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2018-2019 20165203 Information Security System Design Basics Chapter 5 study summary teaching material content summary important concepts Storage System: a hierarchy of storage devices with different capacity costs and access time. Cache memory ------ buffer area for data and instructions in primary storage ------ disk ------ buffer area for connecting data on disks or tapes of other machines through the network Memory Hierarchy: CPU memory ---- h

20172333 2018-2019-1 "program design and data structure" Fifth week study summary textbook Study summary = = "Java software structure and data Structure" chapter Nineth-sort and find = =First, find ①. Find a concept: look for an element in a project or determine whether an element exists in the project. ②. Type of lookup: Find in the Nineth chapter, we mainly discuss two types, one is linear lookup and the other is binary search. ③. T

2018-2019-1 20165228 "The foundation of Information security system design" The second week study summary textbook learning content Summary information = bit + context Unsigned encoding: Represents a number greater than or equal to zero based on the traditional binary notation Complement coding: represents the most common way to sign a certificate, a number that can be expressed or positive or negative Floating-point encoding: A two-base versi

2018-2019 20165219 Summary of storage technology in week 5 of Information Security System Design Basics Random Access Memory: Comparison of SRAM and DRAM, traditional DRAM and enhanced dram Enhanced DRAM: Fast page mode DRAM: allows continuous access to the same row to get services directly from the row buffer. Extended Data Output DRAM: Allows CAS signals to be more time-intensive. Synchronous DRAM: SDRAM can output its supercell content faster t

Link:Http://poj.org/problem? Id = 2019 Question:We will give you a matrix of N * n, Q queries, and the coordinates in the upper left corner of each query. We will ask the difference between the maximum value and the minimum value in the Child matrix of B * B in the upper left corner. Ideas:Basic applications of two-dimensional rmq, templates found online This question is from usaco, where the data is very watery and violent. #include POJ--

2018-2019-20172329 "Java software architecture and data structure" first week study summary In this semester is already sophomore, also has entered the study specialized course core time, at this stage, we should know oneself the study situation, according to own learning ability to make the different plan, obtains to the self-ability enhancement. Let's start a new semester! Summary of learning contents of textbook Java software structur

20172328 2018-2019 "Java software architecture and data structure" the first week of learning summary overviewGeneralizationThis week, we learned about software quality, data structure, and algorithmic analysis, mainly based on the first and second chapters of the textbooks used. Summary of learning contents of textbookA Summary of textbook Chapter One: Overview 1.1 Software Quality Software Engineering: A discipline of technology and theory o

20172304 2018-2019 "Java software architecture and data Structure" chapter I chapter II Summary of learning contents Chapter I. Overview1.1 Software Quality:Several features of high-quality software: Correctness: To what extent the software meets its specific needsReliability: Frequency and degree of risk of software failuresRobustness: The extent to which an error can be handled appropriatelyUsability: How easy it is for us

Tags: HTML relationship design best case sharing picture equals a time20172305 2018-2019-1 "Java software architecture and data structure" the first week of learning summary textbook study content this week is mainly about the contents of the first and second chapters of the book: Chapter I. Software quality: Accuracy (the degree to which the software meets specific requirements) Reliability (frequency and de

Recently, it has been reported that the poor yield of TSMC 10nm chip may have a greater impact on the launch of more than 2017 high-end mobile devices, including, naturally, the next generation of IPhone and IPAD models. However, TSMC formally dismissed the claim, suggesting that the 10 nano-processor production was done exactly as planned, without any lag, and that the processor would start to profit in the first quarter of next year.TSMC also released another blockbuster message. TSMC also sai

20165230 2018-2019-1 "Information Security system Design Fundamentals" The second week study summary of learning Contents There are two general rules for arranging the bytes of an object: The small-end method (least significant byte at the front) and the big-endian (the most significant byte in front). The expression x>>k will shift the X arithmetic right to K (the left side complements the K-effective bit) and the x>>>k will make a logical (lef

2018-2019-1 20165334 "Fundamentals of Information Security system Design" Third week study summary and Buffer Overflow Vulnerability experiment One, instruction learning gcc -Og -o xxx.c learns to -Og tell the compiler to use an optimization level that generates machine code that conforms to the overall structure of the original C language code. gcc -Og -S xxx.cLearning ( -S option to view compiled code generated by the C language compiler) gcc -Og -c

2018-2019-1 20165230 "Fundamentals of Information Security system design" The third week study summary of learning Contents The actual implementation of the memory system is to combine multiple hardware memory and operating system software. How valid addresses are calculatedImm(Eb,Ei,s) = Imm + R[Eb] + R[Ei]*s ISA: Instruction set architecture, which defines the state of the processor, the format of the instruction, and the effect of

20172322 2018-2019-1 October 19 class test reportProgram: Program design and data structureClass: 1723Name: Zhang HaoStudy No.: 20172322Lab Teacher: Wang Zhiqiang teacherTest Date: October 19, 2018Compulsory/elective: compulsorySupplementary exercises the original questionThe number you want to find is in the initial order of 11,78,10,1,3,2,4,21Problems with homework submitted in class The binary Lookup section of the ASL is calculated incorr

-2018-2019-1 20165206 "Information Security system Design Fundamentals" 4th Week Study summary-Textbook learning content Summary Programmer-Visible state: Each instruction in the Y86-64 program reads or modifies portions of the processor state, which is known as the programmer's visible state. Includes: program register, condition code, program status, program counter, and memory. Y86-64 directive: The y86-64 instruction is a subset of th

2018-2019-1 "Information Security system design basics" x-week study summary of learning ContentsSummarize what you learned this week as simple as possible.Try not to transcription, waste timeRead it, do not understand, learn to remember the experienceProblems in teaching materials learning and the solving process(a template: I read this paragraph of text (quoted text), there is this problem (ask questions). I checked the information, there are these

-2018-2019-1 20165206 "Information Security system Design Fundamentals" 3rd week Study summary-Textbook learning content Summary Program code: The GCC command invokes a complete set of programs to convert the source code into an executable file.First, the C preprocessor expands the source code;Second, the compiler produces the source file assembly code;The assembler then converts the assembly code into a binary target code file;Finally, the l

2018-2019-1 20189221 Book fast reading 1th Week "in-depth understanding of computer systems" The 1th chapter:How to understand Amdahl law? The 2nd Chapter:How do you get code to run on a machine of any word length, and how to port code between different machines? The 3rd chapter:How do C + + and Java compilers map to generate machine-level programs? The 4th chapter:How does a pipelined processor perform basic exception ha

2018-2019-1 20165336 "Information Security System Design Basics" week 5th Study Summary 1. learned knowledge points SRAM and DRAM are both easy to lose, but they have different structures, different speeds, and faster access speed. The prom can only be programmed once. Programs stored in ROM devices are usually called firmware. The EEPROM can erase the information on the chip with a specific voltage without ultraviolet radiation or re

20172324 2018-2019-1 "program design and data structure" Fourth Week study summaryCollection of summary list of learning contents of textbooks List Description Ordered list Its elements are sorted according to some intrinsic characteristics of the element Unordered list The elements do not have an intrinsic order, and the elements are sorted according to their position in the list (d