BCA Computer Fundamentals and Applications

What is the difference between abstraction and encapsulation?

What is ambient reality? How it differs from augmented reality?

What is Coroutines?

What is the value of pi?

Utility software helps to maintain proper and smooth functioning of a computer system. Justify it with proper examples.

What is primary memory? Differentiate between static and dynamic RAM.

Why do we need to use DBMS? How does relational model represent both data and relationship among those data? Explain.

What is e-commerce? Explain the benefits of e-commerce.

a) What are the uses of word processing software? List and explain the major controls available in Layout tab of MS-word.
b) Write DOS commands for the following tasks:i. To create two folders Folder1 and Folder2 at the current prompt directory
ii. To create files file1.txt in Folder1 and file2.txt in Folder2 directories
iii. To copy the content of file1.txt to file2.txt 
iv. To rename the file File2.txt as CopiedFile.txt 
v. To locate the IP address of your network

a) What is computer virus? List the symptoms of a computer virus in a computer system. Also explain the prevention techniques.
b) What is the use of mask in Photoshop? Explain different controls available in Photoshop for editing an image.

Why do we need to use protocols while transmitting data on the network? Will it be secure to transfer data through the network? Explain OSI model in detail.

Why do we need to use protocols while transmitting data on the network? Will it be secure to transfer data through the network? Explain OSI model in detail.