Computer Structure & Logic Hdd Worksheet

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Understanding Concepts 1. What is the function of the hard disk drive in a computer? Long-term, non-volatile data storage. 2. The disks inside of a HDD are called _____________ . Platters. 3. What is RPM a measure of? The revolutions per minute the platters are spun by via a spindle & electric motor. 4. Data is written and read on to the disk by the ______________________ . The read/write (r/w) head. 5. What does an actuator arm do? Moves across the platter as it spins to read and write data. 6. Explain how magnetism is used to form 1s and 0s: The magnetism arranges the medium on the platter into north & south poles. It then floats nanometers above the platter. 7. Explain how can a disk drive be physically damaged: Any dust or debris that gets caught in-between that small space where the r/w floats will cause it not to fit resulting in a crash. 8. Data is organized on the disk in _____________ . Those are then mapped into ____________ . Then those are cut into pie-shaped wedges called _____________ . Clusters, tracks, sectors. 9. EIDE stands for: Enhanced Integrated Drive Electronics 10. SATA stands for: Serial Advanced Technology Attachment 11. SCSI stands for: Small Computer System Interface 12. How do IDE drives transfer data? Parallel format or Parallel Advanced Technology Attachment (PATA) 13. How many pins are in an IDE controller? 40 14. If two drives are connected to an IDE ribbon cable then one drive is the __________ and the other drive is the __________ drive. Master & Slave IDE 15. Modern motherboards contain _______ IDE controller 1 16. How many IDE drives can be attached to one IDE controller? 2 17. Explain why there is a colored wire on a ribbon cable? Ease of installation & to specify pin #1 which is connected to both the motherboard and IDE HDD controller pin #1 and to the hard drive pin #1. 18. What is

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