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

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| A '''computer''' performs five major functions irrespective of its size -  

| A '''computer''' performs five major functions irrespective of its size -  

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| it accepts '''data''' or ''' instructions''' by way of '''input '''

| it accepts '''data''' or ''' instructions''' by way of '''input '''

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| it processes '''data''' as required by the user  

| it processes '''data''' as required by the user  

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| it stores '''data'''  

| it stores '''data'''  

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| it gives results in the form of '''output '''

| it gives results in the form of '''output '''

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| it controls all '''operations''' inside the '''computer '''

| it controls all '''operations''' inside the '''computer '''

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|enter the '''data''' and '''programs''' into a '''computer''' system in an organised manner  

|enter the '''data''' and '''programs''' into a '''computer''' system in an organised manner  

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| ''' Keyboard, mouse, camera''' and '''scanner''' are some of the '''input devices.'''

| ''' Keyboard, mouse, camera''' and '''scanner''' are some of the '''input devices.'''

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| The ''' Central Processing unit '''

| The ''' Central Processing unit '''

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| stores '''data''' and '''instructions '''

| stores '''data''' and '''instructions '''

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| Typically, the ''' Central Processing unit''' or '''CPU''' looks like this.   

| Typically, the ''' Central Processing unit''' or '''CPU''' looks like this.   

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| 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. '''

   

   

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|We will learn about them in a little while.  

|We will learn about them in a little while.  

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| 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.  

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| '''Monitor''' and '''printer''' are some of the '''output devices. '''

| '''Monitor''' and '''printer''' are some of the '''output devices. '''

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| Generally, a '''desktop computer''' has 4 main components  

| Generally, a '''desktop computer''' has 4 main components  

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|'''Monitor'''

|'''Monitor'''

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| '''CPU'''

| '''CPU'''

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| ''' Keyboard'''  

| ''' Keyboard'''  

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|and  '''Mouse '''

|and  '''Mouse '''

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| A ''' camera, printer''' or '''scanner''' can also be connected to a computer.  

| A ''' camera, printer''' or '''scanner''' can also be connected to a computer.  

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| This is a '''monitor''' or the '''computer screen''', as we call it.  

| This is a '''monitor''' or the '''computer screen''', as we call it.  

|It looks like a '''TV screen.'''  

|It looks like a '''TV screen.'''  

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|-

|It is the '''visual display unit''' of a '''computer. '''

|It is the '''visual display unit''' of a '''computer. '''

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| It displays the '''computer's user interface. '''

| It displays the '''computer's user interface. '''

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|*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.  

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|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.'''

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|This is the '''computer mouse.'''  

|This is the '''computer mouse.'''  

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| Typically, it has 2 clickable buttons and a '''scroll''' button in between.  

| Typically, it has 2 clickable buttons and a '''scroll''' button in between.  

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| Pressing the ''' left mouse button''', activates most actions.  

| Pressing the ''' left mouse button''', activates most actions.  

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| Pressing the ''' right mouse button''', activates more non-standard actions like shortcuts.  

| Pressing the ''' right mouse button''', activates more non-standard actions like shortcuts.  

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|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. '''

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| 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. '''

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| Now, let us see the various parts of the '''CPU.'''

| Now, let us see the various parts of the '''CPU.'''

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| 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.  

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| 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. '''

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|The ''' USB ports''' are used to connect ''' pen-drives''' to the ''' computer. '''

|The ''' USB ports''' are used to connect ''' pen-drives''' to the ''' computer. '''

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| 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.'''

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|-

| Now let's look at the back of the ''' computer. '''

| Now let's look at the back of the ''' computer. '''

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|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. '''

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|This is done using '''cables.'''

|This is done using '''cables.'''

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|There are many '''components''' inside the '''CPU. '''

|There are many '''components''' inside the '''CPU. '''

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|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.  

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|Place all the components on the table, as shown.  

|Place all the components on the table, as shown.  

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|Now, connect the other end to a '''power supply socket'''.  

|Now, connect the other end to a '''power supply socket'''.  

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|This is the '''power cable''' of the CPU.  

|This is the '''power cable''' of the CPU.  

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|Connect it to the '''CPU,''' as shown.  

|Connect it to the '''CPU,''' as shown.  

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|Then, connect it to a '''power supply socket'''

|Then, connect it to a '''power supply socket'''

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|Next, connect the ''' keyboard cable''' to the '''CPU,''' as shown.

|Next, connect the ''' keyboard cable''' to the '''CPU,''' as shown.

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|The '''port ''' for the ''' keyboard''' is usually “purple” in colour.  

|The '''port ''' for the ''' keyboard''' is usually “purple” in colour.  

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|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.  

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|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. '''

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|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.  

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|This is a ''' LAN cable.'''

|This is a ''' LAN cable.'''

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|And this is a '''LAN port.'''

|And this is a '''LAN port.'''

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|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'''.  

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|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. '''

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|You will learn about configuring ''' wi-fi connections''' in another tutorial.  

|You will learn about configuring ''' wi-fi connections''' in another tutorial.  

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|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.  

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|You may notice that there are other '''serial ports''' on the '''CPU. '''

|You may notice that there are other '''serial ports''' on the '''CPU. '''

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|These are used for connecting ''' PDAs, modem''' or other '''serial devices.'''

|These are used for connecting ''' PDAs, modem''' or other '''serial devices.'''

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|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.'''  

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|These are used for connecting devices like ''' printer, scanner''' etc.

|These are used for connecting devices like ''' printer, scanner''' etc.

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|Now, let's look at the ''' audio jacks.'''  

|Now, let's look at the ''' audio jacks.'''  

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|The '''port''' in “pink” is used for connecting a '''microphone.'''

|The '''port''' in “pink” is used for connecting a '''microphone.'''

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|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.  

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|The ''' port''' in “green” is for connecting '''headphone/speaker''' or '''line out.'''

|The ''' port''' in “green” is for connecting '''headphone/speaker''' or '''line out.'''

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|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. '''

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|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.'''

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|Now, press the ''' POWER ON''' button on the '''monitor.'''  

|Now, press the ''' POWER ON''' button on the '''monitor.'''  

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|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.'''

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|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.  

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|This is the '''BIOS system''' displaying information about  

|This is the '''BIOS system''' displaying information about  

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|the '''computer's central processing unit, '''

|the '''computer's central processing unit, '''

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|information about how much memory the '''computer''' has,  

|information about how much memory the '''computer''' has,  

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|and information about the hard disk drives and floppy disk drives.  

|and information about the hard disk drives and floppy disk drives.  

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|'''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.  

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|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. '''

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|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. '''

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|-

|If you are an '''Ubuntu Linux''' user, you will see this screen.  

|If you are an '''Ubuntu Linux''' user, you will see this screen.  

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|And If you are a '''Windows''' user, you will see this screen.  

|And If you are a '''Windows''' user, you will see this screen.  

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|Now, let us briefly look at a '''laptop.'''

|Now, let us briefly look at a '''laptop.'''

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|'''Laptops''' are portable and compact '''computers. '''

|'''Laptops''' are portable and compact '''computers. '''

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|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.  

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|Hence, it is called a ''''laptop. '''

|Hence, it is called a ''''laptop. '''

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|It has most of the same components as a ''' desktop computer''' including  

|It has most of the same components as a ''' desktop computer''' including  

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|a '''display, '''

|a '''display, '''

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|a '''keyboard, '''

|a '''keyboard, '''

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|a ''' touchpad,''' which is the pointing and navigating device  

|a ''' touchpad,''' which is the pointing and navigating device  

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|a ''' CD/DVD reader-writer''' and  

|a ''' CD/DVD reader-writer''' and  

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|'''mic'''  and ''' speakers''' built into a single unit.  

|'''mic'''  and ''' speakers''' built into a single unit.  

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|It also has a ''' lan port'''  and ''' USB ports.'''

|It also has a ''' lan port'''  and ''' USB ports.'''

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|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. '''

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|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'''.  

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|This is the inbuilt ''' cooling fan''' in the '''laptop. '''

|This is the inbuilt ''' cooling fan''' in the '''laptop. '''

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|This helps to keep the ''' laptop''' from overheating.  

|This helps to keep the ''' laptop''' from overheating.  

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|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. '''

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|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.  

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|Let us summarize. In this tutorial we have learnt  

|Let us summarize. In this tutorial we have learnt  

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|about the various components of a ''' desktop''' and ''' laptop '''

|about the various components of a ''' desktop''' and ''' laptop '''

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|and how to connect the various components of a '''desktop  '''

|and how to connect the various components of a '''desktop  '''

|-

|-

| Watch the video available at the following link

| Watch the video available at the following link

|-

|-

|It summaries the Spoken Tutorial project

|It summaries the Spoken Tutorial project

|-

|-

|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

|-

|-

| The Spoken Tutorial project team conducts workshops using spoken tutorials.

| The Spoken Tutorial project team conducts workshops using spoken tutorials.

|-

|-

|Gives certificates for those who pass an online test.  

|Gives certificates for those who pass an online test.  

|-

|-

|For more details, please write to: contact@spoken-tutorial.org  

|For more details, please write to: contact@spoken-tutorial.org  

|-

|-

| 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.

|-

|-

|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.

|-

|-

|More information on this mission is available at the following link

|More information on this mission is available at the following link

|-

|-

| The animation and 3D modeling for this tutorial is done by Arthi

| The animation and 3D modeling for this tutorial is done by Arthi

|-

|-

|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.

|-

|-

|Thanks for joining.

|Thanks for joining.

|}

|}