ACM Transactions on Architecture and Code Optimization《美国计算机协会结构与代码优化会报》(季刊). The ACM Transactions on Architecture and Code Optimization (TACO) is a Gold Open Access Journal that focuses on hardware, software, and system research spanning the fields of computer architecture and code optimization. Articles that appear in TACO present new techniques and concepts or report on experiences and experiments with actual systems. Insights useful to computer architects, hardware or software developers, system designers and tool builders are emphasized.