1. first of all word GURU has been adopted in english, so its no longer a hindi word.

2. RISC is A faster computer where intruction is reduced so that executed in single cycle (ideal RISC).

3. no instruction of risc can be divided in terms of other instructions. so RISC wont have MUL div like instruction. in CISC you will find such instruction. some CISC have instruction for even matrix multiplication.

there are more better read following books


1. computer architecture MM MANO
2. COMPUTER ORGANIZATION JP HAYS
3. DIGITAL COMPUTER ARCHITECTURE HAMACHER
4. PARALLEL COMPUTIN AND COMP. ORG. BRIGGS



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