Answer:
Nelson proposed a system where copying and linking any text excerpt, image or form was possible.
Explanation:
Ted Nelson is one of the theoretical pioneers of the world wide web who is best known for inventing the concept of hypertext and hypermedia in the 1960s. As one of the early theorists on how a networked world would work.
How I know:
I goggle it.
 
        
             
        
        
        
Validity is the best asseng information to evaluate the all factors
        
             
        
        
        
Answer:
B 4 seconds
Explanation:
You should stay 4 seconds away from a vehicle at all times at the same speed as the other vehicle or vehicles.
 
        
                    
             
        
        
        
The BIOS feature that enables a hard drive to read or write several sectors at a time is called IDE block mode
Explanation:
IDE block mode setting speeds up IDE drivers when enabled by allowing multiple sectors to read or write operations. This BIOS feature rushes up hard disk drive passage by transferring many divisions of data per interrupt rather than using the normal single-sector transfer mode. 
This mode of transfer is known as block transfers. When block transfers are enabled, depends on the IDE controller, nearly 64 KB of data can be transferred per interrupt.
 
        
             
        
        
        
Answer:
the software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.