Track Density and Areal Density
The track
The earliest PC hard disks had only a few hundred tracks on them, and used larger 5.25″ form factor platters, resulting in a track density of only a few hundred tracks per inch. Modern hard disks have tens of thousands of tracks and can have a density of 30,000 tracks per inch or more.
The chief obstacle to increasing track density is making sure that the tracks don’t get close enough together that reading one track causes the heads to pick up data from adjacent tracks. To avoid this problem, magnetic fields are made weaker to prevent interference, which leads to other design impacts, such as the requirement for better read/write head technologies and/or the use of PRML methods to improve signal detection and processing.
Data recovery Salon welcomes your comments and share with us your ideas, suggestions and experience. Data recovery salon is dedicated in sharing the most useful data recovery information with our users and only if you are good at data recovery or related knowledge, please kindly drop us an email and we will publish your article here. We need to make data recovery Salon to be the most professional and free data recovery E-book online.
World’s Top Data Recovery Hardware Tools
Head Replacement Tools; HDD Platter Swap Tools; Data Recovery Equipment; Data Recovery Books, all are available in one stop
2015-2018 Top Rated Data Recovery Tools
HDD Repair And Data Recovery For All Hdd Brands;
Repair Or Recovery Multiple Hard Drives At The Same Time;
Disk image, file extraction, fw repair, password removal, smart reset, bad sector repair all in one hardware;
Top-rated technique support and remote support;
Free software upgrade for the first three years;
Many happy users worldwide.