class 7th 1st Q&A

7/28/2019 class 7th 1st Q&A

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RAO's MY TECHNO SCHOOL

Class: VII COMPUTER FUNDAMENTALS

Chapter: 1

Question and Answers

1) What are supercomputers? Write two

differences between supercomputers andmainframes?

A)Super computer is one that is capable of workingat high speeds, and can process a very large amount

of data within an acceptable time.

Differences1) Super computers are structured to support very

complicated and complex calculation that are

processed and stored largely in the memory.2) Super computers are used for processingscientific and military data.

1) Mainframes aim to handle huge amounts ofexternal data accessed from databases involving

simple calculations.

2) Mainframes are meant for business and civiliangovernment applications.


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2) What is an operating system? Why is anoperating system a must for a computer?

A) Operating system is the interface between

user of computer and computer hardware.

It is an important component of the computer

system, because it sets the standards for theapplication programs that run on it. Operating

system controls the execution of programs.

3) What are the main functions of a compilerand an interpreter? Write the differencebetween them?

A) Compiler is a program that takes a program

written in a high-level language and translatesinto Machine language.

An interpreter is a program that analyzes each

line of code in the high level language programthe source program and then carries out the

specified actions.


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Difference The program produced by the compiler is saved

permanently for future reference. Compilerworks faster.

The object code of the statement produced by

an interpreter is not saved. An interpreter worksslower.

4) Name the two types of low-level languages?A)

Machine languages

Assembly languages

5) What are high level languages? Write threeexamples?

A)

High level languages emerged in mid-1950s.they are

widely used in developing programs. The high levellanguage is easier for the programmer to use than

the low level languages. High-level languages aremachine independent.EX: BASIC, COBOL, FORTRAN, C++


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Class: VII FORMULAS IN MS EXCEL Chapter: 2

QUESTION AND ANSWERS

1) Write the four elements that an excelformula can contain?A)

Value:-numeric (such as 3, 32, 3.3) or, string

(such as poonam, Rajan) Cell/Range of cell reference: A5, A6...

Function: SUM, AVG, MIN, MAX... Operator: +,-,*...

2) What things should we remember while

writing a formula in a formula bar?A)

Values may be numeric or string. All four

mathematical functions are possible only with

numeric values. Only addition is possible with atext string or text values.

A reference identifies a cell or a range of cells in

a worksheet. It tells MS Excel where to findvalues or data that are needed in a formula.


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3) What do you understand by concatenation?Explain with an example.

A)

No mathematical function except addition can be

performed on a sequence of characters. Theprocess of joining text values in a series is called

concatenation. Ex:-to create a simple text value, type words in

double quotes ex English. To concatenate twotext values, we use the ampersand (&)

character. =English & Hindi. In the formula bar and pressing enter will

produce the result as English Hindi.

4) Describe the AutoSum feature of MS Excel?

A) The auto sum feature automatically calculates theSum of numbers.

5) What is a function?

A) A function is a predefined formula for performing

a particular task.


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Class: VII MORE ON MS EXCEL 2007 Chapter: 3


1) What do you mean by the term sorting of

data?A)

Arranging the given data in a specified order is calledsorting.

2) What is data filtering in MS Excel?

A) The filter feature helps us to hide that part of theinformation entered in the worksheet that we do notwant to see. Filtering is an easy method for finding

and working with parts of data in a range.

3) Name the two options available in MS Excelfor data filtering?

A) Auto filter

Advanced filter


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4) What is the difference between filtering andsorting data?

A)

The filter feature helps us to hide that part of

the information entered in the worksheet thatwe do not want to see. Filtering is an easy

method for finding and working with parts ofdata in a range.

Sorting is a very important feature of MSExcel.

Sorting means arranging the given data in aspecified order. The data may be textual,

numeric or alphanumeric.

5) What do you understand by the term

conditional Formatting?

A) Conditional formatting is an important featurein MS Excel. It determines a cells format accordingto the specified conditions specified by the user.


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Class: VII CHARTS IN MS EXCEL 2007Chapter: 4


1) Write the use of charts in MS Excel?

A) Charts represent any information in veryinteresting and effective manner. They make the

information easier for the readers to understand andinterpret.

2) Build any five charts in MS Excel?

A)

Column chart

Pie chart

Bar chart

Area chart

Scatter chart

3) Write short notes onA)

(i) column chart

A) A column chart represents the changes in dataover a period of time.

(ii) Doughnut chart

A)A doughnut chart displays the relationship of

parts or a whole.


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(iii) Scatter chart

A) It is similar to XY chart. No lines appear in this

type of chart to represent the data marks.

(iv) Pie chart

A) A pie chart is useful to plot data for a single data

series.

4) Write the difference between a column chartand a bar chart?

A)

Column chart mainly illustrates a comparison

among items. In this chart, categories are takenhorizontally values vertically. In a column chart,

each of the columns that rise from the X-axisrepresents data point in a series.

Bar chart is also used to see comparisons

among individual items. Categories areorganized on the Y-axis and values are

organized on the X-axis. We can also describe itas a column chart drawn sideways.


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5) Name and briefly describe any fivecomponents of a chart?A)

Data series

X-Axis

Chart title

Axis title

Chart Area

1) Data series:-

A) It refers to those data series from which a chart isderived.

2) X-Axis:- x-axis is the horizontal axis of the chart.

It is also called the category axis.

3) Chart title: - it is usually written at the top of thechart and helps the reader to understand what the

chart represents.

4) Axis title:-It is the title given to the axes. A 2-D graph has two

axes(X and Y) and a 3-D graph has three (X, Y andZ).

5) Chart Area: - it refers to the area within which

all chart components are found.


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6) What steps do we use to change the chart

style?

A)

Step1:-The chart tools under design top appearautomatically.

Step-2:-click change chart style in Design if you

want to change the chart style for your data.

Step-3:-a change chart style dialog box appearswith many figures.

Step-4:-select a chart style for a change and

click OK. The selected chart will be constructedon the basis of your selected range.


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7) What steps do we follow to move a chartfrom one location to another?

A)

Step-1:-your chart can be moved to a new

location. For this click on Location.

A Move Chart dialog box appears.

Here you can choose whether the chart is placed

on a new worksheet or on any of the existing

worksheets.


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Class: VII HTML BASICS Chapter: 5


1) What do you understand by a website? What

are its three main sections?A)

A collection of web pages containing text, graphics,sound and video content is called website.

The home page

The main section

Subsection

2) What is a Home Page?

A) Home page is the first page of the website. Thispage usually tells the visitors what the site is about.

3) Define HTML?

A) Html stands for Hyper Text Markup Language

which is used for organaising, formatting and linkingpages of text, graphics and other information.

4) Name the two types of HTML editors giving

an example of each?A)

WYSIWYGText Editor


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5) Write the difference between containerelements and empty elements?A)

Container elements:-

The HTML elements that include both ON and OFF

tags called the container elements. These tags wraparound the text in the document.(ON tag) types of computer (OFF tag)Empty elements:-

The HTML elements that need only an ON tag and donot OFF tag are called the empty elements.

For example,
tag does not required closingtag. The
tag is used for line break.

6) List any four rules for writing an HTML page?

A)1) Element names are not case sensitive. It means

they can be given in upper or lower cases.2) Similarly, either case can be used to specify

attribute names.3) Attribute values can be sensitive.4) Element names cannot contain spaces.

7) Describe the basic structure of an HTMLpage?A)


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Class: VII BASIC HTML COMMANDS

Chapter: 6


1) Name any three attributes used with theBODY tag.

A) BGCOLOR (value: Color Name)

BGCOLOR (value: Hexadecimal code)TEXT (value: Color name)

2) What is the use of line break
and tags?A) The
tag is used to insert a line break in a

document. is used to draw a horizontal line across the

page.3) Write the HTML code to set the background

colour pink and text color green?A)

4) How would you insert a comment in an HTMLdocument? notepad is very useful software.

5) Describe the Bold, Underline and Italic tagsby giving at least one exam

A)The bold tag is used to make the text in bold face. SusanaThe italic tag is used to make the text italicized.


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SusanaThe underlined tag is used to make text underlined. srujana


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Class: VII INTERNET Chapter: 9

QUESTIONS AND ANSWERS

1) What does the term surfing mean in contextof the internet?A)

Navigating for information on the internet or simply

exploring the internet is known as surfing.2) What are search engines? What are their

uses?A) A search engine is a software that helps us in websurfing. It looks for WebPages and online sites forspecified keywords and displays a list of websites.3) Write any two examples of search engines.A)

GoogleYahoo

4) Write about any three means ofcommunication on the Internet?

A) Chatting is a very popular form ofcommunication. It is a conversation between two or

more people. It is different from sending andreceiving email.Newsgroups are discussion groups on the net. Thetopics used for discussion can range from

recreational activities to scientific research.Article there are thousands of forums for a number

of subjects. Queries on the topics to discuss can besent in by the members of the forum through email.


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5) Write some examples of acronyms andemotions.

A) AFAIK As Far As I KnowBRB Be Right BackLOL Laughing Out Loud

A face to show that you are happy.

A sad face to show that you are not happy.

:-( It shows that you are very sad and crying.

6) How are newsgroups different from emails?

A) The difference is that instead of sending yourmessages to someones mail box, the message is

posted on a bulletin board where anyone can read itand respond.7) How does a video conference take place?

A) A camera records the video of the sender. This

video is changed into compressed digital signals.These signals are transmitted to the other

computers. In the other computer, the signals areconverted back into the video and are displayed onthe computer screen.


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Class: VII COMPUTER VIRUS CH: 10

Question and Answers

1) What are viruses? Give some examples?

A) This is the programmed that can spoil your toilfor years.Trojan

NimadaStoned.2) To what extent can a virus harm us?A) It can infect executable program files such asword processors, spreadsheets, windows.It can infect disks by attaching itself to special

programs in the hard disk called boot record.It can infect a file before it is attached to an email

message or transferred to a disk.

3) To what extent can a virus not harm us?A) It cannot harm files on write-protected disk such

as a CD-ROM.It cannot infect computer hardware such as a

monitor or a keyboard. It infects only softwares.

4) How do viruses spread?A) People who write virus programs create harmful

programs and store them in floppies or CD-ROMs.When these floppies or CD ROMs are circulated in the

market with virus programs, viruses find place inother computers in which they are used.


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5) Name any four types of viruses?A) Program viruses.Boot virus

Macro virus

6) What do you understand by an antivirusSoftware?

A) The antivirus software refers to the applicationpackage that is designed to detect and remove

viruses from a computer system.

Documents

class 7th 1st Q&A