a. 4                                                     
b. 7
c. 12                                                   
d. None of these

a. Magnetic storage                            
b. Optical storage
c. Cloud storage                                 
d. Paper storage

a. A Mechanical Input device
b. Optical Input device
c. Electronic Input device                  
d. Optical Output device

a. Edit                                                
b. Change
c. Ignore                                             
d. Ignore All

a. Electrical                                        
b. Mechanical
c. Electromagnetic                             
d. Laser

a. Gmail                                              
b. Yahoo
c. Whatsapp                                       
d. All of these

a. Vnel                                                
b. Inet
c. Arpanet                                         
d. NSFNet

a. USSR                                             
b. UK
c. USA                                               
d. Japan

a. Ken Thomson                                 
b. Von Neuman
c. Dennis Ritchie                               
d. Charles Babbage

a. Text box                                        
b. Note box
c. Text layer                                       
d. Comment box

a. Temp                                              
b. Memory
c. Static                                              
d. Cache

a. Current Slide                                  
b. Previous Slide
c. New Slide                                      
d. All of above