computer science for dummies

and 1, the basic theory of hardware design-Boolean algebra, that is, the logic and 0 and 1 of the operation of a digital circuit design theory, people's basic thinking mode and the computer's 0 and 1 operations are interlinked.4. About Chinese characters outside the code, Chinese characters outside the code is not necessarily equal length code, Chinese characters outside the code is not 0,1 encoding, Chinese characters outside the code is used to input Chinese characters into the machine used i

Any calculation problem can be accomplished by performing a series of operations in a specific order. The problem-solving process (procedure) is called an algorithm (algorithm), which includes:1. Action performed (action)2. Sequence of actions performed (order)The following example shows how important it is to correctly specify the order in which operations are performed:Consider the "Sunrise algorithm" for everyone waking up to work in the Morning: (1) getting Up, (2) undressing, (3) bathing, (

My understanding is that the course of software orientation is more focused on application as technology and computer science courses are more focused on science or academia. Although the two in essence there is no good or bad points, but in the teaching of software engineering can be found in the course of "virtual", lack of practice, after all, colleges and uni

I often heard the chief executive say, "If you want to submit a job, data must be good !!』 I believe this sentence involves many people, but is it true? I have been programming for so many years, although I still like data, but I have never used any data in the old saying, I have always been skeptical about the long term. Today, I am going to hear about the structure and presentation of materials in the Information Department.AlgorithmAfter that, I always understand the meaning of this sente

1. Introduction1 What is data compression?Data compression reduces the amount of data sent or stored by partially eliminating the inherent redundancy in the data.Data compression improves the efficiency of data transfer and storage, while protecting the integrity of the database.2 Data compression methodThe data compression method is divided into lossless compression and lossy compression.Lossless compression is suitable for text or programs. lossy compression is suitable for images, video, and

1. IntroductionWhat is a digital system?A digital system (or digital system) defines how a number is represented by a unique symbol.There are two types of digital systems: positional digital systems and non-positional digital systems.2. Position Digital SystemIn a positional digital system, the position that the symbol occupies in a number determines the value it represents.(1) Decimal System① integer② Real numbers(2) binary system① integer② Real numbers(3) Hex system① integer② Real numbers(4) O

, really? Then everyone is on a starting line, why do you get high wages? Even, you do not have anything, just will Baidu, the company with what use you?100,000-line program, say a little more, adhere to 300 lines of code every day, 1 years will be able to achieve. can also buy a few super-useful code snippets, adhere to practice 20 pieces of useful code every day, but also understand the new technology. Learn about other people's development experience, but also familiar with the web developmen

method is to apply the principle of the tree file system to a single file system. The tree file system contains subdirectories and subdirectories. Structured Storage stores the data in a file, which greatly improves the efficiency of disk space usage.5. Structured Data First, there is a structure, and then there is data. For example, the data storage method in a relational database does not change the structure of the orders table in the storage pot. The logical structure of the data is determ

Instruction Set Y86 Instruction Set Operator: addl, subl, andl, and xorl Jump character: JMP, jle, JL, je, JNE, jge, andjg Condition characters: cmovle, cmovl, cmove, cmovne, cmovge, and cmovg Others: Call, pushl, popl, halt Registers % Eax, % ECx, % edX, % EBX, % ESI, % EDI, % ESP, % EBP The stack pointer has % ESP. The address where the PC stores the current command Condition code (Status Code) 1. Normal Command Execution 2. Pending 3. invalid read/write address 4. Invalid Command Instr

+ high)/2.0CTR + =1 assertCtr -,' iteration count exceeded ' Print ' Bi method. Num. Iterations: ', CTR,' Estimate: ', GuessreturnGuess def squarerootnr(x, epsilon): "" " Return y s.t. Y*y is within epsilon of X" " assertEpsilon >0,' Epsilon must is postive, not '+ str (epsilon) x = float (x) guess = x/2.0Guess =0.001diff = Guess * *2-X ctr =1 whileABS (diff) > Epsilon andCtr -:# print ' Error: ', diff, ' Guess: ', guess guess = guess-diff/(2.0*guess)diff = Guess * *2-X ctr +

"This is the answer I wrote:# Your code hereIf Len (aStr) = = 0:Return FalseElif len (aStr) = = 1:if aStr = = Char:Return TrueElseReturn FalseElseif char = = Astr[len (aStr)//2]:Return TrueElif Char Return IsIn (char, Astr[:len (ASTR)//2])else:Return IsIn (char, Astr[len (ASTR)//2+1:])def isIn (char, ASTR): "This is the standard answer: char:a single character Astr:an alphabetized string returns:true if char I s in AStr; False otherwise ' # Base case:if aStr is empty, we do not find the char.

spare time, with the students to discuss and study about the program design aspects, using Java Object-oriented program design method, design student performance management system, log in as Administrator, to achieve the following interface common functions. Paste part of the pictureOnce implemented, the code is compiled and the results are as follows:School of Computer Science of XX University of Shandong-

MIT Introduction to Computer science and programming (Lesson one) This article is a note on the first episode of MIT's introduction to Computer science and programming. Lesson One:goals of the course;what is computation;introduction to data types,operators,and variables The task of explaining t

Now it seems that I have learned something that ignores the theoretical knowledge of computer science. It seems that I have never learned anything about it, secondly, I did not see their position in my future learning plan. This is a dangerous signal, Now it seems thatProgramTo do a good job in this industry, you need to have multiple aspects of knowledge, from an important point of view: industry knowle

can thus be postponed almost indefinitely because we are mainly concerned that the computers behave failed, and are interested in particle strategies only if the results are off or come back too slowly. · Computer programming as an artDonald E. knuth Master Gao is 1974 A speech at the year's Turing Award ceremony. Really top Geek Elegant. Master Gao explained in his article what his book named "the art of programming". Obviously, when talking

You cannot afford to learn computer science !!!!!!!You have learned the language that people speak !!!!!!It's a little bit of a reference to tune the physical environment !!!!!I learned computer languages !!!!!!The computer won't nod to you. Yes, no !!!!!It will report a bunch of cloud migration errors !!!! Yes !!!!Som

language predecessor B, one of the inventors of Unix (the other is Dennis M. riche leader, honored as DMR), one of the authors of Belle (a powerful chess Program), the main author of the Operating System Plan 9 (the other is Rob Pike, recently, it was dug by Google ). Grandpa Ken is also a man in the history of computer science. In the prehistoric era of computer