✅ Correct Answer: Grace Hopper
Source: This question is taken from the Tehsildar Past Paper PPSC Solved
✅ Correct Answer: system program that converts instructions to machine language
Source: This question is taken from the Canal Patwari (BS-11) Irrigation ppsc past papers
✅ Correct Answer: Douglas Engelbart
Source: This question is taken from the Assistant Sub Inspector (ASI) Punjab Police Service Quota