This helps to keep the information separate and avoid mistakes. You will have to hire additional personnel to do this and have more office space.
Uphold the separate but equal doctrine
From 1787 to 1957 this doctrine existed.
This is a homework assignment. There is a related question below.
NAACP
Advantages would be the combination of the units together in one model, less devices to carry around, and the ability to record from one format to the other or both. The disadvantages would be less flexibility with features and quality compared to separate units and the fact that many VHS formats are nearly phased out.
The doctrine of Separate but Equal was not a satisfactory solution to the question of civil rights for racial minorities. This is due to the fact that keeping the races separate was inherently unequal and racist.
the Plessy v. Ferguson case
Advantages of froth flotation include its ability to separate valuable minerals from gangue minerals, its versatility in processing various types of ores, and its effectiveness in recovering fine particles. Disadvantages may include the high cost associated with the process, the need for specialized equipment and reagents, and the generation of large volumes of waste materials.
A corporation has a legal existence separate and apart from its shareholders (or members) and, even in the case of company which is wholly or substantially held by a single person, that single person is not liable--in the absence of fraud or other limiting factors--for the debts of the company he or she has incorporated.
the Plessy v. Ferguson case
The "separate but equal" doctrine would characterize American society until the doctrine was ultimately overturned during the 1954 Supreme Court decision of Brown v. Board of Education of Topeka, Kansas.