Test: Computer Basics - Class 3 MCQ

Lady Ada Lovelace wrote the world's first machine algorithm for an early computing machine, i.e., Analytical Engine.

Dust or liquid items can damage internal components of computer such as motherboard. This is the reason that it should be protected from dust and liquid items.

Unjumbled words in sequence are: Accurate, Fast, Versatile and Monotony. A computer never gets bored, so monotony is not related to its Characteristics

The devices mentioned in the question and the time they were invented/ designed is shown below. Abacus-1300 A.D., Pascaline-1642-1645, Napier's Bones- 1617, Stepped Reckoner-1672-1694, Analytical Engine -1837 According to the given information, the machines will be arranged as follows: Abacus, Napier's Bones, Pascaline, Stepped Reckoner, and Babbage?s Analytical Engine.

The image shown in the question is of laptop, which is a battery operated general purpose microcomputer. So, both the statements are true about it.

The image shown in the question is of a microprocessor, which contains all the functions of a CPU and when a computer is powered on, then the CPU is the first component that is initialized.

Napier's bones is a manually-operated calculating device created by John Napier.

The wallpaper is the image that appears behind the icons on your computer's desktop—that's why it's usually called a desktop background.

A computer which is designed for individual use and contains a microprocessor as its Central Processing Unit, is called a microcomputer. All four options 1, 2, 3 and 4 shown in the question are designed for individual us and have microprocessor. So, option [D] is the correct answer.

A computer is made up of many different parts and these parts are connected with the computer with different types of cables.