Grade-4 d PRE MID TERM EXAMINATION

Who is known as the father of computers?

• John Napier

• Charles Babbage

• Blaise Pascal

Identify the picture.

• Pascaline's Calculator

• Difference Engine

• Abacus

Where was Abacus invented?

• England

• Babylonia

• China

Which is the world's first calculator that could find square root of a number?

• Abacus

• Napier's Bones

• Pascaline's Calculator

Which is the first ever mechanical calculator with numerical wheels?

• Napier's Bones

• Pascaline's Calculator

• Leibniz Calculator

What is an IPO?

Identify the Picture of Input device

• scanner

• Webcam

• Barcode Reader

• Light pen

Full form of MICR

identify the device

• Printer

• Webcam

• Projector

• Touchpad

The ________ printers give very high-quality output.