Tao or Dao (/taʊ/, /daʊ/; Chinese: 道; pinyin:  Dào ) is a Chinese concept signifying 'way', 'path', 'route', or sometimes more loosely, 'doctrine' or 'principle'. Within the context of traditional Chinese philosophy and religion, Tao is a metaphysical concept originating with Laozi that gave rise to a religion (Wade–Giles, Tao Chiao; Pinyin, Daojiao) and philosophy (Wade–Giles, Tao chia; Pinyin, Daojia) referred to in English with the single term Taoism. The concept of Tao was shared with Confucianism, Chán and Zen Buddhism and more broadly throughout East Asian philosophy and religion in general. Within these contexts Tao signifies the primordial essence or fundamental nature of the universe. In the foundational text of Taoism, the Tao Te Ching, Laozi explains that Tao is not a 'name' for a 'thing' but the underlying natural order of the universe whose ultimate essence is difficult to circumscribe. Tao is thus "eternally nameless” (Dao De Jing-32. Laozi) and to be distinguished from the countless 'named' things which are considered to be its manifestations. In Taoism, Chinese Buddhism and Confucianism, the object of spiritual practice is to 'become one with the tao' (Tao Te Ching) or to harmonise one's will with Nature (cf. Stoicism) in order to achieve 'effortless action' (Wu wei). This involves meditative and moral practices. Important in this respect is the Taoist concept of De (德; virtue). In all its uses, Tao is considered to have ineffable qualities that prevent it from being defined or expressed in words. It can, however, be known or experienced, and its principles (which can be discerned by observing Nature) can be followed or practiced. Much of East Asian philosophical writing focuses on the value of adhering to the principles of Tao and the various consequences of failing to do so. In Confucianism and religious forms of Taoism, these are often explicitly moral/ethical arguments about proper behavior, while Buddhism and more philosophical forms of Taoism usually refer to the natural and mercurial outcomes of action (comparable to karma). Tao is intrinsically related to the concepts yin and yang (pinyin: yīnyáng), where every action creates counter-actions as unavoidable movements within manifestations of the Tao, and proper practice variously involves accepting, conforming to, or working with these natural developments. The concept of Tao differs from conventional (western) ontology: it is an active and holistic conception of Nature, rather than a static, atomistic one. It is worth comparing to the original Logos of Heraclitus, c. 500 BC

Tecmo Bowl (テクモボウル tekumo Bōru?) is an (American) football arcade game developed and released in 1988 by Tecmo. While moderately successful in the arcades, the game became and remained widely popular and remembered when it was ported to the Nintendo Entertainment System in 1989. The NES version was the first console game to feature real NFL players. Although LJN's NFL was the first NES game to feature NFL team names, it was not as successful as Tecmo Bowl. Because of this, and combined with the scarcity of the arcade version, the NES version eclipsed its arcade counterpart in popularity. The NES version was ported to mobile phones in 2004 and the North American Virtual Console on March 12, 2007 for the Wii and on September 12, 2013 for the Nintendo 3DS. The arcade version for the Wii Virtual Console came out in North America on August 3, 2009 and Japan on September 29, 2009.

Tecmo Super Bowl (テクモスーパーボウル Tekumo Sūpā Bōru), is an American football video game for the Nintendo Entertainment System (NES) that was released in 1991. Developed by Japanese video game company Tecmo, it was the first sports video game that had licensing privileges with both the league it sought to emulate (National Football League) and the player's association (National Football League Players Association), thus allowing the game to use both the names and attributes of real NFL teams and real NFL players. (Prior games used the real teams or the real players, but not both simultaneously.) Although the game was released in late 1991, all team rosters and player attributes were based on the prior 1990-91 NFL season, which means no '91 drafted rookies and no newly signed or traded players prior to the beginning of the 1991 season were added to the game. The original game utilized the 1991 NFL schedule only; therefore, playing multiple seasons with alternate schedules was not possible. The game was very successful in the final years of the NES and, although more than 20 years old, it has maintained an extensive cult following.