Computer Science

Computer Science- Unit 1 Hardware - ANS-Electronic and mechanical parts of computer system Software - ANS-Programs and data with physical computer Processor - ANS-Electronic device that does computing Main memory - ANS-RAM or Primary memory- holds program and data processor is working with. Needs constant electric power. Volatile as if no power, info in it is lost. Connected to processor, data is easily changed. Faster as connected to processor, so everything moving in and out is fast. Secondary Memory - ANS-Long term storage of programs/ data. No need for electric power. Connected to main memory through bus, stored data is easily changed, slow. Example is a hard drive. ROM - ANS-Read Only Memory- stored permanent info.