Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO

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GB2312 Tutorials - Herong's Tutorial Examples
This free book contains Herong's notes and tutorial examples on Chinese GB2312 character set. It provides a mapping table of all GB2312 characters, native codes, corresponding Unicode codes and UTF8 codes. The Java program source code that produces the mapping table is also included. Topics include ... 2024-09-20, 29901🔥, 14💬

2B00: Miscellaneous Symbols and Arrows
This section provides a quick summary of the Unicode code point block: 'Miscellaneous Symbols and Arrows', which contains 256 code points to represent additional symbols and arrows. 2024-09-19, 1365🔥, 1💬

Activity Diagram - Send Signal Notation
This section describes the Send Signal Notation used in a UML Activity Diagram. A Send Signal Notation represents an action that sends a signal to outside and continues without waiting for any responses. 2024-09-18, 295🔥, 1💬

Free Chinese Calendar 2011 - Year of the Rabbit
Want to know when is the 2011 Chinese New Year day? Look for free Chinese calendars for 2011? Chinese New Year Date for Year 2011 The Rabbit 2011 February 3 Thursday Chinese New Year   ⇒ Free Chinese Calendar 2012 - Year of the Dragon ⇐ Free Chinese Calendar 2010 - Year of the Tiger ⇑ Free Chinese ... 2024-09-12, 13989🔥, 2💬

Loading JDBC Driver for MySQL Server
This section describes how to load the MySQL JDBC driver class - mysql-connector-java-xxx-bin.j ar. 2024-08-29, 14845🔥, 1💬

Archived: Downloading and Installing JDK 1.6
This section describes how to download and install Java SE (JDK) 1.6 Update 2 on a Windows XP system. 2024-08-17, 309🔥, 2💬

List CPU Caches and Their Sizes
This section describes how to use 'lscpu', 'lshw' and 'dmidecode' commands to list CPU caches and their sizes. 2024-08-17, 116🔥, 0💬

"who | w" - Logged-in Users and Their Running Commands
This section provides a tutorial example on how to display logged-in users and their running commands using 'who' and 'w' commands on Linux systems. 2024-08-17, 115🔥, 0💬

Layers of Memory and Access Speed
This section describes layers of memory: CPU Register, CPU Caches, RAM and hard disk. 2024-08-17, 113🔥, 0💬

Verify Cache Memory with "cp" Command
This section provides a tutorial example to verify the cache memory usage in the RAM free space using a single 'cp' command. 2024-08-17, 113🔥, 0💬

smem - Process Memory Usage Report
This section provides a tutorial on how to install 'smem' and use it to report memory usage of each running process. 2024-08-17, 113🔥, 0💬

pmap - Process Memory Map
This section provides a tutorial on how to install 'smem' and use it to report memory usage of each running process. 2024-08-17, 112🔥, 0💬

What Is Swap Space
This section describes swap space, reserved area on the hard disk that extends RAM to form a larger physical memory. 2024-08-17, 111🔥, 0💬

/proc/{id}/smaps - Process Memory Map Details
This section describes the pseudo file '/proc/{id}/smaps' that represents virtual memory map of a given process with detailed information on each mapped area. 2024-08-17, 111🔥, 0💬

Memory Management
This chapter provides introductions and tutorial notes on memory management. Topics include memory layers and access speed; cache memory levels; virtual memory and physical memory mapping; page table; buffers, caches and swap spaces; memory usage reporting tools: free, ps, smem, pmap, /proc/meminfo,... 2024-08-17, 110🔥, 0💬

Virtual Memory Mapping and Page Table
This section describes virtual memory page, physical memory frame, and page table that maps a page to a frame. 2024-08-17, 110🔥, 0💬

"ps -o rss,drs,trs,vsz,sz" - Process Status Options
This section provides a tutorial on how to 'ps -o rss,drs,trs,vsz,sz' command to report memory usage of each running process. 2024-08-17, 110🔥, 0💬

Virtual Memory vs. Physical Memory
This section describes virtual memory, which is mapped to physical memory through MMU (Memory Management Unit). 2024-08-17, 109🔥, 0💬

Buffer Memory and Cache Memory
This section describes buffer memory and cache memory, which are temporary memory allocations in the free RAM area to improve data input and output performance on hard disk. 2024-08-17, 108🔥, 0💬

/proc/{id}/maps - Process Memory Map
This section describes the pseudo file '/proc/{id}/maps' that represents virtual memory map of a given process. 2024-08-17, 108🔥, 0💬

GD Library - Draw Graphical Elements
This section provides a tutorial example on how to draw graphical elements using GD Library functions. 2024-08-11, 553🔥, 1💬

The Constancy of the Speed of Light
This section provides a thought experiment to help understanding the second assumption of the special theory of relativity: The constancy of the speed of light. 2024-08-08, 1869🔥, 75💬

GD Library - Create Transparent Image
This section provides a tutorial example on how to create an image with transparent background using GD Library functions. 2024-07-29, 122🔥, 0💬

GD Library - Pad Transparent Image
This section provides a tutorial example on how to pad the transparent background of to expand an image using GD Library functions. 2024-07-29, 121🔥, 0💬

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Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO