Answer:
Sound card
Explanation:
In computer or laptop music or sound files are stored in digital form. Sound card is the the device that is used to convert the digital form of music into analog to produce the signal that is compatible with speaker or microphone.
If the speakers are not working on the laptop, means there is no sound produced on speakers. It means that sound card is not working properly.
I type of shape, or a pointing index finger
Answer:
1. DBMS
C. <em>A storage system that provides efficient access to randomly chosen items</em>
G. <em>Performs database operations requested by application software</em>
2. data mining
B. <em>The process of extracting hidden information</em>
3. hash file
A. <em>A. means of locating a particular record within a file</em>
4. index key field
F. <em>An item used to identify records uniquely</em>
5. locking protocol
E. <em>A system to guard against database errors due to performing transactions concurrently</em>
6. relation
D. <em>A structural unit (with rows and columns) in a popular database model</em>
7. roll back schema
I. <em>A "road map" of a particular database's design</em>
J. <em>To "unwind" a transaction</em>
8. SQL
H. <em>A popular language that implements relational database operations.</em>
