A read gap, a write gap, and two edge erase gaps to produce clean tracks when writing. In early heads all gaps used magnetic coils, most modern ones use a different technology (e.g. magneto resistive) on the read head.
who is the largest manufacturer of memory is made up of hard disk drives
Computer hard disk drives may be made of a stack of one or more disks (made out of metal or ceramic) covered in a magnetic "paint". Each of these disks is called a "platter".
Magnetic storage is used on hard drives and floppy disks. Sectors of the disk are charged magnetically and are easily changed later. Optical storage uses a laser to read data. On a cd/dvd, the laser picks up tiny marks made starting in the center and rotating outward.
who is the largest manufacturer of memory is made up of hard disk drives
It can be made portable, but would have to be physically removed from one computer and installed in another one. So they are not generally used in that manner.External hard drives are the drives associated with portability.
platters
Aluminum with a ferromagnetic oxide coating was what the hard disk was made of in older disk drives. This was SOP back in the day. Today, we still see aluminum, but we also see glass and a couple of other minor contributors. And we've moved away from iron-based magnetic media to cobalt-based. Need links? You got 'em.
The "case" of the computer is the box that holds all the computers parts. Hard Drive, Motherboard, Disk Drives, etc. Computer Cases are often made of aluminum of plastic
In the old days, computers had floppy drives. They usually had two, so you could put a program disk in drive A, and a data disk in drive B.Later computers kept two drives so they could support both formats: 5 1/4 inch, and 3 1/2 inches. By this time, hard drives were universal, and almost always installed as the C drive.AnswerOriginally, computers used floppy drives. The first drive was called "A:", then computers had 2 drives, A and B. Then... hard drives
Hard disk platters are typically made of a thin layer of metal, such as aluminum or glass, coated with a magnetic material that stores data.
If it's not already there after the hard drive replacement, then it should be on the backup you made, if you made a backup, if not, swap hard drives, run the backup wizard, reswap hard drives, restore from backup
The first hard drive was made in Silicon Vally. The hard drive was made by a company, IBM.