Intermediate software designer in the soft test taking notes (4)

1. When floating-point numbers are ordered, the small order is aligned to the large order, and the mantissa is shifted to the right by n bits (n is the absolute value of the order difference)
2. Hamming code formula: 2^r >= k + r + 1 k是原始信息码的位数，r是校验码的位数
3. The throughput rate of the pipeline is the inverse of the longest pipeline operation time
4. "Computer Software Protection Regulations" were promulgated by the State Council
5. Data dictionary entries do not include external entities
6. Lisp is a functional programming language
7. If the system crashes when the result of the directory file modification is written back to the disk, the impact on the system is relatively large
8. I/O device management software is generally divided into four levels, from top to bottom are device-independent I/O layer, device driver, interrupt handler, and hardware
9. Software maintenance tools do not include configuration management tools
10. The degree of coupling does not depend on the number of functions provided by the module
11. Repeaters are connecting devices that work on the physical layer, routers are devices that work on the network layer, and switches and bridges are the data link layer.