![Seagate BarraCuda 1 TB Internal Hard Drive HDD – 2.5 Inch SATA 6 Gb/s 5400 RPM 128 MB Cache for PC Laptop (ST1000LM048) : Amazon.co.uk: Computers & Accessories Seagate BarraCuda 1 TB Internal Hard Drive HDD – 2.5 Inch SATA 6 Gb/s 5400 RPM 128 MB Cache for PC Laptop (ST1000LM048) : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/61YPszRgqSL.jpg)
Seagate BarraCuda 1 TB Internal Hard Drive HDD – 2.5 Inch SATA 6 Gb/s 5400 RPM 128 MB Cache for PC Laptop (ST1000LM048) : Amazon.co.uk: Computers & Accessories
When you buy a drive for 1TB, and you get 987GB, how is that determined and why does that happen? - Quora
![Amazon.com: Western Digital(WD) BLUE Deskptop 1TB( 1Terabyte) 3.5"Hard Disk Drive, 5400~7200RPM, SATA3 ( 6.0GB/s), 64MB Cache, IDEAL for PC/Mac/CCTV/NAS/DVR/Raid and SATA Applications, 1YR Warranty (Blue) : Electronics Amazon.com: Western Digital(WD) BLUE Deskptop 1TB( 1Terabyte) 3.5"Hard Disk Drive, 5400~7200RPM, SATA3 ( 6.0GB/s), 64MB Cache, IDEAL for PC/Mac/CCTV/NAS/DVR/Raid and SATA Applications, 1YR Warranty (Blue) : Electronics](https://images-na.ssl-images-amazon.com/images/I/71c5R4QQ6nL._AC_UL600_SR600,600_.jpg)
Amazon.com: Western Digital(WD) BLUE Deskptop 1TB( 1Terabyte) 3.5"Hard Disk Drive, 5400~7200RPM, SATA3 ( 6.0GB/s), 64MB Cache, IDEAL for PC/Mac/CCTV/NAS/DVR/Raid and SATA Applications, 1YR Warranty (Blue) : Electronics
![Gigabyte- 1,073,741,824 bytes; or 1,024 megabytes; generally abbreviated GB | Byte, Gigabyte, Terabyte Gigabyte- 1,073,741,824 bytes; or 1,024 megabytes; generally abbreviated GB | Byte, Gigabyte, Terabyte](https://i.pinimg.com/originals/ac/5f/07/ac5f07be612614694435d8db155d1d0c.jpg)