Zeeshanmahdi#20

Chapter # 20

Information Technology Q#1: Choose the correct answer of the statement from the given choices I.

The scientific method of storing and arranging the information is called (a) Telecommunication (b) Management (c) data processing (d) Information Technology

II.

The process of communicating information to far off places instantly is called (a) Telecommunication (b) Management (c) data processing (d) Information Technology

III.

To collect all information regarding a subject for any purpose and to store them in computer which may help when needed is called (a) Telecommunication (b) Management (c) data processing (d) Information Technology

IV.

The working principle of telephone is similar to ______________ (a) Telegraph (b) fax (c) telex (d) radio

V.

Graham bell was discovered ______________ (a) Telecommunication (b) Management (c) data processing (d) Information Technology

VI.

Marconi was a/an _____________ scientist (a) Muslim (b) Russian (c) Italian (d) French

VII.

_____________ can send document from one place to other through telephone line. (a) Fax (b) Telegraph (c) Telegram (d) Telex

VIII.

_____________ can send document from one place to other through telephone line. (a) Fax (b) Telegraph (c) Telegram (d) Telex

IX.

Fax machine gets a reflection of the document like (a) Photo state (b) Telegraph (c) Telegram (d) Telex

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X.

Radio signals are transmitted in the form of _____________ signal. (a) Sound (b) electrical (c) magnetic (d) electromagnetic

XI.

Before converting the document into electrical signal, it has to be typed on _________ (a) Fax (b) Telegraph (c) Telegram (d) Telex

XII.

_____________ Machine reproduces the signals in an image print on the paper. (a) Fax (b) Telegraph (c) Telegram (d) Telex

XIII.

Picture and sound reaches us via _________ waves on a TV. (a) Radio (b) electrical (c) magnetic (d) electromagnetic

XIV.

Instead of broadcasting, electromagnetic waves are sent via ____________ (a) radio waves (b) cable (c) pulses (d) non of these

XV.

Computer is a/an ___________ machine. (a) Electronic (b) magnetic (c) mechanical (d) electrical

XVI.

Physical parts of computer are called ____________ (a) Output devices (b) input devices (c) soft ware (d) hard ware

XVII.

Non-physical parts of computer are called__________ (a) Output devices (b) input devices (c) soft ware (d) hard ware

XVIII.

The devices which are used to receive information from computer are called ______ (a) Output devices (b) input devices (c) soft ware (d) hard ware

XIX.

The devices which are used to enter data into the computer are called____________ (a) Output devices (b) input devices (c) soft ware (d) hard ware

XX.

CPU stands for _______________unit (a) Control of personal (b) central processing (c) central control (d) Controlling panel

XXI.

TCP stands for_________ (a) technical control part (b) transmission control protocol (c) transmission corporation protocol (d) tele-communication protocol

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XXII.

IP stands for _______________protocol (a) Introductory (b) intelligence (c) internet (d) information

XXIII.

Audio cassette consist of a tape of _________________ material (a) Conducting (b) electrical (c) magnetic (d) electromagnetic

XXIV.

CD stands for_____________ . (a) Compact disc (b) control direction (c) communication device (d) control disc

XXV.

Floppy disc can store 1.44 ____. (a) B (b) GB (c) KB (d) MB

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Q#2: Give short answer of the following questions I.

What is the effect of progress in science and technology?

Ans: The rapid progress in science and technology has broadened the span of information of the mankind and is enhancing day by day. II.

What do you mean by information technology? Ans: The scientific method of storing, arranging information for proper use and to communicate them to other is called the information technology.

III.

How can you explain the telecommunication? Ans: That method that is used to communicate information to far off places instantly is called telecommunication.

IV. Ans: V.

On which principle does a telephone works? The working principle of telephone is similar to telegraph, but How a telephone is better than the telegraph?

Ans: Telephone is advance than telegraph because direct conversation is possible by telephone. VI. Ans: VII.

Which thing changes voice in electrical signal? An electromagnet and a vibrating diaphragm change the voice into electrical signal. Which thing converts electrical signal in voice?

Ans: An electromagnet and a vibrating diaphragm change the electrical signal into voice. VIII. Ans: IX. Ans: X.

On which technology mobile phone works? Radio technology is applied in a mobile phone. Which electronic circuits are present in a mobile phone? A mobile phone carries a radio transmitter and a receiver inside it. Which is the latest form of a mobile phone?

Ans: Photo phone is the latest form of mobile phone. XI.

How a telex machine works?

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Ans: Telex machines send the document through telephone cables by electrical signals to the other telex machine where original print is received.

XII.

Why we use fax machine?

Ans: Documents of considerable Importance are sent from one place to the other through fax machine using telephone lines. XIII.

How a fax machine works?

Ans: Fax machine first gets the reflection of the document like a Photostat machine, changes it to electrical signal and then transmit via telephone lines. XIV.

In which form a message is sent from a radio station?

Ans: Message is sent from a radio station in the form of electromagnetic waves. XV.

What is a computer?

Ans: Computer is an electronic machine that works according to given information. XVI.

Define input devices?

Ans: The devices which are used to enter data to the computer are called input devices. XVII.

Define output devices?

Ans: Those devices of computer which are used to get information from the computer are known as output devices. XVIII.

What is a CPU?

Ans: it is a central Processing Unit. XIX.

What is an E-mail?

Ans: it stands for electronic mail, used for latest communication. XX.

What do you mean by Internet Protocol?

Ans: All computers linked with the internet use uniform communication process and same code. In the internet terminology, it is called Protocol. There are two main types of Protocol, (a) TCP (b) IP XXI.

What do you mean by TCP?

Ans: it is the abbreviation of Transmission Control Protocol.

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XXII.

What do you mean by IP?

Ans: it is the abbreviation of Internet Protocol. XXIII.

What do you mean by http?

Ans: it is the abbreviation of Hyper Text Transferee Protocol. XXIV.

What is a remote?

Ans: A device which can control any device without any direct control (cable), but with infrared system. XXV.

How a remote works?

Ans: When any button placed at the panel of remote is pressed, the bulb in it generates a particular binary code signal. This signal emits, from the light emitting diode, when these radiations fall on the lens fitted in a television or any other device a photo transistor attached with the lens identify and send them to circuit which decodes the binary signal and issue the order accordingly. XXVI.

Which radiations are used in a remote?

Ans: Infrared radiations are used to operate any device with remote XXVII.

What are electronic storage devices?

Ans: There are a number of storage devices such as, audio-video tapes, compact disc, laser disc, floppy disc and hard disk are commonly in use. XXVIII.

Define audio cassette?

Ans: Audio cassette consists of a tape of magnetic material on which sound is saved in a particular form of a magnetic field. XXIX.

In which form information stored on an audio cassette?

Ans: Sound is saved on an audio cassette in a particular form of a magnetic field. XXX.

Which is reader from the audio cassette?

Ans: The play back head is used to produce voice again from an audio cassette. XXXI.

What do you mean by CD?

Ans: CD stands for Compact Disk. XXXII.

What do you mean by ROM?

Ans: ROM stands for Read Only Memory.

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XXXIII.

What do you mean by RAM?

Ans: RAM stands for Read Only Memory. XXXIV.

What is floppy disc?

Ans: Floppy disc is made up of flexible plastic which is coated with ferromagnetic compound. XXXV.

What is the purpose of protect notch?

Ans: it is used for the protection of data present on the disc and also for the protection of new entrance of data. XXXVI.

What is the purpose of central hole on the floppy disc?

Ans: This hole is used for the rotation of spinning of the floppy disc present inside the envelope. XXXVII.

What is the purpose of index hole?

Ans: This hole is used for the identification of starting position of the disc track. XXXVIII.

What the purpose is of read and write hole?

Ans: Disc drive head R/W using this hole can read and write the data through this hole. XXXIX.

How much data can be stored on floppy disc?

Ans: A floppy disc can store a data of about 1.44 MB. XL.

What is the advantage of hard disc drive?

Ans: Hard disc has higher speed and larger capacity as compared to other discs. XLI.

What is word processing?

Ans: To type something ‘by computer’s keyboard, to correct, to arrange, to amend the document, to add and delete the written portion when required is called ‘the word processing’. XLII.

What is Graphic Design?

Ans: The process to draw a required line or pictures on a computer screen using mouse or keyboard is called the Graphic Design. XLIII.

What do you mean by data management?

Ans: To collect all information regarding a subject for any purpose and to store them in the computer in more than one interlinked files which may help when needed is called ‘data processing’.

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Long Questions Q#3: (a) What is the process of advancement in telecommunication? (a) What is the difference in telex and fax machine, how they works? Q#4: (a) What is the difference in radio and television? (b ) Write note on the advancement of telecommunication? (b) Briefly explain the remote? Q#5: What is a computer and explain its different parts according to their works? Q#6: (a) Write a note on the advantages and disadvantages of internet? (b ) Explain the protocols of internet? Q#7: Explain the working principle of compact and hard disc? Q#8: Compare the floppy and audio video discs? Q#9: What do you mean by word processing and graphic designing?

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