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In order to calculate the risk involved in insurance, persons having specialized knowledge and training are required. Due to the extended tenure of Life Insurance policy, the calculation of insurance liability risk as a percentage of received premium amount becomes even more important. The persons who calculate such liability are called actuary.

(d) All of the above

The business between two businesses in e-commerce is called B2B.

A Central Processing Unit (CPU) is the brain of a computer system. It controls all the operations and consists of, arithmetic and logic unit and control unit.

Mini computers: 

The capabilities of a Mini computer are between Mainframe and Personal computer. These computers are used in business, education and many other government departments. Although some Mini computers are designed for a single user, yet most of them are designed to handle multiple terminals. These computers are used as web servers. Single user Mini computers are used for sophisticated design tasks.

This means a computer completes every task given to it without taking any break. Unlike humans, it is reliable, accurate and does not get tired.

Computer understands only machine language, which is in the form of binary codes of 0 and 1. So it is also termed as binary language.

The letter “E” in e-commerce is a short form of electronics, and “commerce” implies business transactions. Thus, e-commerce means such a transaction in which sellers and buyers execute business exchange through the internet without exchanging documents or without meeting each other. This business is done through computer and internet.

Classification and processing of E-commerce transactions: 

1. Business To Business Transaction (B2B) – The business transaction done between two businesses is called B2B transaction. 

2. Business To Consumer Transaction (B2C) – The business transaction done between Business and Consumers is called B2C transaction. 

3. Consumer To Business Transaction (C2B) – The business transaction done between consumer to business is called C2B transaction. 

4. Consumer To Consumer Transaction (C2C) – The business transaction done between two consumers is called C2C transaction.

E-commerce has two aspects – Direct and Indirect. In Indirect aspect, the product is only information which is sent through the computer.

For example: 

A newspaper. Today, many newspapers are read through the internet only. In the same way, documents, books, mail, verbal messages, music, film, photograph, market prices, direction to withdraw or deposit money, etc. are mere information. They can easily be sent through the internet.

The second aspect is direct, which includes all those products which are not mere information. A trader can display his product to you on the internet. The transaction is executed through a computer and then the product is sent to the customer’s home. Advertisements are given, order for the product is given, and the shopkeeper can provide information about his product in any corner of the world, sitting back at home.

Now traders do not need to open their stores at various locations and also do not need to appoint agents. Reverse advertisements are also given freely, that is, the buyer can put such information on the internet that he needs a product of a certain quality or a certain range.

(a)  Program

Mathematical operations, such as addition subtraction are performed by ALU.

One Byte represents 8 bits.

(c) Softcopy

(c) Input Unit

(b) Analog Computer

Data is unprocessed raw facts. It is the input to an information system. Information is organized facts with some meaning. It is output to an information system.

1. In the first picture it is covered by snow. 

2. In the second picture the same tree has fully grown leaves. 

3. In the third picture the same tree is sprouting leaves. 

4. In the last picture ripe red leaves are falling from the same tree.

The photographs are different in different seasons. If the earth’s axis is not tilted, the northern most area on the earth may get freezed. We cannot find any vegetation there.

This happens if the Earth’s axis is not fitted. Andhra Pradesh is in tropical belt. So the Sun rays fall straight on this area. If the axis is not fitted, there will be continuous temperatures and summer throughout the year on this area. Rainy and winter seasons may not be possible. Most probably the three seasons may come on every day.

Answer is (B) axis

The one portion of the earth which is infront of the sun would constantly get Sun’s heat and light and the other portion would remain cold and dark. This would make both portions unfit for life-the bright half would be too hot and the dark half would be too cold. This would happen if the earth did not rotate on its own axis.

Answer is (C) half

The Sun’s rays fall straightly on Andhra Pradesh in the month of May.

CLASSIFICATION BASED ON SIZE AND CAPABILITY 

Classification of digital Computer based on size and Capability: 

Based on size and capability, computers are broadly classified into- 

(a) Microcomputers(Personal Computer): 

A microcomputer is the smallest general purpose processing system. The older pc started working on 8 bit processor with speed of 3.7MB and current pc works on 64 bit processor with the speed of 4.66 GB. Examples: IBM PCs, APPLE computers.

Microcomputer can be classified into 2 types: 

(a) Desktops 

(b) Portables 

The difference is that portables can be used while travelling whereas, desktops computers cannot be carried around. 

The different portable computers are: 

1. Laptop 

2. Notebooks 

3. Palmtop (hand held) 

4. Wearable computers 

(i) Laptop: this computer is similar to a desktop computers but smaller in size. They are expensive than desktop. The weight of laptop is around 3 to 5 kg. 

(ii) Notebook: These computers are as powerful as desktop but size of these computers are comparatively smaller than laptop and desktop. They weigh 2 to 3 kg. They are more costly than laptop. 

(iii) Palmtop (Hand held): They are also called as personal Digital Assistant (PDA). These computers are small in size. They can be held in hands. It is capable of doing word processing, spreadsheets and hand writing recognition, game playing, faxing and paging. These computers are not as powerful as desktop computers. 

Examples: 3com palmV. 

(iv) Wearable computer: The size of this computer is very small so that it can be worn on the body. It has smaller processing power. It is used in the field of medicine. For example- pace maker to correct the heart beats. Insulin meter to find the levels of insulin in the blood. 

(b) Workstations: It is used in large, high-resolution graphics screen built in network support, Engineering applications(CAD/CAM), software development desktop publishing. 

Examples: Unix and windows NT. 

(c) Minicomputer: A minicomputer is a medium-size computer. It is more powerful than a microcomputer. These computers are usually designed to serve multiple users simultaneously (Parallel Processing). They are more expensive than microcomputers. Examples: Digital Alpha, Sun Ultra. 

(d) Mainframe computers: – Computers with large storage capacities and very high speed of processing (compared to mini- or microcomputers) are known as mainframe computers. They support a large number of terminals for simultaneous use by a number of users like ATM transactions. They are also used as central host computers in distributed data processing system. 

Examples: IBM 370, S/390. 

(e) Supercomputer: Supercomputers have extremely large storage capacity and computing speeds which are many times faster than other computers. A supercomputer is measured in terms of tens of millions Instructions per second (mips), an operation is made up of numerous instructions. The supercomputer is mainly used for large scale numerical problems in scientific and engineering disciplines such as Weather analysis. 

Examples: IBM Deep Blue.

The axis of earth is tilted by 23.5°

Earth’s Tilt: Move into a sloping position. The Earth’s tilt at 23 1/2°.

(D) all the above

C) Both A and B

1. Internet 

2. Business 

3. Banking 

4. Education

A computer is not able to Think.

(b) Bit, Byte, Kilobyte, Megabyte

The smallest unit of memory is Bit.

Summer season: 

The atmospheric temperature is too hot i.e., upto 45°C. At the end of this season sometimes it rains. Plants, trees, human beings, animals long for water, food and cool air. This season is famous for watermelons, mangoes and palm fruits etc.

Rainy season: 

Heavy rains occur during this season. But temperature varies between 30°C to 35°C. We can see greenery everywhere. Cattle are well with their abundant feed. They give us plenty of milk. Many types of vegetables and mushrooms are available.

Winter season: 

Cold is heavy in this season. Temperature varies from 25°C to 30°C. Even then nights are too cold. Animals also long for warmth. During this season cauliflower, tomato and grapes etc., are available in plenty.

A computer is an electronic device that accepts input, processes the data according to a set of instructions and gives some meaningful output.

(c) Binary digits

PARAM is an example of Super Computer.

1. Single User Operating System 

2. Multi-user Operating System

(c)  Binary form

Software: A computer software is a collection of programs and procedures that instructs a computer how to perform different types of tasks. A software enhances the capability of the hardware and directs the computer to perform operations like input, processing and output.

A software can be classified into two types: 

1. System Software 

2. Application Software.

Hardware: Hardware represents the physical and tangible components of a computer i.e. the components that can be seen and touched.

Examples of Hardware are following: 

1. Input devices — keyboard, mouse etc. 

2. Output devices — printer, monitor etc. 

3. Secondary storage devices — Hard disk, CD, DVD etc. 

4. Internal components — CPU, motherboard, RAM etc.

Application software is a set of programs, developed by programmers in order to perform specific tasks. This software can be run only if a system software is present in the computer. The user can even execute these programs without having background of programming. It has various application areas like inventory control, airline or railway reservation, payroll system, banks and universities etc.

C) 365 days 5 hrs 56 mts

The six seasons are:

1. Vasantham – Mid March – Mid May 

2. Greeshrnam – Mid May to Mid July 

3. Varsha – Mid July to Mid September 

4. Sarath – Mid September – Mid November 

5. Hemantham – Mid November – Mid. January 

6. Sisiram – Mid January – Mid March

It works on Digital or Binary digits.

Arithmetic Logic Unit

Yes. They are Europe and North America.

Yes. It is Australia.

(D) December 22

The seasons occur due to the revolution and the pattern of Sun’s rays. During summer the Sun’s rays fall straightly on our area. Then the air in the atmosphere gets heated and moves up by forming low pressure belt. The winds from high pressure belt from the Indian ocean blow to this area and give rains. We receive rains after summer and in the beginning of winter due to these seasonal winds-monsoons.

Answer is (B) June 21

(A) March 21