Class 9 Chapter 2 Types of Computer

 Write very short answer (technical term) for the following:

a. The computers which process continuous data.

Ans: Analog Computer

b. The computers which are used in offices for general purpose

Ans: Personal Computer (PC)

c. The fastest and most expensive computer system.

Ans: Supercomputer

d. The computers that use microprocessor as their CPU.

Ans: Microcomputer

e. A computer that uses analog and digital device.

Ans: Hybrid Computer

f. The computer that uses discrete on/off system.

Ans: Digital Computer

g. The portable computer which can be used where there is no direct electricity.

Ans: Laptop

Answer the following questions:

a. How are computers classified into different types?

Ans: Computers are classified based on their purpose (general or special), data handling (analog, digital, hybrid), and size or capability (micro, mini, mainframe, super).

b. What are general purpose computers and special purpose computers?

Ans:  General purpose computers are designed to perform a variety of tasks (e.g., PCs).

Special purpose computers are designed to do specific tasks only (e.g., ATMs, traffic control systems).

c. What are the broad classifications of computer on the basis of work (function)?

Ans:  Computers are classified into Analog, Digital, and Hybrid computers based on their work or function.

d. Differentiate between analog and digital computers.

Ans: Analog computers process continuous data like speed or temperature.

Digital computers process discrete data using binary (0s and 1s).

e. How are digital computers classified on different types?

Ans:  Digital computers are classified into Microcomputers, Minicomputers, Mainframe computers, and Supercomputers based on size and performance.

f. What are supercomputers? What is their application in real life situation?

Ans: Supercomputers are the fastest and most powerful computers used for complex tasks like weather forecasting, scientific simulations, space research, and nuclear testing.

g. What are mainframe computers? Where are they mainly used for?

Ans:  Mainframe computers are large and powerful systems used by organizations for handling large-scale data processing, like in banks, insurance companies, and government offices.

h. Distinguish between mini computers and micro computers.

Ans: Mini computers are medium-sized, used by small businesses for multi-user operations.

Micro computers are smaller, used by individuals (e.g., desktops, laptops).

i. What are different types of micro computers?

Ans: The different types of microcomputers are Desktop, Laptop, Tablet, Notebook, Palmtop, and Smartphone.

j. What are the features of hybrid computer?

Ans: Hybrid computers combine features of analog and digital computers, processing both continuous and discrete data; used in hospitals, scientific labs, and control systems.

Write long answer for the following:

a. What is micro computer? Describe different types of micro computers.

b. Describe super computer with its application.

Model of very short question answer.

a. What are the computers which possess continuous data?

Ans: Analog computers process continuous data.

b. What are the computers which are used in offices for general purpose?

Ans: Personal computers (PCs) are used in offices for general purposes.

c. Which is the fastest and most expensive computer system?

Ans: Supercomputers are the fastest and most expensive computer systems.

d. What are the computers that use microprocessor as their CPU?

Ans: Microcomputers use a microprocessor as their CPU.

e. Which computer uses both analog and digital devices?

Ans: Hybrid computers use both analog and digital devices.

f. Which computer uses a discrete on/off system?

Ans: Digital computers use a discrete on/off system.

g. What is a portable computer that can be used without direct electricity?

Ans: A laptop is a portable computer that runs on battery and can be used without direct electricity.