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4. Answer the following:
a. What is joystick?
b. What is Touchscreen?
c. What is a printer? Write the names of the different types of printer.
d. What is the role of CPU?
e. What is difference between System software and Application software?
f. What is a primary memory?
g. What is a byte?
h. Differentiate between RAM and ROM.
i. What is a Blu-ray Disc?
48 Premium Edition-VII

