, and the rest of the digits were reversed based on the original code.
Complementing was also a way to represent signed numbers in a binary-code format. The complement of a positive number is the same as the original code, and the complement of a negative number is its complement plus 1. In a computer system, values were all represented and stored in a complementary code. This was because the use of a complementary code could unify the sign bit and the value domain, and addition and substitution could also be handled in a unified manner. Moreover, the complementary code and the original code were converted in the same way, and no additional hardware circuits were needed.
The code shift was defined by adding an offset to the number X. It was often used to represent the order of a floating-point number. The definition of the code shift was: [X] shift = 2 ^n + X (-2^n <= X <= 2 ^n- 1, where n was the number of digits of an integral number). The main purpose of the code shift was to facilitate the comparison of sizes, because the larger the code shift, the corresponding truth value was also larger.
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