عدة إستفهامات حول أنظمة التشغيل ؟؟

Ok!! sector,platter,track,head ...etc , all these terms used when we talk about the Hard Disk.

Sector is an area in the track in hard disk, actually there are many sectors in each track and each one can hold 512 bytes of data.

Read/Write head is "an arm" that read data from or write data to Hard Disk.

for more info, www.google.com