What is CD ROM is a

Question

CD ROM is a
1. Semiconductor Memory
2. Magnetic Memory
3. Transistor Memory
4. Memory made of Organic Materials

Answer 1

Correct Answer - Option 1 : Semiconductor Memory

Semiconductor memory is a type of semiconductor device tasked with storing data. There are two electronic data storage mediums that we can utilize, magnetic or optical.

Optical storage:

• Stores data optically, uses a laser to read/write.
• Not affected by magnetic fields.
• Has less storage than a hard disk.
• Data accessing is high, compared to a floppy disc.
• Optical storage devices are; CD-ROM, CD-R, CD-RW, DVD, etc.

Hence, CD ROM is a type of Semiconductor Memory.

Magnetic storage: 

• Stores data in magnetic form.
• Affected by magnetic fields.
• Has high storage capacity.
• Doesn't use a laser to read/write data.
• Magnetic storage devices are; Hard disk, Floppy disk, Magnetic tape, etc.

There is also volatile memory. This is a memory that loses its data once power is cut off, while non-volatile memory retains data even without power.