vsat technology basics

Web and network basics, HTTP packets, working principles, HTTP Communication Technology in Java, java Communication Technology I. web and network Basics 1. HTTP history 1.1 concept of HTTP: HTTP (Hyper Text Transfer Protocol) is a communication Protocol that allows the Transfer of Hypertext Markup Language (HTML) docu

[Program Design Basics _ c Language] the evil dragon and Program Design Basics of Beijing Institute of Technology _ cEvil dragon of Beijing Institute of Technology (attached qsort instance) Background:Recently, Beijing Institute of Science and Technology has a dragon with m

Java basics --- I/O technology (3), basics --- I Followed by the previous java basics-I/O technology (2)Java object serialization and deserialization what is object serialization and deserialization? To complete the input or output of an object, you must also rely on the obj

Java basics-New I/O technology (NIO) and basics nioBefore JDK1.4, I/O input/output processing is called the old I/O processing. Beginning with JDK1.4, java provides a series of improved new input/output features, these functions are called new I/O (new I/O) and many NEW classes are added for processing input/output.Java. nio package and sub-PackageIn addition, ma

Mm_text 1px Mm_lometric 0.1mm Mm_himetric 0.01mm Mm_loenglish 0.01 inch Mm_hienglish 0.001 inch Mm_twips 1/1440 inch Mm_isotropic User-defined value, but the X and y directions are equal (equal) Mm_anisotropic User-defined values, but the X and Y directions are arbitrary The mapping mode is set by a member function Setmapmode

properties, drawing modes.Each window, control (including universal controls and ActiveX controls) has a device environment variable that overrides a window or control. We can either get the Windows Desktop's window device environment, draw on the desktop, or use the device environment of any one of the controls to draw the control or improve the appearance of the control.Gets the device environment object pointer call: GetDC () function. After you construct a CDC object and finish processing i

the Orders table that are placed by the specified customer within the specified date range, and also takes the behavior affected by the query as an output parameter.View Code Tips: Stored procedures can encapsulate business logic processing, better control security (to help avoid SQL injection), and improve execution performance (reduce network traffic). (3) Trigger: A special stored procedure that, whenever a particular event occurs, invokes the trigger and runs its code. SQL S

, and the For loop should be used if you need to change the values of the elements in the array. Jump statement Break statement: It can be used in a for-, while, Do-while, foreach-loop statement, except in the switch structure, by exiting a case statement with the escape statement. The break statement causes the program to jump out of the current loop structure and continue executing the statement following the loop. Continue statement: The continue statement is similar to the break statement.

Switch Basics: Link Aggregation definition Link aggregation technology is also known as backbone Technology (trunking) or bundled technology (bonding), its essence is to two devices between several physical link "combination" into a logical data path, called an aggregation link, such as Figure1 signal. Physical links

Computing ClustersHigh-performance computing clusters, referred to as HPC clusters. Such clusters are dedicated to providing powerful computing power that a single computer cannot provide, including numerical computation and data processing, and tends to pursue comprehensive performance. HPG is similar to supercomputing, but different, and computing speed is the first goal of Supercomputing pursuit. The fastest speed, maximum storage, the largest volume, and the most expensive price represent t

Framework Basics: Ajax Design (II)---integrated polling technologyThe previous article introduced the AJAX technology core approach, and cross-domain issues (as long as background support cross-domain default post can), this article explains the use of AJAX implementation of polling technology, as for the Iframe,sse server one-way push, And the WebSocket duplex c

Can we differentiate many wireless technologies? Wi-Fi wireless technology is widely used. As one of short-distance wireless transmission technologies, it has many advantages such as low cost and low power consumption. The following is a brief introduction. Wireless Network basics: Wi-Fi wireless technology The concept of wireless includes many aspects, such as m

Currently, I am engaged in front-end development. I am familiar with the basics of javase. what if I know back-end technology javaee or php? Currently, I am engaged in front-end development. I am familiar with the basics of javase. what if I know back-end technology javaee or php? Reply content: Currently, I am eng

thread is an object in Java, what are the properties of this object? Thread properties can be divided into static and dynamic properties, static here refers to the programmer is immutable, there is a JVM allocation, dynamic refers to the programmer can be customized, although the JVM gave the default property values. Static attributes: ID, etc., Dynamic properties: Name,priority,deamon,group,classloader, etc. So much for the basics, that's what it's

method is finished each time, the GC will release the resources of the method, and then execute, and then Release.Code has been integrated github:https://github.com/GerryIsWarrior/ajax dot star is my biggest encouragement, next study Ajax upload file technology (H5)PS: for polling this technology, although usually used less, but in some special business scenarios can play a big role. In the browser, there

Java multithreading BASICS (4) traditional Java thread synchronous communication technologyJava multithreading BASICS (4) Java traditional thread synchronous communication technology coding to implement the following functions The sub-thread loops for 10 times, the main thread loops for 100 times, and then returns to the sub-thread loop for 10 times, and then ret

method is finished each time, the GC will release the resources of the method, and then execute, and then release.Code has been integrated GitHub:https://github.com/GerryIsWarrior/ajax dot Star is my biggest encouragement, next study Ajax upload file technology (H5)PS: For polling this technology, although usually used less, but in some special business scenarios can play a big role. In the browser, there

Java multithreading BASICS (3) traditional Java thread mutex technology, multi-thread mutexJava multithreading BASICS (iii) traditional Java thread mutex Technology Java threads are mutually exclusive mainly through the synchronized keyword. The following sample code demonstrates the basic usage of several synchronized

, what questions can blog, email, Leave a message on GitHubThis time uploading the version, the code has changed, the following changes: Increased Formdata data transfer method (PostFormData), automatically using default raw data transfer if the browser does not support Formdata New types of judging methods, judging types Update each method to determine if the incoming parameter obj is an array and the browser supports the new feature of H5 directly with the Foreach method

Ajax| Security 1. Introduce Ajax has been noticeable in the last year because of its good interactivity. Google suggest and Google Maps [ref 1] are some of the earliest known applications of Ajax. Now, companies are considering how they can also use Ajax,web developers to learn it, and security experts are thinking about how to make it safe, and hackers are thinking about how to invade. All the technologies that improve server throughput, generate more dynamic page transfers, and provide richer