Astrological sign of a sign are together sufficient to define it, they can be grouped to indicate their symbolism. The first four signs, Aries, Taurus, Gemini and Cancer, form the group of personal signs. The next four signs, Leo, Virgo, Libra and Scorpio form the group of interpersonal signs. The last four signs of the zodiac, Sagittarius, Capricorn, Aquarius and Pisces, form the group of transpersonal signs. Dane Rudhyar presented the tropical zodiac primary factors, used in the curriculum of the RASA School of Astrology. The tropical zodiac is the zodiac of seasonal factors as opposed to the sidereal zodiac (constellation factors).
Tapwave Zodiac initially available in two models, Zodiac 1 (32MB), and Zodiac 2 (128MB). The Zodiac 2 was $100 more expensive than the original Zodiac. Games which utilized some or all of the Zodiac's hardware/software are incompatible with standard Palm OS devices. This does exclude platforms outside of Palm OS (e.g., Doom II is also out for PC, but the Zodiac version listed here won't run on standard Palm OS handhelds). This list also excludes standard Palm OS games which are also available for Zodiac handhelds, which were either identical or slightly improved on Zodiac, called "Zodiac tuned" (e.g. a game available