Comprehension Passage
Data is a collection of characters, numbers and other symbols that represents the value of some situations or variables. Structured and Unstructured are two types of data. Data storage is the process of storing the data on storage device so that the data can be retrieved later. There are various preprocessing cycle. Store, retrieve , classify and update is a pre processing steps. RDBMS can be used to remove the certain limitations in processing the files.
Based on the above paragraph , answer the following.
Which of the following is not a data storage device?
1
Hard Disk Drive (HDD)
2
Tape Drive
3
Central Processing Unit (CPU)
4
Data files