computer systems programmers perspective

learning, a word that I have deep feelings--learning is boundless, learn endless. From the beginning as a small white ignorant, to step by step understanding after the awe,Linux is like this, want to find its good, need step by step in-depth understanding, and use it. Learn more knowledge, but feel Linux more enigmatic, at first only a few commands, think Linux only a few commands, to learn more advanced files, systems, process management, But see a

and regulations, respect intellectual property rights, love and dedication, and strictly abide by the confidentiality system.(2) seeking truth from facts, working conscientiously, performing due diligence, being meticulous, striving for perfection, and team spirit.2.2 Basic Knowledge2.2.1 composition of computer systems(1) Basic Components of computer hardware.(

Introduction We have briefly introduced the binary number system. We will not go into detail here. The computer can only recognize binary systems. We know that a computer is composed of multiple electronic components, and the electronic components usually have two states, for example, power-on or breakpoint.) the binary system has only two digital 0 or 1 states)

kernel holds different roles. From a purely technical point of view, the kernel is just a middle tier of software and hardware , sending requests from software to the hardware, addressing and so on, and acting as a low-level driver. From an application perspective, the kernel is a high-level abstraction of the hardware, the application is not connected to the hardware, only the kernel, and the kernel is the lowest level that the application knows. Fr

Algebird-scala's abstract Algebra tool Xerial-scala's Data management tools simmer-simplify your data, perform algebraic aggregation of UNIX filters Predictionio-is a machine learning server for software developers and data engineers. Bidmat-supports the CPU and GPU acceleration matrix libraries for large-scale exploratory data analysis. 13.3 Machine Learning Extensible machine Learning Framework under conjecture-scalding Decision tree Tools under brushfire

"In-depth understanding of computer Systems" Chapter III-Machine-level representation of the program. The author first explains the relationship between the assembly code and the machine code, expounds the function of the assembly link, then starts from the machine language IA32, describes how to store the data, how to access the data, how to complete the operation and how to jump. Through these steps, we a

perspective (to understand the computer system from the perspective of a program ape)Below assume oneself is a computer small white (actually also almost, hehe, no, than small white strong point, but some concepts or what still do not understand, computer work principle is

In the operating system, the first chapter is the introduction of the operating system. After drawing a picture of the first chapter, it is found that the introduction is mainly about the computer system. This article introduces the entire computer system. In the hierarchy, The most hierarchical and complex software. The operating system is a system software that provides management processor, memory,

Original address: http://blog.csdn.net/slvher/article/details/9150597Memory management is a big challenge for C + + programmers, it is absolutely worth the cautious, otherwise it is painful to let the module of tens of thousands of lines of code run up before the memory crashes. Because the location of the crash is in time and space, it is usually shown after a distance from the real source of the error. A few days ago on-line module due to heap memor

In general, the hierarchical structure of a computer system is divided into 7 levelsLevel 0: Hardware designer Logic Line operation timingLevel 1: Logic Designer Register Logic Micro-Program command timingLevel 2: Machine language Programmer Central Processor instruction system target programLevel 3: System Operator OS System primitive Keyboard commandLevel 4: Assembler Assembly programmerLevel 5: Advanced Language programmer Interpreter program compi

. Then, the instruction decoder generates various operation instructions based on the IR content, complete the required functions.2) PC (program counter): the CPU automatically modifies the content so that the address of the next instruction is always maintained. That is, add 1 to the PC to track the command address.3) Ar ("A" is adress) saves the address of the memory unit accessed by the current CPU. 3. Register GroupThere are two types: Private and general. Registers in the memory and control

"In-depth understanding of computer systems," The third edition just came out less than a week, then bought the book, the reason for reading this book, on the one hand from the Netizen recommendation and good grading, evaluation, on the other hand is against my non-trained, computer system-related knowledge is relatively weak, In many cases, this kind of knowledg

store16-512Page table items. The current computer can also have two levels and multi-level page tables Basic multipart Storage Management Methods If the main motivation for promoting storage management from fixed partitions to dynamic partition allocation and then to paging storage management is to improve memory utilization, we will introduce the segmented storage management method, this is mainly to meet the programming and usage requirements of

Deep computer system note (1) describes the composition, execution, and control of programs. The next step is to run. I skipped the "processor architecture" and "Optimized Program Performance", and the notes for these two chapters continue to be delayed! A great use of "deep into computer systems" is: it gives us a lotDefinitionOrScientific ExplanationThis will b

Virtual memory is a perfect interaction between hardware exceptions, hardware address translation, main memory, disk files, and kernel software, providing a large, consistent, and private address space for each process.The virtual memory provides three important capabilities:1) It regards main memory as a cache of address space stored on disk, storing only active areas in main memory and transmitting data back and forth between disk and main memory as needed, in this way it uses main memory effi