"A Brief History of mankind" He Lali's some record of human evolution from primitive tribes to be interesting, there will be a transfer of information between animals, but humans developed complex system is a new dimension of language: Abstract thinking.
I understand the abstract representation from many years can an abstract representation can describe these frameworks, theories, nouns.
wikipedia in the definition of the abstract:
- Abstract: Extraction of things that some essential things, eliminate minor surface of things.
- Computer science abstraction: refers to the advanced models, and relatively low-level entity.
Recently we opened a CSAPP (in-depth understanding of computer systems) ...
before it begins to speak of abstract has been impressed,
- Document is an abstract of the I / O of the
first to find out what the document is, and then go to understand I / O mode several
document is a sequence of bytes, each I / O device can be regarded as a document, the document is an abstract concept out, you can handle a broad range of I / O devices through the document. - Process is an abstraction of a running process of being
- Command set of the actual structure of the processor hardware abstraction
- Virtual memory is an abstract process memory
- A virtual machine is an abstract of the whole computer
Above abstract talking about are very low-level abstraction layer is more need in the business abstraction, object-oriented language also provides the ability to achieve better abstract. Abstract and also one of the four elements of object-oriented.
From the human mind "abstract" evolved out of the primitive, the computer system successful launch of abstraction, in fact, very similar to the nature of the road, from the nature to explore the issue, think about business system draws ideas from nature, history, system the problem is also the ability and accomplishment.
Verbatim large column https://www.dazhuanlan.com/2019/08/27/5d64c8bfd3053/