The PlayStation (abbreviated as PS, commonly known as the PS1 or its codename PSX) is a home video game console developed and marketed by Sony Computer Entertainment.
The PlayStation signalled Sony's rise to power in the video game industry. Its release elicited critical acclaim and strong sales; in less than a decade, it became the first computer entertainment platform to ship over 100 million units.
The console was marketed with advertising slogans stylised as "LIVE IN YOUR WORLD. PLAY IN OURS" and "U R NOT E" (red E). It features four individual directional buttons (as opposed to a conventional D-pad), a pair of shoulder buttons on both sides, Start and Select buttons in the centre, and four face buttons consisting of simple geometric shapes: a green triangle, red circle, blue cross, and a pink square.
Sony released the PlayStation in Japan on 3 December 1994, a week after the release of its rival Sega Saturn, at a price of ¥39,800. Sales in Japan began with a "stunning" success with long queues in shops. It sold 100,000 units on the first day and then two million units after six months on the market. Mostly fuelled by the success of Virtua Fighter, the Saturn had initially outsold the PlayStation in the first few weeks of launch.
According to wikipedia