The difference between a CD Rom and a hard disk is that a CD Rom translates the information on CD's and discs. On the other hand, a hard disk stores data and useful information.
ROM stands for Read-Only Memory. This is a method of data storage that cannot be changed or deleted, but it can be viewed (hence, Read-Only). CD-ROM is simply ROM that is imprinted on a CD in a factory. It cannot be deleted or altered, but it can be viewed and used to install software.
their differences are capacity because DVD can hold much more data than a CD-Rom DVDs have faster data speeds than CD-Rom.DVD can accommodate a full movie in one disc while CD-Rom can't.DVD readers/writers work with CD-Rom but not the other way around.
The difference between a CDROM and a DVD is not only in the type and size of the content. On CDs, there is written, usually the word CD and some order things. And, on a DVD, there is DVD written on it. Although, the best way to tell is to put it in your computer and check the total size of the disc. DVD will show as 4.5 Gib or 8.7 Gib and CD will show as 690MB (more or less).
In practice, there usually isn't one. A CD-ROM is a read-only disc with a typical capacity of 650 or 700 MB (there are larger ones, but these are more rare). A "CD" can refer to a CD-ROM or one of a couple similar forms of storage media, such as a CD-R or CD-RW. Calling all three of these discs a "CD" is shorter and easier to say, and depending on what you are doing with them, the distinction isn't terribly important. For instance, a CD-R, once written to, exhibits all of the characteristics of a CD-ROM and is indistinguishable to a CD drive or player.
The difference between a CD-ROM and a hard disk is in the type of media. CD-ROMs are an optical medium and a hard disk is magnetic.
ROM is not writable, while CD-w is writable.
They are old and outdated terms. I suggest you go look for a CD-R or better yet, DVD-R
A hard disk is square and was an external hard drive. A CD-ROM is round and reads the information from a hard drive.
There are different in those but compact.
hard disk
Floppy Disk - 144 MB CD-R - 700 MB DVD-R - 4.7 GB Hard Disk - Up to 10 TB
Obsolete?
The operating system has nothing to do with the ROM chip
HDD is not Read Only Memory. Rather it is a Read-Write memory. So HDD is not the ROM.
ROM
No. ROM and RAM are primary storage. Examples of secondary storage would be floppy disk, hard disk, flash drive, etc. haahahaha
The same as the difference between a phonograph record and a phonograph. The CD-ROM is where the data is stored. the purpose of the CD-ROM drive is to read it.
CD = Compact Disk ROM = Read Only Memory Together CD-ROM means a compact disc made into a read only memory device. Rewritable cd's are not cd-roms as they are memory devices that can be rewrote to.
Since the hard disk drive uses the same data bus as the removable disk drive(s), it is usually installed adjacent to the removable disk (CD-ROM) drive(s).
Rom or secondary storage like the hard disk
A CD-ROM, or a CD drive, reads Compact Discs, most computer nowadays have DVD-Roms in them, meaning they can read cd's and dvd's A hard drive, or a hard disk, is always in the computer and cannot be modified, you cannot change the disc inside the hard drive