1.Which of the following circuit is used as a 'Memory device' in computers?
A. Rectifier
B. Flip Flop
C. Comparator
D. Attenuator
E. None of these
Explanation :A flip-flop or latch is a circuit that has two stable states and can be used to store state information as Memory devices.
2.Basic Building Blocks for a Digital Circuit is ______
A. CMOS
B. Logic Gate
C. BIOS
D. DMOS
E. None of these
Explanation :A logic gate is an elementary building block of a digital circuit. Most logic gates have two inputs and one output. At any given moment, every terminal is in one of the two binary conditions low (0) or high (1), represented by different voltage levels.
Source : TinkBox.ph