Hardware abstraction

Seoul, 4;30 PM-2016/11/04 Hardware abstractions are sets of routines in software that emulate some platform-specific details, giving programs direct access to the hardware resources. They often allow programmers to write device-independent, high performance applications by providing standard Operating System (OS) calls to hardware. The process of abstracting pieces of hardware is often done from the …

Understanding AJAX and SOCKET.IO concepts

Seoul, 11:20 PM, 2016-11-03, Đang trùm đầu tại bàn làm việc. Trời bắt đầu vào thu, chớm lạnh vô tinh lướt qua một câu hỏi của một bạn :"ajax và socket.io khác nhau thế nào?". Nay mình post answer trên này cho ai cùng thắc mắc nhé. Socket: Cho phép thao tác trên layer 3, …

OPENSTACK EVENTLET NOTICES

Seoul, 10:17 AM 2016/11/04"Autumn is about to be over,  Feeling energetic and warmer after taking a cup of coffee"OpenStack is built as configurable as working with multiple process workers. Some of satisfactory solutions like multi thread or process are also suitable but the common solution is non-blocking I/O. Eventlet is used nowadays for asynchronous I/O (non-blocking) purpose …