本文深入探讨了计算机科学中四种关键的数据表示方法：无符号整数、带符号整数、实数以及虚拟内存地址。通过解释每种表示的原理，帮助读者掌握数据如何在计算机内部进行编码和存储。
1. unsigned positive integer including 0 ---> unsigned encoding
2. signed integer ---> Two's-complement encoding
3. Real number ---> Floating-point encoding
4. Virtual memory Address - Every byte of memory is identified by a unique number.
5. Set of all possible addresses --> virtual address space
6. Binary
7. Decimal
8. Hexadecimal
2. signed integer ---> Two's-complement encoding
3. Real number ---> Floating-point encoding
4. Virtual memory Address - Every byte of memory is identified by a unique number.
5. Set of all possible addresses --> virtual address space
6. Binary
7. Decimal
8. Hexadecimal
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