Classifier Instance:

Anchor text: Atari 2600
Target Entity: Atari_2600
Preceding Context: After the first few months following its release in Japan, the game became very popular. Specialty arcades opened with nothing but Space Invaders cabinets, and by the end of 1978, Taito had installed over 100,000 machines and grossed over $600 million in Japan alone. Within two years by 1980, Taito had sold over 300,000 Space Invaders arcade machines in Japan, in addition to 60,000 machines in the United States, where prices ranged from $2000 to $3000 for each machine, within one year. The arcade cabinets have since become collector's items with the cocktail and cabaret versions being the rarest. A shortage of 100-yen coins—and subsequent production increase—in Japan is attributed to the game, within a year after its release. By mid-1981, more than four billion quarters, or $1 billion, had been grossed from Space Invaders machines, and it would continue to gross an average of $600 million a year through to 1982, by which time it had grossed $2 billion in quarters (equivalent to $4.6 billion in 2011), with a net profit of $450 million (equivalent to $1 billion in 2011). This made it the best-selling video game and highest-grossing entertainment product of its time, with comparisons made to the then highest-grossing film , which had grossed $486 million in movie tickets (costing $2.25 each on average) with a net profit of $175 million. Space Invaders had earned Taito profits of over $.5 billion. The 1980
Succeeding Context: version was the first official licensing of an arcade game and became the first "killer app" for video game consoles by quadrupling the system's sales. It sold over two million units in its first year on sale as a home console game, making it the first title to sell a million cartridges. Other official ports of the game were made for the Atari 8-bit computer line and Atari 5200 console. Taito released it for the NES in 1985 (Japan only). Numerous unofficial clones were made as well, such as the popular computer games Super Invader (1979) and (1981).
Paragraph Title: Impact and legacy
Source Page: Space Invaders

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