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Timeline
A computer works in three steps: Input Process Output. This is also called IPO
cycle.
A computer uses its input devices, processing device and output devices to follow
each stage of the IPO cycle.
Choose the correct option.
1. What is the input in making pizza?
a. Water b. Toppings
c. Baking d. Hot pizza
2. What is the correct sequence of the working of a computer?
a. IPU b. IOP
c. IPO d. OIP
3. What is the result after processing called?
a. Input b. Output
c. Processing d. Instruction
Tick ( ) the correct statements and cross ( ) the wrong ones.
1. The letters, numbers and symbols we give to the computer are
called instructions.
2. We give instructions to the computer.
3. Milk is an output in mango shake.
Q Answer the following questions:
A
1. What is the full form of IPO?
2. What is the first step of an IPO cycle?
#Working of a Computer 25

