Match the columns.

Match List - I with List – II.

List - I (Computing systems)	List - II (Working/output)
A.	Half Adder	I.	Has n input and 2n output
B.	Decoder	II.	CPU Storage Unit
C.	Register	III.	Used to store program at runtime
D.	Main memory	IV.	2-bit addition circuit

Choose the correct answer from the options given below:

Correct option is C

· Half Adder: A circuit that performs the addition of two binary digits (2-bit).
· Decoder: A digital logic circuit that decodes binary inputs into multiple outputs.
· Register: A small storage in the CPU used to hold data temporarily during processing.
· Main Memory: Holds data and programs during runtime.
Information Booster:
1. Half Adder: Essential for binary addition operations in computers.
2. Decoder: Converts coded data into a recognizable form, expanding it from n inputs to 2n outputs.
3. Register: Stores data and instructions that the CPU needs to execute commands.
4. Main Memory: Volatile storage used to hold data and applications.
Additional Knowledge:
· Other Types of Adders: Full adders handle carry-in values.
· Registers vs. Memory: Registers are much faster and located within the CPU.