Computer fundamentals pk sinha

What are the 4 fundamentals of computer?
Functionalities of a Computer
Step 1 − Takes data as input.
Step 2 − Stores the data/instructions in its memory and uses them as required.
Step 3 − Processes the data and converts it into useful information.
Step 4 − Generates the output..
Which is the best book for computer fundamentals?
Computer Fundamentals was published by BPB Publications in 2004 and is available in paperback..
Who is the publisher of computer fundamentals by PK Sinha?
Computer Fundamentals was published by BPB Publications in 2004 and is available in paperback..

What are the 4 fundamentals of computer?