LOGIC CIRCUIT

#1. What is an EPROM?

• AA memory that erases itself when the computer is switched off.
• BA memory that cannot be erased.
• CA memory that retains data when the computer is switched off but that can be re-programmed when necessary.
• DA memory that retains data when the computer is switched off and cannot be re-programmed.

#2. Which of the firewire elements must be activated to ring the fire bell in circuit below?

• AA + B or C + D.
• BA + C or B + D.
• CA + D or C + D.
• DAny of the above.

#3. What is a ROM?

• AA memory that erases itself when the computer is switched off.
• BA memory that cannot be erased.
• CA memory that retains data when the computer is switched off but that can be re-programmed when necessary.
• DA memory that retains data when the computer is switched off and cannot be re-programmed.