In common use a "PC game" refers to a form of media that involves a player interacting with a personal computer connected to a video monitor.
Personal computers are not dedicated game platforms, so there may be differences running the same game in different hardware, also the openness allows some features to developers like reduced software cost, increased flexibility, increased innovation, emulation, creation of modifications ("mods"), open hosting for online gaming (in which a person plays a video game with people who are in a different household) and others.
Computer Space was followed in 1972 by the Magnavox Odyssey, the first home console.
Modeled after a late 1960s prototype console developed by Ralph H.
It used a black-and-white television for its display, and the computer system was made of 74 series TTL chips.
The game was featured in the 1973 science fiction film Soylent Green.
As of 2015, video games generated sales of USD 74 billion annually worldwide, and were the third-largest segment in the U. entertainment market, behind broadcast and cable TV.