Answer:
Popular Electronics  is the correct answer.
Explanation:
It is the first magazine that released in the year 1975, Jan. The following magazine is about the initial microcomputer kit which for the Mits Altair.
So, that's why the following answer is not false because it is the first magazine that released the article about the following microcomputer kit that is update on the cover of the magazine.
 
        
             
        
        
        
Answer: A) Battery backup
 
Explanation: 
  A battery backup are used to provide the source of power backup to various hardware components and desktop computers. In many cases, the devices are plugged into UPS ( uninterruptible power supply) for backup power and it is also depend upon the size of the UPS. 
All the battery backups are located inside so that is why, the devices are heavy in weight. Usually, the battery backup front required additional button for performing various functions. 
And the battery backup devices are manufacture by using the varying degree of backup abilities.