An optical storage device in the form of a disc that

Which shortcut allows moving to the beginning of a document?

Who invented the punch card? 

Which of the following is not an example of simplex communication?

What kind of transmission mode is used for keyboard-to-computer communication?

A student is unable to access a web page despite the computer being connected to Wi-Fi. What should be checked first?

The most common encoding scheme used for text files is:

Which layer of the OSI model is responsible for transmitting raw bit streams over the physical medium?

Which programming language is popular for web development?

Which database model organizes data into tables consisting of rows and columns?

Which of the following map is also known as chorographical map?