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● ‘Sender’ is the one who sends data, i.e., the ‘Source’ of information.
● ‘Receiver’ is the one who receives data, i.e., the ‘Destination’ of information.
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● Communication Channel’ is the media by which data is transferred, (i.e., air, wires, waves, satellite
connections, etc.) from sender to receiver and vice versa.
2. What are language processors? Name and explain the different types of language translators.
Ans. Language processors are the type of system software that helps in converting programs of high level
language to machine understandable language. Different types of language translator are:
● Assembler: An assembler is a utility program that helps to translate assembly language statements
into the machine code.
● Interpreter: An interpreter is a system software which translates high level language program into
machine code line by line.
● Compiler: A compiler translates a program that is written in high level language into machine level
language in one go.
3. What is Internet? State any four advantages of creating a Network.
Ans. Internet is the wide area network that links together millions of computers so that a wide range of users
can share and exchange information amongst themselves. Four advantages of creating a network:
● Networking is an effective way of sharing files among different nodes (connected computer).
● Networking helps in sharing of common hardware devices.
● Networking helps in quick delivery of information.
● With the help of network, data or information get transferred at a very low cost.
4. Define ‘Software’. How can it be categorized? Explain in detail.
Ans. Computer can neither think nor work on its own. It has to be provided with a set of pre-defined instructions
which are written in a computer language. Such sets of instructions are known as ‘Programs’. A set of organized
programs meant for specific purpose is known as ‘Software’. Software can be broadly classified as:
● Application Software refers to programs which are designed to accomplish particular type of tasks
to meet a user’s specific needs. Application software can be classified into two categories: Application
Package and Customized Package.
● System Software helps the user to operate the computer system & utilize its different resources.
It coordinates the operation and functioning of a computer along with the attached hardware
components of the computer. System software acts as an interface or a bridge between the user
and the computer. System software can be broadly classified into: Operating System and Language
Processor.
● Utility Software is a set of small programs that supports the execution and operation of the Computer
system by doing additional works like scanning the hard disc to check the faulty sectors, virus scanning
to check the infected files, etc. Example: WinZip, antivirus software, file management tools, compression
tools, disk management tools, etc.
C. Application based questions.
1. Ramesh is working in an organisation, and he need hard copy of sample question paper for class 1 to 8.
Which printer he should use to get good quality print at an effective speed?
Ans. Laser Printer
2. Neha's younger brother has got some home work in which he has to capture a large amount of text in a
book so as to save the time and effort of typing it in.
Ans. Optical Character Recognition (OCR)
50 Touchpad Computer Applications-IX

