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PLEASE DO NOT USE PRINTF-> professor doesnt want us to use it
Computer Memory and Data Representation
Computers use a fixed number of bits to represent numbers, characters, or other pieces of data. An n bit repository can represent up to 2^n different businesses. For example, a 3-bit memory space can contain one of eight binary patterns: 000, 001, 010, 011, 100, 101, 110, or 111. So it can represent at least 8 different entities. It can be used to represent the numbers 0 to 7, the numbers 8881 to 8888, the letters “A” to “H”, or up to 8 different types of fruit such as apples, oranges, and bananas. Or up to 8 animals including lions and leopards etc.
For example, integers can be represented in 8bit, 16bit, 32bit, or 64bit formats.As the editor of the programme, you choose the proper minimum length for your values.The range of total values that can be expressed will be limited as a result of your choices.With the exception of the minimal length, the entire number can be expressed in a variety of ways, for example, unsigned versus signed numbers. The range of an 8bit signed integer is 0 to 255, while the range of an 8bit unsigned number is -128 to 127, representing 256 different values.
It is important to note that computer memory space only retains a binary pattern. It is entirely up to you, as the editor, to decide how these patterns will be interpreted. For example, the 8bit binary pattern "0100 0001B" can be interpreted as a 65 signature number, or an ASCII letter 'A', or other private information known only to you. In other words, you have to first decide how you represent a piece of data in a binary pattern before binary patterns make sense. The definition of a binary pattern is called data representation or coding. In addition, it is important that data representation systems are agreed upon by all parties, that is, industrial standards need to be developed and adhered to.
Once you have decided on a data representation system, certain constraints, in particular, accuracy and scope will be set. Therefore, it is important to understand the representation of the data in order to write the most appropriate and efficient programs
Egyptian hieroglyphs (next to left) were used by the ancient Egyptians from 4000BC. Unfortunately, after 500 AD. No one could read ancient Egyptian hieroglyphs until 1799, when Napoleon's troops discovered the Rosetta Stone (during the Napoleonic invasion of Egypt).
The
Rosetta Stone (left) was carved in 196 BC. In the name of Ptolemy V. Basically all three texts contained the same text, and ancient Greek was still incomprehensible, which gave clues to the interpretation of the Egyptian text.
Data cannot be determined without knowing the behavior of the history, the code system.
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