The Nuts & Bolts of Astrology are Essential
Shri KN Rao mentions that we should not depend too much on Computers. The essence of his admonitions are well-meaning. I don't think that he is trying to criticise or "put-down" anybody. Astrology is similar to Mechanical Engineering, Medicine or Dentistry in that it is an in-depth Science and I remember learning Astrology especially How To Draw a Horoscope from Prof B.V. Raman's Book: "Astrology for Beginners" (That was 1995). I found that after I went through Prof Raman's book on the Technical Matters of Casting Horoscopes I had INCULCATED a more technically orientated mind which proved very helpful in later years. Merely feeding a computer with birth-data and reading the Phalams will still leave us semi-enlightened IF WE DO NOT KNOW THE BASICS ON HOW TO DRAW A CHART MANUALLY. I'm no authority on the Subject of Vedic Astrology, but I agree with Prof KN Rao that we should be able to cast a chart manually. And once we can cast a chart manually, then there is NO Harm in using Jyotish Software, -provided that you are able to COMPARE & CONTRAST your own knowledge to that which is being given out by the Jyotish Software.