Discuss the major features of optical disk memory system.

Some major features of the optical disk memory system are that:

The optical disk system has high storage capacity and store maximum data in the optical disc.  Optical discs are very cost effective and inexpensive for manufacture the optical discs. The optical disk used the laser light for reading the data or information in the optical disk.It basically offer 27 gigabytes on the single 12 centimeter optical memory disk system.

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.