Match List-I (Computer part) with List-II (Details) and choose the correct answer from the options given below.
List I
i.ALU
ii.Control Unit
iii.Pen drive
iv.Main memory
List II
a.Immediate Access Store (IAS)
b.Arithmetic and logic operations
c.The CPU part that manages input and output operations
d.Secondary storage device
Ai-b, ii-c, iii-d, iv-a ✓ Correct
Bi-a, ii-b, iii-c, iv-d
Ci-c, ii-d, iii-a, iv-b
Di-d, ii-a, iii-b, iv-c
Correct answer: (A) i-b, ii-c, iii-d, iv-a
Explanation
The ALU performs arithmetic and logic operations, so i pairs with b.
The control unit is the CPU part that manages input and output operations by directing the flow of data, so ii pairs with c.
A pen drive is a secondary storage device, so iii pairs with d.
Main memory acts as the immediate access store (IAS) that the CPU reads and writes directly, so iv pairs with a.
The ALU and control unit together form the central processing unit.
Main memory is primary storage using RAM, whereas a pen drive is portable secondary storage.
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