depends on the computer
A computer hard disk or hard drive (fixed disk) is hardware.
A d2d, also known as a disk-to-disk, is where a computer hard drive is backed up to another hard disk rather than a tape or a floppy. It allows for higher speed and higher capacity.
huge capacity between 500g to 1TB
A d2d, also known as a disk-to-disk, is where a computer hard drive is backed up to another hard disk rather than a tape or a floppy. It allows for higher speed and higher capacity.
The greatest nonvolatile storage capacity in the computer system is usually found in secondary storage and mostly on the hard disk. RAM on the other hand represents the greatest volatile storage capacity on a computer.
The computer's hard disk is hardware.
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Simply connect your external hard disk to your computer. Then select the songs you want to play later, copy them and paste to your computer hard drive. And after disconnecting your external hard disk you can now play the selected songs from your computer hard drive.
You can use the same method used in previous versions of Windows: Open the Windows Explorer (press Windows-E). Right-click on a disk or partition, and select "Properties", to check the free space.
Hard disk drives are a highly popular medium of computer storage because of their enormous capacity compared to other media. As a disadvantage, they are more costly and, depending on the type, have a limited lifetime.
The best way, I think to answer that is to define what a computer (or in this case the motherboard of the computer) needs to find or identify a hard disk. A hard disk needs a power source, a connector to attach it to the motherboard, and a controller to talk to the microprocessor of the computer. If any of these things fail the hard disk will not function and the computer will not recognize it. In general when you see the message "hard disk not found" its because the computer can't recognize the hard disk. This can be from a bad cable (that connects the hard disk to the motherboard), no power to the hard disk, or a failed controller. In my experience, its usually a bad cable but there are times when the hard disk itself will fail. Generally, hard disk cables are far more fragile than hard disks.
The OS is stored in the Hard Disk of the computer.