Difference between revisions of "Digital-Divide/D0/Getting-to-know-computers/English-timed"

From Script | Spoken-Tutorial
Jump to: navigation, search
 
(13 intermediate revisions by 5 users not shown)
Line 1: Line 1:
 
{| border=1
 
{| border=1
−
| '''Visual Cue'''
+
| '''Time'''
 
| '''Narration'''
 
| '''Narration'''
  
 
|-
 
|-
 
|  00:01
 
|  00:01
−
| Welcome to the Spoken Tutorial on '''Getting to know Computers'''
+
| Welcome to the '''Spoken Tutorial''' on '''Getting to know Computers'''.
  
 
|-
 
|-
 
|  00:06
 
|  00:06
−
| In this tutorial we will learn about  
+
| In this tutorial, we will learn about  
  
 
|-
 
|-
Line 18: Line 18:
 
| 00:11
 
| 00:11
 
| We will also learn to connect the various components.  
 
| We will also learn to connect the various components.  
−
 
  
 
|-
 
|-
 
| 00:15
 
| 00:15
−
| Generally, there are 2 types of '''computers - '''
+
| Generally, there are 2 types of computers -  
  
 
|-
 
|-
 
|00:18
 
|00:18
−
| ''' Desktop'''  or '''Personal Computer''' and '''Laptop'''
+
| ''' Desktop'''  or '''Personal Computer''' and '''Laptop'''.
−
 
+
  
 
|-
 
|-
Line 35: Line 33:
 
|-
 
|-
 
|  00:31
 
|  00:31
−
| Functions of a computer.
+
| Functions of a computer-
  
 
|-
 
|-
−
|  00.33
+
|  00:33
−
| A '''computer''' performs five major functions irrespective of its size -
+
| A '''computer''' performs five major functions irrespective of its size: 
−
 
+
  
 
|-
 
|-
−
|  00.40
+
|  00:40
−
| it accepts '''data''' or ''' instructions''' by way of '''input '''
+
| It accepts '''data''' or ''' instructions''' by way of '''input '''
  
 
|-
 
|-
−
|  00.45
+
|  00:45
−
| it processes '''data''' as required by the user  
+
| It processes '''data''' as required by the user  
  
 
|-
 
|-
−
| 00.50
+
| 00:50
−
| it stores '''data'''  
+
| It stores '''data'''  
  
 
|-
 
|-
−
| 00.52
+
| 00:52
−
| it gives results in the form of '''output '''
+
| It gives results in the form of '''output '''
  
 
|-
 
|-
−
|  00.56
+
|  00:56
−
| it controls all '''operations''' inside the '''computer '''
+
| It controls all operations inside the computer.
  
 
|-
 
|-
 
|  01:01
 
|  01:01
−
| Basic organisation of a '''computer''' is as shown in this block diagram.  
+
| Basic organization of a computer is as shown in this block diagram.  
  
 
|-
 
|-
 
|  01:08
 
|  01:08
−
| '''Input unit '''
+
| '''Input unit ''', '''Central Processing unit ''',
−
 
+
−
|-
+
−
|  01:09
+
−
| '''Central Processing unit '''
+
  
 
|-
 
|-
 
|  01:11
 
|  01:11
−
| '''' Output unit '''
+
| '''' Output unit '''.
  
 
|-
 
|-
 
|01:14
 
|01:14
−
|The ''' Input unit''' helps to  
+
|The '''Input unit''' helps to  
  
 
|-
 
|-
−
|01.16
+
|01:16
−
|enter the '''data''' and '''programs''' into a '''computer''' system in an organised manner  
+
|enter the '''data''' and '''programs''' into a computer system in an organized manner.
−
 
+
  
 
|-
 
|-
−
|  01.23
+
|  01:23
−
| ''' Keyboard, mouse, camera''' and '''scanner''' are some of the '''input devices.'''
+
| ''' Keyboard, mouse, camera''' and '''scanner''' are some of the '''input''' devices.
  
 
|-
 
|-
−
| 01.31
+
| 01:31
 
| The ''' Central Processing unit '''
 
| The ''' Central Processing unit '''
  
 
|-
 
|-
 
| 01:33
 
| 01:33
−
| performs '''operations''' like '''arithmetic''' and ''' logical''' operations and  
+
| performs operations like arithmetic and ''' logical''' operations and  
  
 
|-
 
|-
−
| 01.38
+
| 01:38
−
| stores '''data''' and '''instructions '''
+
| stores '''data''' and '''instructions. '''
 
|-
 
|-
−
| 01.41
+
| 01:41
 
| Typically, the ''' Central Processing unit''' or '''CPU''' looks like this.   
 
| Typically, the ''' Central Processing unit''' or '''CPU''' looks like this.   
  
 
|-
 
|-
−
| 01.48
+
| 01:48
 
| It has many ''' ports''' in the front and at the back of the '''unit. '''
 
| It has many ''' ports''' in the front and at the back of the '''unit. '''
 
   
 
   
−
 
 
|-
 
|-
−
|01.53
+
|01:53
 
|We will learn about them in a little while.  
 
|We will learn about them in a little while.  
−
 
  
 
|-
 
|-
−
| 01.57
+
| 01:57
 
| It takes '''data''' and '''instructions''', processes them and gives the '''output''' or results.  
 
| It takes '''data''' and '''instructions''', processes them and gives the '''output''' or results.  
  
Line 123: Line 113:
 
|  02:05
 
|  02:05
 
| The task of performing '''operations''' is called '''processing. '''
 
| The task of performing '''operations''' is called '''processing. '''
−
 
  
 
|-
 
|-
 
|  02:11
 
|  02:11
 
| The '''output''' is then stored along with the '''data''' and ''' instructions''' in the '''storage unit. '''
 
| The '''output''' is then stored along with the '''data''' and ''' instructions''' in the '''storage unit. '''
−
 
  
 
|-
 
|-
Line 135: Line 123:
  
 
|-
 
|-
−
|  02.26
+
|  02:26
−
| '''Monitor''' and '''printer''' are some of the '''output devices. '''
+
| '''Monitor''' and '''printer''' are some of the '''output''' devices.
−
 
+
  
 
|-
 
|-
−
|  02.33
+
|  02:33
−
| Generally, a '''desktop computer''' has 4 main components  
+
| Generally, a '''desktop computer''' has 4 main components:
  
 
|-
 
|-
−
| 02.38
+
| 02:38
−
|'''Monitor'''
+
|'''Monitor''' '''CPU'''
  
 
|-
 
|-
−
| 02.39
+
| 02:40
−
| '''CPU'''
+
| '''Keyboard''' and '''Mouse '''.
  
 
|-
 
|-
−
| 02.40
+
|  02:43
−
| ''' Keyboard'''
+
−
 
+
−
|-
+
−
| 02.41
+
−
|and  '''Mouse '''
+
−
 
+
−
|-
+
−
|  02.43
+
 
| A ''' camera, printer''' or '''scanner''' can also be connected to a computer.  
 
| A ''' camera, printer''' or '''scanner''' can also be connected to a computer.  
  
 
|-
 
|-
−
|  02.50
+
|  02:50
−
| This is a '''monitor''' or the '''computer screen''', as we call it.  
+
| This is a '''monitor''' or the '''computer screen''' as we call it.  
  
 
|-
 
|-
Line 171: Line 150:
 
|It looks like a '''TV screen.'''  
 
|It looks like a '''TV screen.'''  
 
|-
 
|-
−
|  02.57
+
|  02:57
 
|It is the '''visual display unit''' of a '''computer. '''
 
|It is the '''visual display unit''' of a '''computer. '''
  
 
|-
 
|-
−
| 03.02
+
| 03:02
−
| It displays the '''computer's user interface. '''
+
| It displays the computer's '''user interface. '''
  
 
|-
 
|-
−
|  03.05
+
|  03:05
−
|*One can open various '''programs''' and interact with the '''computer''', using the keyboard and mouse.  
+
| One can open various '''programs''' and interact with the '''computer''' using the '''keyboard''' and '''mouse'''.  
  
 
|-
 
|-
−
|  03.13
+
|  03:13
−
|The ''' keyboard''' is designed to enter text, characters and other commands into a '''computer.'''
+
|The ''' keyboard''' is designed to enter text, characters and other '''commands''' into a '''computer.'''
  
 
|-
 
|-
−
|  03.21
+
|  03:21
 
|This is the '''computer mouse.'''  
 
|This is the '''computer mouse.'''  
 
|-
 
|-
−
| 03.24
+
| 03:24
 
| Typically, it has 2 clickable buttons and a '''scroll''' button in between.  
 
| Typically, it has 2 clickable buttons and a '''scroll''' button in between.  
−
 
  
 
|-
 
|-
−
|  03.31
+
|  03:31
 
| Pressing the ''' left mouse button''', activates most actions.  
 
| Pressing the ''' left mouse button''', activates most actions.  
  
 
|-
 
|-
−
|  03.35
+
|  03:35
−
| Pressing the ''' right mouse button''', activates more non-standard actions like shortcuts.  
+
| Pressing the ''' right mouse button''', activates more non-standard actions like '''shortcuts'''.  
  
 
|-
 
|-
−
| 03.43
+
| 03:43
−
|The '''mouse wheel''' is used to scroll up and down, by rolling the '''scroll button. '''
+
|The '''mouse wheel''' is used to scroll up and down by rolling the '''scroll button. '''
  
 
|-
 
|-
−
|  03.49
+
|  03:49
−
| The ''' computer mouse''' is an alternative way to interact with the '''computer''', besides the ''' keyboard. '''
+
| The ''' computer mouse''' is an alternative way to interact with the '''computer''' besides the ''' keyboard. '''
  
 
|-
 
|-
−
| 03.57
+
| 03:57
 
| Now, let us see the various parts of the '''CPU.'''
 
| Now, let us see the various parts of the '''CPU.'''
  
Line 223: Line 201:
  
 
|-
 
|-
−
| 04.14
+
| 04:14
−
| There is a '''reset''' button, too, which helps us to restart the '''computer''', if required.  
+
| There is a '''reset''' button too which helps us to '''restart''' the '''computer''', if required.  
  
 
|-
 
|-
−
|  04.21
+
|  04:21
 
| Also, on the front side, you will notice 2 or more ''' USB ports''' and a ''' DVD/CD-ROM reader-writer. '''
 
| Also, on the front side, you will notice 2 or more ''' USB ports''' and a ''' DVD/CD-ROM reader-writer. '''
  
 
|-
 
|-
−
|  04.30
+
|  04:30
 
|The ''' USB ports''' are used to connect ''' pen-drives''' to the ''' computer. '''
 
|The ''' USB ports''' are used to connect ''' pen-drives''' to the ''' computer. '''
  
 
|-
 
|-
−
|  04.35
+
|  04:35
 
| And the ''' DVD/CD-ROM reader-writer''' is used to read or write a ''' CD''' or a '''DVD.'''
 
| And the ''' DVD/CD-ROM reader-writer''' is used to read or write a ''' CD''' or a '''DVD.'''
  
 
|-
 
|-
−
|  04.43
+
|  04:43
 
| Now let's look at the back of the ''' computer. '''
 
| Now let's look at the back of the ''' computer. '''
  
 
|-
 
|-
−
|  04.48
+
|  04:48
 
|The '''ports''' at the back, are used for connecting the '''CPU''' to the other devices of the '''computer. '''
 
|The '''ports''' at the back, are used for connecting the '''CPU''' to the other devices of the '''computer. '''
  
 
|-
 
|-
−
|  04.55
+
|  04:55
−
|This is done using '''cables.'''
+
|This is done using the '''cables.'''
  
 
|-
 
|-
−
|  04.58
+
|  04:58
−
|There are many '''components''' inside the '''CPU. '''
+
|There are many components inside the 'CPU'.
  
 
|-
 
|-
 
|  05:02
 
|  05:02
−
|When the ''' computer''' is on, all these components work and generate heat.  
+
|When the computer is ON, all these components work and generate heat.  
  
 
|-
 
|-
 
|  05:08
 
|  05:08
−
|Fans at the back provide the air flow required to cool the components.  
+
|'''Fans''' at the back, provide the air flow required to cool the components.  
  
 
|-
 
|-
−
|  05.14
+
|  05:14
−
|Otherwise, overheating can cause damage to the '''CPU,''' often leading to '''data''' loss.  
+
|Otherwise, overheating can cause damage to the 'CPU', often leading to data loss.  
−
 
+
  
 
|-
 
|-
Line 274: Line 251:
 
|  05:23
 
|  05:23
 
|It keeps the temperature of the '''CPU''' normal and prevents overheating.  
 
|It keeps the temperature of the '''CPU''' normal and prevents overheating.  
−
 
  
 
|-
 
|-
Line 285: Line 261:
  
 
|-
 
|-
−
|  05.42
+
|  05:42
 
|Place all the components on the table, as shown.  
 
|Place all the components on the table, as shown.  
  
 
|-
 
|-
 
|  05:46
 
|  05:46
−
|Place all the cables on the table, as shown.  
+
|Place all the '''cables''' on the table, as shown.  
  
 
|-
 
|-
Line 298: Line 274:
 
|-
 
|-
 
|  05:55
 
|  05:55
−
|Connect the '''power cable''' to the ''' monitor''', as shown.  
+
|Connect the '''power cable''' to the ''' monitor''' as shown.  
  
 
|-
 
|-
−
|  06.00
+
|  06:00
 
|Now, connect the other end to a '''power supply socket'''.  
 
|Now, connect the other end to a '''power supply socket'''.  
  
 
|-
 
|-
−
|  06.04
+
|  06:04
 
|This is the '''power cable''' of the CPU.  
 
|This is the '''power cable''' of the CPU.  
  
 
|-
 
|-
−
|  06.08
+
|  06:08
−
|Connect it to the '''CPU,''' as shown.  
+
|Connect it to the '''CPU''' as shown.  
  
 
|-
 
|-
−
|  06.11
+
|  06:11
−
|Then, connect it to a '''power supply socket'''
+
|Then, connect it to a '''power supply socket'''.
  
 
|-
 
|-
−
|  06.14
+
|  06:14
−
|Next, connect the ''' keyboard cable''' to the '''CPU,''' as shown.
+
|Next, connect the ''' keyboard cable''' to the '''CPU''' as shown.
  
 
|-
 
|-
−
|  06.19
+
|  06:19
 
|The '''port ''' for the ''' keyboard''' is usually “purple” in colour.  
 
|The '''port ''' for the ''' keyboard''' is usually “purple” in colour.  
  
 
|-
 
|-
−
|  06.23
+
|  06:23
−
|You can connect the mouse to the port which is “green” in colour.  
+
|You can connect the '''mouse''' to the '''port''' which is “green” in colour.  
  
 
|-
 
|-
−
|  06.28
+
|  06:28
 
|Alternately, you can connect the ''' USB keyboard''' and '''mouse''' to any of the '''USB ports. '''
 
|Alternately, you can connect the ''' USB keyboard''' and '''mouse''' to any of the '''USB ports. '''
  
 
|-
 
|-
−
|  06.35
+
|  06:35
 
|The remaining ''' USB ports''' can be used for connecting ''' pen drive, hard disk''' etc.  
 
|The remaining ''' USB ports''' can be used for connecting ''' pen drive, hard disk''' etc.  
 
|-
 
|-
−
|  06.42
+
|  06:42
−
|This is a ''' lan cable.'''
+
|This is a ''' LAN cable'''
  
 
|-
 
|-
−
|  06.44
+
|  06:44
−
|And this is a '''LAN port.'''
+
|and this is a '''LAN port.'''
  
 
|-
 
|-
−
|  06.46
+
|  06:46
 
|It is a ''' wired connection''' that allows a '''computer''' to connect to a '''network'''.  
 
|It is a ''' wired connection''' that allows a '''computer''' to connect to a '''network'''.  
  
 
|-
 
|-
−
|  06.52
+
|  06:52
−
|The other end of the ''' lan cable''' is connected to a  ''' modem or a wi-fi router. '''
+
|The other end of the ''' LAN cable''' is connected to a  ''' modem or a wi-fi router. '''
  
 
|-
 
|-
−
|  06.58
+
|  06:58
 
|You will learn about configuring ''' wi-fi connections''' in another tutorial.  
 
|You will learn about configuring ''' wi-fi connections''' in another tutorial.  
  
 
|-
 
|-
−
|  07.03
+
|  07:03
−
|The ''' led light''' will blink, when the ''' lan port''' is active and receiving activity.  
+
|The ''' LED light''' will blink when the ''' LAN port''' is active and receiving activity.  
  
 
|-
 
|-
−
|  07.10
+
|  07:10
 
|You may notice that there are other '''serial ports''' on the '''CPU. '''
 
|You may notice that there are other '''serial ports''' on the '''CPU. '''
  
 
|-
 
|-
−
|  07.15
+
|  07:15
 
|These are used for connecting ''' PDAs, modem''' or other '''serial devices.'''
 
|These are used for connecting ''' PDAs, modem''' or other '''serial devices.'''
  
 
|-
 
|-
−
|  07.21
+
|  07:21
 
|You will also notice that there are some '''parallel ports''' on the '''CPU.'''  
 
|You will also notice that there are some '''parallel ports''' on the '''CPU.'''  
  
 
|-
 
|-
−
|  07.25
+
|  07:25
 
|These are used for connecting devices like ''' printer, scanner''' etc.
 
|These are used for connecting devices like ''' printer, scanner''' etc.
  
 
|-
 
|-
−
|  07.31
+
|  07:31
−
|Now, let's look at the ''' audio jacks.'''  
+
|Now, let's look at the '''audio jacks.'''  
  
 
|-
 
|-
−
|  07.34
+
|  07:34
 
|The '''port''' in “pink” is used for connecting a '''microphone.'''
 
|The '''port''' in “pink” is used for connecting a '''microphone.'''
  
 
|-
 
|-
−
|  07.38
+
|  07:38
 
|The '''port''' in “blue” is for connecting a '''line in,''' for eg- from a radio or tape player.  
 
|The '''port''' in “blue” is for connecting a '''line in,''' for eg- from a radio or tape player.  
  
 
|-
 
|-
−
|  07.45
+
|  07:45
 
|The ''' port''' in “green” is for connecting '''headphone/speaker''' or '''line out.'''
 
|The ''' port''' in “green” is for connecting '''headphone/speaker''' or '''line out.'''
  
 
|-
 
|-
−
|  07.51
+
|  07:51
 
|Now that we have connected all our devices, let's turn on the '''computer. '''
 
|Now that we have connected all our devices, let's turn on the '''computer. '''
  
 
|-
 
|-
−
|  07.57
+
|  07:57
 
|First of all, switch on the '''power supply''' buttons of the '''monitor''' and the '''CPU.'''
 
|First of all, switch on the '''power supply''' buttons of the '''monitor''' and the '''CPU.'''
  
 
|-
 
|-
−
|  08.03
+
|  08:03
 
|Now, press the ''' POWER ON''' button on the '''monitor.'''  
 
|Now, press the ''' POWER ON''' button on the '''monitor.'''  
  
 
|-
 
|-
−
|  08.07
+
|  08:07
 
|And then press the ''' POWER ON''' switch, on the front of the '''CPU.'''
 
|And then press the ''' POWER ON''' switch, on the front of the '''CPU.'''
−
 
  
 
|-
 
|-
−
|  08.12
+
|  08:12
−
|Usually, you will see a string of words on a black screen, when your '''computer''' first turns on.  
+
|Usually, you will see a '''string''' of words on a black screen when your '''computer''' first turns on.  
  
 
|-
 
|-
−
|  08.18
+
|  08:18
 
|This is the '''BIOS system''' displaying information about  
 
|This is the '''BIOS system''' displaying information about  
  
 
|-
 
|-
−
|  08.22
+
|  08:22
−
|the '''computer's central processing unit, '''
+
|the computer's '''central processing unit, '''
  
 
|-
 
|-
−
|  08.25
+
|  08:25
 
|information about how much memory the '''computer''' has,  
 
|information about how much memory the '''computer''' has,  
  
 
|-
 
|-
−
|  08.28
+
|  08:28
−
|and information about the hard disk drives and floppy disk drives.  
+
|and information about the '''hard disk drives''' and '''floppy disk drives'''.  
  
 
|-
 
|-
−
|  08.33
+
|  08:33
−
|'''BIOS''' is the software which gives the '''CPU''' its first instructions, when the '''computer''' is turned on.  
+
|'''BIOS''' is the software which gives the '''CPU''' its first instructions when the '''computer''' is turned on.  
  
 
|-
 
|-
−
|  08.41
+
|  08:41
 
|The whole process of loading the '''operating system''' is called '''booting''' the '''computer. '''
 
|The whole process of loading the '''operating system''' is called '''booting''' the '''computer. '''
  
 
|-
 
|-
−
|  08.48
+
|  08:48
−
|When all the necessary checks are done, you will see the '''operating system's interface. '''
+
|When all the necessary checks are done, you will see the operating system's '''interface. '''
  
 
|-
 
|-
−
|  08.54
+
|  08:54
 
|If you are an '''Ubuntu Linux''' user, you will see this screen.  
 
|If you are an '''Ubuntu Linux''' user, you will see this screen.  
  
 
|-
 
|-
−
|  08.58
+
|  08:58
−
|And If you are a '''Windows''' user, you will see this screen.  
+
|And if you are a '''Windows''' user, you will see this screen.  
  
 
|-
 
|-
−
|  09.02
+
|  09:02
 
|Now, let us briefly look at a '''laptop.'''
 
|Now, let us briefly look at a '''laptop.'''
  
 
|-
 
|-
−
|  09.06
+
|  09:06
 
|'''Laptops''' are portable and compact '''computers. '''
 
|'''Laptops''' are portable and compact '''computers. '''
  
 
|-
 
|-
−
|  09.09
+
|  09:09
−
|A ''' laptop''' is small and light enough to sit on a person's lap, while in use.  
+
|A '''laptop''' is small and light enough to sit on a person's lap while in use.  
  
 
|-
 
|-
−
|  09.16
+
|  09:16
 
|Hence, it is called a ''''laptop. '''
 
|Hence, it is called a ''''laptop. '''
−
 
  
 
|-
 
|-
−
|  09.18
+
|  09:18
−
|It has most of the same components as a ''' desktop computer''' including  
+
|It has most of the same components as a ''' desktop computer''' including-
  
 
|-
 
|-
−
|  09.23
+
|  09:23
−
|a '''display, '''
+
|a '''display, '''a '''keyboard, '''
  
 
|-
 
|-
−
|  09.24
+
|  09:25
−
|a '''keyboard, '''
+
|a ''' touchpad''' which is the pointing and navigating device,
  
 
|-
 
|-
−
|  09.25
+
|  09:29
−
|a ''' touchpad,''' which is the pointing and navigating device
+
−
 
+
−
|-
+
−
|  09.29
+
 
|a ''' CD/DVD reader-writer''' and  
 
|a ''' CD/DVD reader-writer''' and  
  
 
|-
 
|-
−
|  09.32
+
|  09:32
 
|'''mic'''  and ''' speakers''' built into a single unit.  
 
|'''mic'''  and ''' speakers''' built into a single unit.  
−
 
  
 
|-
 
|-
−
|  09.36
+
|  09:36
−
|It also has a ''' lan port'''  and ''' USB ports.'''
+
|It also has a '''lan port'''  and ''' USB ports.'''
  
 
|-
 
|-
−
|  09.40
+
|  09:40
−
|There is a ''' video port,''' using which one can connect a ''' projector''' to the '''laptop. '''
+
|There is a ''' video port''' using which one can connect a ''' projector''' to the '''laptop. '''
  
 
|-
 
|-
−
|  09.46
+
|  09:46
−
|The ''' audio jacks''' are easily identifiable, with respective ''' icons''' for ''' mic''' and '''headphones'''.  
+
|The '''audio jacks''' are easily identifiable with respective '''icons''' for '''mic''' and '''headphones'''.  
  
 
|-
 
|-
−
|  09.53
+
|  09:53
−
|This is the inbuilt ''' cooling fan''' in the '''laptop. '''
+
|This is the inbuilt '''cooling fan''' in the '''laptop.'''
  
 
|-
 
|-
−
|  09.57
+
|  09:57
−
|This helps to keep the ''' laptop''' from overheating.  
+
|This helps to keep the '''laptop''' from overheating.  
−
 
+
  
 
|-
 
|-
−
|  10.01
+
|  10:01
−
|A ''' laptop''' is powered by electricity via an ''' AC adapter''' and has a ''' rechargeable battery. '''
+
|A ''' laptop''' is powered by electricity via an ''' AC adapter''' and has a rechargeable battery.  
  
 
|-
 
|-
−
|  10.09
+
|  10:09
 
|Hence, it is portable and can be used away from a power source.  
 
|Hence, it is portable and can be used away from a power source.  
−
 
  
 
|-
 
|-
−
|  10.16
+
|  10:16
−
|Let us summarize. In this tutorial we have learnt  
+
|Let us summarize. In this tutorial, we have learnt:
  
 
|-
 
|-
−
|  10.20
+
|  10:20
 
|about the various components of a ''' desktop''' and ''' laptop '''
 
|about the various components of a ''' desktop''' and ''' laptop '''
  
 
|-
 
|-
−
|  10.23
+
|  10:23
−
|and how to connect the various components of a '''desktop '''
+
|and how to connect the various components of a '''desktop'''.
−
 
+
  
 
|-
 
|-
−
| 10.28
+
| 10:28
−
| Watch the video available at the following link
+
| Watch the video available at the following link.
  
 
|-
 
|-
−
|  10.31
+
|  10:31
−
|It summaries the Spoken Tutorial project
+
|It summarizes the Spoken Tutorial project.
  
 
|-
 
|-
−
|  10.34
+
|  10:34
−
|If you do not have a good bandwidth you can download and watch it
+
|If you do not have a good bandwidth, you can download and watch it.
  
 
|-
 
|-
−
|  10.37
+
|  10:37
−
| The Spoken Tutorial project team conducts workshops using spoken tutorials.
+
| The Spoken Tutorial project team: conducts workshops using spoken tutorials.
  
 
|-
 
|-
−
|  10.42
+
|  10:42
 
|Gives certificates for those who pass an online test.  
 
|Gives certificates for those who pass an online test.  
  
 
|-
 
|-
−
|  10.46
+
|  10:46
 
|For more details, please write to: contact@spoken-tutorial.org  
 
|For more details, please write to: contact@spoken-tutorial.org  
  
 
|-
 
|-
−
| 10.52
+
| 10:52
−
| Spoken Tutorial Project is a part of the Talk to a Teacher project.
+
| Spoken Tutorial Project is a part of the "Talk to a Teacher" project,
  
 
|-
 
|-
−
|  10.56
+
|  10:56
−
|Supported by the National Mission on Education through ICT, MHRD, Government of India.
+
|supported by the National Mission on Education through ICT, MHRD, Government of India.
  
 
|-
 
|-
−
|  11.01
+
|  11:01
−
|More information on this mission is available at the following link
+
|More information on this mission is available at the following link.
  
 
|-
 
|-
−
| 11.06
+
| 11:06
−
| The animation and 3D modeling for this tutorial is done by Arthi
+
| The '''animation''' and '''3D modeling''' for this tutorial is done by Arthi.
  
 
|-
 
|-
−
|  11.11
+
|  11:11
−
|This is Nancy Varkey from the spoken tutorial project IIT Bombay signing off.
+
|This is Nancy Varkey from the spoken tutorial project, IIT Bombay, signing off.
  
 
|-
 
|-
−
|  11.16
+
|  11:16
 
|Thanks for joining.
 
|Thanks for joining.
  
 
|}
 
|}

Latest revision as of 11:53, 28 March 2017

Time Narration
00:01 Welcome to the Spoken Tutorial on Getting to know Computers.
00:06 In this tutorial, we will learn about
00:09 the various components of a computer.
00:11 We will also learn to connect the various components.
00:15 Generally, there are 2 types of computers -
00:18 Desktop or Personal Computer and Laptop.
00:23 Now-a-days, tablet PCs or tabs for short, are also quite popular.
00:31 Functions of a computer-
00:33 A computer performs five major functions irrespective of its size:
00:40 It accepts data or instructions by way of input
00:45 It processes data as required by the user
00:50 It stores data
00:52 It gives results in the form of output
00:56 It controls all operations inside the computer.
01:01 Basic organization of a computer is as shown in this block diagram.
01:08 Input unit , Central Processing unit ,
01:11 ' Output unit .
01:14 The Input unit helps to
01:16 enter the data and programs into a computer system in an organized manner.
01:23 Keyboard, mouse, camera and scanner are some of the input devices.
01:31 The Central Processing unit
01:33 performs operations like arithmetic and logical operations and
01:38 stores data and instructions.
01:41 Typically, the Central Processing unit or CPU looks like this.
01:48 It has many ports in the front and at the back of the unit.
01:53 We will learn about them in a little while.
01:57 It takes data and instructions, processes them and gives the output or results.
02:05 The task of performing operations is called processing.
02:11 The output is then stored along with the data and instructions in the storage unit.
02:18 The unit that supports the process of producing results from the data, is the output unit.
02:26 Monitor and printer are some of the output devices.
02:33 Generally, a desktop computer has 4 main components:
02:38 Monitor CPU
02:40 Keyboard and Mouse .
02:43 A camera, printer or scanner can also be connected to a computer.
02:50 This is a monitor or the computer screen as we call it.
02:55 It looks like a TV screen.
02:57 It is the visual display unit of a computer.
03:02 It displays the computer's user interface.
03:05 One can open various programs and interact with the computer using the keyboard and mouse.
03:13 The keyboard is designed to enter text, characters and other commands into a computer.
03:21 This is the computer mouse.
03:24 Typically, it has 2 clickable buttons and a scroll button in between.
03:31 Pressing the left mouse button, activates most actions.
03:35 Pressing the right mouse button, activates more non-standard actions like shortcuts.
03:43 The mouse wheel is used to scroll up and down by rolling the scroll button.
03:49 The computer mouse is an alternative way to interact with the computer besides the keyboard.
03:57 Now, let us see the various parts of the CPU.
04:02 There is a prominent button on the front of the CPU which is the POWER ON switch.
04:08 To turn on the computer, one needs to press this switch.
04:14 There is a reset button too which helps us to restart the computer, if required.
04:21 Also, on the front side, you will notice 2 or more USB ports and a DVD/CD-ROM reader-writer.
04:30 The USB ports are used to connect pen-drives to the computer.
04:35 And the DVD/CD-ROM reader-writer is used to read or write a CD or a DVD.
04:43 Now let's look at the back of the computer.
04:48 The ports at the back, are used for connecting the CPU to the other devices of the computer.
04:55 This is done using the cables.
04:58 There are many components inside the 'CPU'.
05:02 When the computer is ON, all these components work and generate heat.
05:08 Fans at the back, provide the air flow required to cool the components.
05:14 Otherwise, overheating can cause damage to the 'CPU', often leading to data loss.
05:21 This is the case cooling fan.
05:23 It keeps the temperature of the CPU normal and prevents overheating.
05:30 Power Supply Unit, also called PSU, supplies power to the computer.
05:37 Now, let's learn how to connect the various components to the CPU.
05:42 Place all the components on the table, as shown.
05:46 Place all the cables on the table, as shown.
05:51 First, let's connect the monitor to the CPU.
05:55 Connect the power cable to the monitor as shown.
06:00 Now, connect the other end to a power supply socket.
06:04 This is the power cable of the CPU.
06:08 Connect it to the CPU as shown.
06:11 Then, connect it to a power supply socket.
06:14 Next, connect the keyboard cable to the CPU as shown.
06:19 The port for the keyboard is usually “purple” in colour.
06:23 You can connect the mouse to the port which is “green” in colour.
06:28 Alternately, you can connect the USB keyboard and mouse to any of the USB ports.
06:35 The remaining USB ports can be used for connecting pen drive, hard disk etc.
06:42 This is a LAN cable
06:44 and this is a LAN port.
06:46 It is a wired connection that allows a computer to connect to a network.
06:52 The other end of the LAN cable is connected to a modem or a wi-fi router.
06:58 You will learn about configuring wi-fi connections in another tutorial.
07:03 The LED light will blink when the LAN port is active and receiving activity.
07:10 You may notice that there are other serial ports on the CPU.
07:15 These are used for connecting PDAs, modem or other serial devices.
07:21 You will also notice that there are some parallel ports on the CPU.
07:25 These are used for connecting devices like printer, scanner etc.
07:31 Now, let's look at the audio jacks.
07:34 The port in “pink” is used for connecting a microphone.
07:38 The port in “blue” is for connecting a line in, for eg- from a radio or tape player.
07:45 The port in “green” is for connecting headphone/speaker or line out.
07:51 Now that we have connected all our devices, let's turn on the computer.
07:57 First of all, switch on the power supply buttons of the monitor and the CPU.
08:03 Now, press the POWER ON button on the monitor.
08:07 And then press the POWER ON switch, on the front of the CPU.
08:12 Usually, you will see a string of words on a black screen when your computer first turns on.
08:18 This is the BIOS system displaying information about
08:22 the computer's central processing unit,
08:25 information about how much memory the computer has,
08:28 and information about the hard disk drives and floppy disk drives.
08:33 BIOS is the software which gives the CPU its first instructions when the computer is turned on.
08:41 The whole process of loading the operating system is called booting the computer.
08:48 When all the necessary checks are done, you will see the operating system's interface.
08:54 If you are an Ubuntu Linux user, you will see this screen.
08:58 And if you are a Windows user, you will see this screen.
09:02 Now, let us briefly look at a laptop.
09:06 Laptops are portable and compact computers.
09:09 A laptop is small and light enough to sit on a person's lap while in use.
09:16 Hence, it is called a 'laptop.
09:18 It has most of the same components as a desktop computer including-
09:23 a display, a keyboard,
09:25 a touchpad which is the pointing and navigating device,
09:29 a CD/DVD reader-writer and
09:32 mic and speakers built into a single unit.
09:36 It also has a lan port and USB ports.
09:40 There is a video port using which one can connect a projector to the laptop.
09:46 The audio jacks are easily identifiable with respective icons for mic and headphones.
09:53 This is the inbuilt cooling fan in the laptop.
09:57 This helps to keep the laptop from overheating.
10:01 A laptop is powered by electricity via an AC adapter and has a rechargeable battery.
10:09 Hence, it is portable and can be used away from a power source.
10:16 Let us summarize. In this tutorial, we have learnt:
10:20 about the various components of a desktop and laptop
10:23 and how to connect the various components of a desktop.
10:28 Watch the video available at the following link.
10:31 It summarizes the Spoken Tutorial project.
10:34 If you do not have a good bandwidth, you can download and watch it.
10:37 The Spoken Tutorial project team: conducts workshops using spoken tutorials.
10:42 Gives certificates for those who pass an online test.
10:46 For more details, please write to: contact@spoken-tutorial.org
10:52 Spoken Tutorial Project is a part of the "Talk to a Teacher" project,
10:56 supported by the National Mission on Education through ICT, MHRD, Government of India.
11:01 More information on this mission is available at the following link.
11:06 The animation and 3D modeling for this tutorial is done by Arthi.
11:11 This is Nancy Varkey from the spoken tutorial project, IIT Bombay, signing off.
11:16 Thanks for joining.

Contributors and Content Editors

Gaurav, Kavita salve, PoojaMoolya, Pratik kamble, Sandhya.np14

Retrieved from "https://script.spoken-tutorial.org/index.php?title=Digital-Divide/D0/Getting-to-know-computers/English-timed&oldid=34486"