Multimedia

Multimedia is a technology which stores data as text, photo, animation, music, video, etc. and gives the method to collect and modify the data as required. This note provides an information about introduction to multimedia and its components.

Summary

Multimedia is a technology which stores data as text, photo, animation, music, video, etc. and gives the method to collect and modify the data as required. This note provides an information about introduction to multimedia and its components.

Things to Remember

  • Multimedia is a technology which stores data as text, photo, animation, music, video, etc. and gives the method to collect and modify the data as required.
  • Multimedia technology allows storing data and information for further reference.
  •  Most of the information can be presented with the help of text. 
  • A digital representation of non-text information such as drawing, photographs etc are known as graphics.
  • The animation medium presents the sequence of still images of artwork at a rapid speed that looks like the image is moving.

MCQs

No MCQs found.

Subjective Questions

Q1:

Find the next term, nth term  and  the 12th term of the following sequences.

5,2,-1,-4,....


Type: Short Difficulty: Easy

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Answer: <p>Here,</p>
<p>Let the given sequences be a<sub>1</sub>, a<sub>2</sub>, a<sub>3</sub>, a<sub>4</sub>............</p>
<p>Now, a<sub>1</sub>=5</p>
<p>a<sub>2</sub>= 2=5-3</p>
<p>a<sub>3</sub>= -1=2-3</p>
<p>a<sub>4</sub>=-4=-1-3</p>
<p>Similarly the next term is a<sub>5</sub>= -4 -3 = -7.</p>
<p>Again from the given pattern</p>
<p>a<sub>1</sub>=5= 8-3 &times; 1</p>
<p>a<sub>2</sub>=2 =8-3&times; 2</p>
<p>a<sub>3</sub>= -1=8 - 3&times; 3</p>
<p>a<sub>4</sub> = -4 =8-3&times; 4</p>
<p>&sdot; &sdot; &sdot;</p>
<p>&sdot; &sdot; &sdot;</p>
<p>&sdot; &sdot; &sdot;</p>
<p>a<sub>n</sub>=8 - 3&times;n</p>
<p>&there4; n<sup>th</sup> term (a<sub>n</sub>) = 8 - 3n.</p>
<p>Now 12<sup>th</sup> term (a<sub>12</sub>) = 8 - 3&times; 12 = 8 - 36 = -28.Ans</p>
<p>&nbsp;</p>

Q2:

Find the next term, nth term  and  the 12th term of the following sequences.

 

2,4,6,8.........

 


Type: Short Difficulty: Easy

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Answer: <p>Here,</p> <p>Let the given sequences be a<sub>1</sub>, a<sub>2</sub>, a<sub>3</sub>, a<sub>4</sub>............</p> <p> Now, a<sub>1</sub> = 2</p> <p> a<sub>2</sub> = 4 =2 + 2</p> <p> a<sub>3</sub> = 6 = 4 + 2</p> <p> a<sub>4</sub> = 8 = 6 + 2</p> <p>Similarly the next term is a<sub>s</sub> = 8 + 2 =10.</p> <p>Again from the given pattern.</p> <p> a<sub>1</sub>=2=2 &times; 1</p> <p> a<sub>2</sub> = 4 = 2&times; 2</p> <p> a<sub>3</sub>= 6 = 2&times; 3</p> <p> a<sub>4</sub> = 8 = 2&times; 4</p> <p> &sdot; &sdot; &sdot;</p> <p> &sdot; &sdot; &sdot;</p> <p> &sdot; &sdot; &sdot;</p> <p> a<sub>n</sub>=2n</p> <p>&there4; n<sup>th</sup> term a<sub>n</sub>= 2n</p> <p>Again, 12<sup>th</sup> term a<sub>12</sub> = 2 &times; 12</p> <p> = 24 Ans.</p> <p> </p>

Q3:

Find first 6 terms of the sequences whose nth terms are:

an=4n-3


Type: Short Difficulty: Easy

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Answer: <p>soln<strong>:</strong> let the sequences be a<sub>1</sub>,a<sub>2</sub>,a<sub>3</sub>,a<sub>4</sub>,a<sub>6</sub>..........</p>
<p>n<sup>th </sup>term (a<sub>n</sub>)=4n-3</p>
<p>&there4; a<sub>1</sub>=4&times;1-3=4-3=1</p>
<p>a<sub>2</sub>=4&times;2-3=8-3=5</p>
<p>a<sub>3=</sub>4&times;3-3=12-3=8</p>
<p>a<sub>4</sub>=4&times;4-3=16-3=13</p>
<p>a<sub>5=</sub>4&times;5-3=20-3=17</p>
<p>a<sub>6</sub>=4&times;6-3=24-3=21</p>
<p>&there4; The first 6 terms of the sequences are : 1,5,9,13,17 and 21 Ans.</p>

Q4:

If an=n2+2, find the first six terms.


Type: Short Difficulty: Easy

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Answer: <p>soln<strong>:</strong> Let the sequences be a<sub>1</sub>,a<sub>2,</sub>a<sub>3,...........</sub></p>
<p>n<sup>th </sup>term (a<sub>n</sub>) = n<sup>2</sup>+2</p>
<p>&there4; a<sub>1</sub>=1<sup>2</sup>+2=1+2=3</p>
<p>a<sub>2</sub>=2<sup>2</sup>+2=4+2=6</p>
<p>a<sub>3</sub>=3<sup>2</sup>+2=9+2=11</p>
<p>a<sub>4</sub>=4<sup>2</sup>+2=16+2=18</p>
<p>a<sub>5</sub>=5<sup>2</sup>+2=25+2=27</p>
<p>a<sub>6</sub>=6<sup>2</sup>+2=36+2=38</p>
<p>&there4; The first 6 terms of the sequences are:3,6,11,18,27 and 38 Ans.</p>

Q5:

If an=(-2)n+1 find first six terms.


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here</p>
<p>let the sequence be a<sub>1</sub>,a<sub>2</sub>,a<sub>3</sub>........</p>
<p>n<sup>th</sup>term (a<sub>n</sub>)=(-2)<sup>n+1</sup></p>
<p>a<sub>1</sub> =(-2)<sup>1+1</sup> =(-2)<sup>2 </sup>=4</p>
<p>a<sub>2</sub>=(-2)<sup>2+1</sup>=(-2)<sup>3</sup>=-8</p>
<p>a<sub>3</sub>=(-2)<sup>3</sup><sup>+1</sup>=(-2)<sup>4</sup>=16</p>
<p>a<sub>4</sub>=(-2)<sup>4</sup><sup>+1</sup>=(-2)<sup>5</sup>=-32</p>
<p>a<sub>5</sub>=(-2)5<sup>+1</sup>=(-2)<sup>6</sup>=64</p>
<p>a<sub>6</sub>=(-2)<sup>6</sup><sup>+1</sup>=(-2)<sup>7</sup>=-128</p>
<p>&there4; The first 6<sup>th</sup> term of the sequences are;</p>
<p>4,-8,16,-32,64 and -128 Ans.</p>

Q6:

Find the sum of  the first five(S5) of the sequences whose nth terms are:

an=2n


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here given sequences,</p>
<p>a<sub>n</sub>=2n</p>
<p>5 terms of the sequences by putting n =1,2,3,4, and 5 we get,</p>
<p>a<sub>1</sub>=2&times;1=2, a<sub>2</sub>=2 &times;2 =4, a<sub>3</sub>=2&times;3=6,</p>
<p>a<sub>4</sub> = 2 &times; 4 =8 and a<sub>5</sub> =2&times;5=10</p>
<p>Sum of the 5 terms.</p>
<p>S<sub>5</sub>=a<sub>1</sub>+a<sub>2</sub>+a<sub>3+</sub>a<sub>4+</sub>a<sub>5</sub></p>
<p>=2 + 4 + 6 + 8 + 10</p>
<p>=30 Ans.</p>

Q7:

Find the sum of  the first five(S5) of the sequences whose nth terms are:

 

an=(-1)n 2n


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here, given</p>
<p>n<sup>th</sup> term of the sequences a<sub>n</sub>=(-1)<sup>n</sup> 2<sup>n</sup></p>
<p>Putting n=1,2,3,4 and5 we get,</p>
<p>a<sub>1</sub>=(-1)<sup>1</sup>.2<sup>1</sup>=-2</p>
<p>a<sub>2</sub>=(-1)<sup>2</sup>.2<sup>2</sup>=4</p>
<p>a<sub>3</sub>=(-1)<sup>3</sup>.2<sup>3</sup>=-8</p>
<p>a<sub>4</sub>=(-1)<sup>4</sup>.2<sup>4</sup>=16</p>
<p>a<sub>5</sub>=(-1)<sup>5</sup>.2<sup>5</sup>=-32</p>
<p>Sum of the 5 terms</p>
<p>S<sub>5</sub>= a<sub>1</sub>+a<sub>2</sub>+a<sub>3</sub>+a<sub>4</sub>+a<sub>5</sub></p>
<p>= -2+4+-8+16-32</p>
<p>= -42+20</p>
<p>=-22. Ans.</p>

Q8:

Find the sum of  the first five(S5) of the sequences whose nth terms are:

 an=-(-1)n+1 2n


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here, given</p> <p>n<sup>th</sup> term of the sequences a<sub>n</sub>=(-1)<sup>n+1</sup> 2<sup>n</sup></p> <p>Putting n=1,2,3,4 and5 we get,</p> <p>a<sub>1</sub>=(-1)<sup>1+1</sup>.2<sup>1</sup>=(-1)<sup>2</sup>.2=2</p> <p>a<sub>2</sub>=(-1)<sup>2+1</sup>.2<sup>2</sup>=(-1)<sup>3</sup> 4=-4</p> <p>a<sub>3</sub>=(-1)<sup>3+1</sup>.2<sup>3</sup>=(-1)<sup>4</sup>.8=8</p> <p>a<sub>4</sub>=(-1)<sup>4+1</sup>.2<sup>4</sup>=(-1)<sup>5</sup>.16=-16</p> <p>a<sub>5</sub>=(-1)<sup>5+1</sup>.2<sup>5</sup>=(-1)<sup>6</sup>.32=32</p> <p>Sum of the 5 terms</p> <p>S<sub>5</sub>= a<sub>1</sub>+a<sub>2</sub>+a<sub>3</sub>+a<sub>4</sub>+a<sub>5</sub></p> <p>= 2-4+-8-16+32</p> <p>= 42-20</p> <p>=22. Ans.</p>

Q9:

Find first 6 terms of the sequences whose nth terms are:

an=2n-1

 


Type: Short Difficulty: Easy

Show/Hide Answer
Answer: <p>Here,</p>
<p>Let the sequences be a<sub>1,</sub>a<sub>2</sub>,a<sub>3...........</sub></p>
<p>n<sup>th</sup> term (a<sub>n</sub>) =2n-1</p>
<p>&there4; a<sub>1</sub> = 2 &times; 1 -1 = 2 - 1= 1</p>
<p>a<sub>1</sub> = 2 &times; 2 -1 = 4 - 1= 3</p>
<p>a<sub>2</sub> = 2 &times; 3 -1 = 6 - 1= 5</p>
<p>a<sub>3</sub> = 2 &times; 4 -1 = 8 - 1= 7</p>
<p>a<sub>4</sub> = 2 &times; 5 -1 = 10 - 1= 9</p>
<p>a<sub>5</sub> = 2 &times; 6 -1 = 12 - 1= 11</p>
<p>&there4;The first 6 terms of the sequences are:1,3,5,7,9 and 11. Ans.</p>

Videos

Sequences - definition and nth term : ExamSolutions Maths Revision
Multimedia

Multimedia

Multimedia is a technology which stores data as text, photo, animation, music, video, etc. and gives the method to collect and modify the data as required.

Multimedia System: It is a system which has capability to integrate two or more types of media such as text, graphics, audio, video and animation.

Multimedia Technology: Multimedia technology allows storing data and information for further reference. CD-ROM is a cheap, durable and portable storage media used to store data and information in the multimedia technology.

Advantages of multimedia

  • It can be used to help the student and teacher to teach as well as to learn the given topics easily.
  • It can be used to spread knowledge all over the world at a low cost.
  • It can be used for any subjects and for anyone.
  • Multimedia system is generally very interactive. So, it is interesting to use.

Disadvantages of Multimedia

  • It is expensive to produce the multimedia system.
  • It is expensive to set up multimedia contents.
  • It needs well-trained manpower to create and use it.

Components of Multimedia

The following are the different components used in multimedia system:

  • Text: It is the primary component of multimedia. Most of the information can be presented with the help of text. We can be emphasized the text by using different fonts, colors, styles etc.
  • Graphics: A digital representation of non-text information such as drawing, photographs etc are known as graphics. The graphic medium can be used with text medium.
  • Audio: Audio is one of the important components of multimedia. It is music, speech or any other sound. It is normally combined with animation medium.
  • Video: The effective medium for presenting information is video. It presents the moving images. It displayed the sequence of slightly varied pictures at the speed of 15-30 frames per second.
  • Animation: The animation medium presents the sequence of still images of artwork at a rapid speed that looks like the image is moving.

Lesson

Multimedia and its Application

Subject

Computer

Grade

Grade 8

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