Correct Answer:
B. Optical discs (CDs, DVDs)
Lasers are fundamental to reading and writing data on optical discs like CDs and DVDs, enabling high-density data storage.
Related MCQs
Which key is used to edit the selected cell in excel?
A.
F1
B.
F2
C.
F3
D.
Edit
Correct answer is:
B. F2
To replace a word with another word throughout the document, you would use the "Replace" feature found under which tab?
A.
Home
B.
Insert
C.
Design
D.
Layout
Correct answer is:
A. Home
The process that produces results of processed data for getting useful information is known as:
A.
Control
B.
Storage
C.
Processing
D.
Output
Correct answer is:
D. Output
The portion of the process scheduler in an operating system that dispatches processes is concerned with __
A.
a) assigning ready processes to waiting queue
B.
b) assigning running processes to blocked queue
C.
c) assigning ready processes to CPU
D.
d) all of the mentioned
Correct answer is:
C. c) assigning ready processes to CPU
Which of the following is not a type of database?
A.
a) Hierarchical
B.
b) Network
C.
c) Distributed
D.
d) Decentralized
Correct answer is:
D. d) Decentralized
The tool in MS Word that allows users to send letters or documents to many contacts is called:
A.
Mail Merge
B.
Email
C.
Data Source
D.
Address Book
Correct answer is:
A. Mail Merge