يونيو 2015

1. How to Update Computer

If you need to update your computer, go to control panel from desktop or start menu and click on windows update then you will see the following screen, after that click on check for update. It will start to update your computer.

2. How to Set Update Computer Automatically

To set update your computer automatically, from windows update window click on "change setting" option, you will see the following screen. Choose "Install updates automatically" from drop down list, then click on OK.

3. How to View Computer MAC and IP Address

If you need to know your computers MAC address also called physical address and Internet Protocol(IP) address, you have to right click on computer icon on notification area located on task bar and click on open network and sharing center. OR go to control panel and click on Network and Sharing Center option, Click on Ethernet option and then Details button as shown below. You can view its IP address and Physical Address or MAC Address.

4. How to Change Computer Name

To change the name of computer go to control panel and open system option from there and then Click on Change setting option and click on change button located on computer name tab then change your computer name and click on OK. To open system properties you can right click on "my computer" and click on properties also.

5. How to Computer Print Screen

You can easily capture your screen for print by simply pressing "Print Screen Request" key from keyboard and saving it using simple photo editing application. To do this at first open the screen which you want to save using print screen request. Press the key "Print Screen Request" and paste on any image editing application.

6. How to Show Computer Desktop

If you are working on different multiple windows, you may need to close all the windows and may need to open the desktop items. You can show computer desktop by simply right clicking on task-bar and clicking on "show the desktop" option.

7. How to Record Voice in Computer

If you need to record voice in computer, you can do it by using sound recorder services of windows. For this go to start menu and search for sound recorder, open and record using it. You can also record by installing other applications on computer.

8. How to Change Computer Password

If you are using some user name and password to login into your computer and if you need to change its password for some region, you can do it by using user account option located in control panel. In windows 8, you can do it from account option on PC settings. After you have gone to the accounts option click on sign in option and then click on change button. Now you can change your password.

9. How to Computer Clean Up

If you wanted to clean up your disks or drives to speed up your computer, you can do it by selecting respective drives and doing clean up using drive tools. For this, open My computer to view drives select required drive you want to clean and click on cleanup option located on manage tab.

10. How to Lock/Unlock Computer

If you are using your computer, have to go away for some time, you can lock your computer until you return back. You can do it by simply going to start then clicking on user account name and lock option. You can unlock it by simply entering your password there.

How to Know Your Computer Configuration Easily

SmSm 11:34 م Computer Fundamental IT Tutorials 0

If you don't know your computers configurations like how much RAM is used, which operating system was installed, what's the name of computer, you can find them easily from DirectX Diagnostic Tool. By using this tool you can find not only these things but also know about the configuration of display adapter, sound and input devices. Here is a sort and very easier method to find out those information about computer configuration.

How to Open DirectX Diagnostic Tool

To open DirectX Diagnostic Tool, go to Run and type "dxdiag" then click on OK. The DirectX Diagnostic Tool dialog box will appear which gives information about the following.

On the System Tab, you can find the following information.

Machine name:         It includes the name of your computer.
Operating System:   It includes the name of Operating system installed on your computer.
Language:                 It includes the language used on computer.
System Manufacturer: It includes the manufacturer name of system.
System Model:             It includes model number of the system.
Processor:                    It includes the information about the processor.
Memory:                      It includes how much RAM is used on computer.

On the Display Tab, you can find the following information.

Card name:        It is the name of Display Adapter
Manufacturer:   It is the name of manufacturer of display adapter.
Chip type:    It is the type of Graphics Chip

On sound Tab, you can find the information about your sound devices attached on computer.

And the last Tab of DirectX Diagnostic Tool is input, which includes information about input devices used in computer.

How to Know Computer Supports 32-bit or 64-bit

There are different methods to get information about your processor that supports 32-bit or 64-bit and the installed operating system is 32 or 64 bit, I have presented some of them below.

1. At first, go my computer, right click on it and click on properties option or go to control panel and click on system option.

2. Here the system properties window will appear, on the system block you can find the information about your system model, processor type, installed memory(RAM) and system type which includes what type OS installed 32 or 64 bit and processor supports 32 or 64 bit. Here in the image below system has 32-bit operating system and have 64-bit processor, so in this computer 64-bit operating system can be installed.

How to Get System Information on Windows 8

On windows 8 you can find system information from PC settings also. You can get PC information from PC settings with the following steps.

At first, search PC setting from window start and open it.
Go to PC and devices and then PC info.

How to Get System Information on Windows 8

Top 5 Free Methods to Make Your Computer Faster

SmSm 1:50 ص IT Tips and Tricks IT Tutorials 0

If your computer runs slowly during start-up or while running application programs or browsing websites, it is possible to make it run faster even using very simple methods. You can make your computer faster by applying very simple techniques or methods. Here I am going to describe those methods along with their steps to perform it. Follow these methods and feel your computer is running faster then before.

# Delete Temporary Files

If there are lots of temporary files are stored on computer, may slow down your computer. So it may be helpful to increase the speed of your computer, if it has been deleted. Here are the steps to delete temporary files from your computer.

At first, go to Run from start menu and type "%temp%" on it and click on OK. Then the following window will appear, delete them by selecting All.

#Remove Unnecessary Programs From Startup

The application programs which are placed on startup runs while starting your computer, which may slow down your computer. You can remove unnecessary programs from startup using the steps given below.

Right click on Task bar and click on task manager as given below.
Then Task manager dialog box will appear, click on startup tab where the programs are listed which are placed on startup. Click on the program which you don't want to run on starting and then click on Disable button.

# Empty Your Recycle Bin and Clear Your Desktop

Deleting items from recycle bin and removing unnecessary files from desktop also helps to improve the speed of you computer.
To make your recycle bin empty, go to recycle bin which is located on desktop and go to Manage tab and click on "Empty recycle bin".

# Uninstall Unnecessary Application Programs

You can also make your computer faster by uninstalling unnecessary application programs from your computer.

To uninstall programs from your computer, at first go to control panel and click on uninstall program located under programs, select the required program you want to uninstall and click on uninstall as given below.

# Delete Browsing History and Internet Cookies

Deleting browsing history and internet cookies also helps to improve the speed of your computer. Here are the steps to delete browsing history from your computer.

To remove history and cookies from Mozilla firefox, go to menu and click on history button as given below.
Then clear history dialog box will appear, select everything to clear and click on Clear now button.
To remove history and cookies from Google chrome, go to menu and click on history button, then the following dialog box will appear "select the beginning of time" and click on clear browsing data as given on image below.

How to Keep Computer from Sleeping

SmSm 10:23 م Computer Fundamental IT Tutorials 0

When the computer is not being used for some duration of time i.e. 5, 10 or 15 min, the screen will automatically turned off to save the power used by the computer. It's happened due to what settings are saved on power option on control panel. From this option, you can choose power and display settings that you want on your computer. In this post I am describing "how to keep computer from sleeping" and the other methods to adjust power setting for computer.

How to Change Sleep and Display Setting

You can change sleep and display setting to make computer how long time it will display while it is not being used. Here below explained with steps to change its setting.

At first, go to control panel and choose power options. On the power option window, you can see different power plans like balanced, power saver and high performance.
Click on the option "Choose when to turn off the display" from the left side pane of this window.
On the Edit plan setting window, you can choose turn of display time for your selected power plan form 1 minute to 5 hours as your requirement also there is a option Never, to never sleep the computer.

How to Change Advanced Power Setting

Along with sleep and display setting you can change other settings also on advanced power setting. You can change setting for different power plans and can also create new power plan.

As given on the first step to change sleep and display setting, open power option window. Click on change plan setting option for which power plan you want to change setting and then click on "change advanced power setting".
On the Advanced setting option you can change the settings for turn off hard disk, slide show, wireless adapter, sleep, display and multimedia.
From power buttons and lid option, you can change the setting for power button action and sleep button action.
On processor power management option, you can choose for minimum processor state, system cooling policy and maximum processor state.

How to Share Printer for Computers on LAN

SmSm 10:30 م Computer Fundamental IT Tutorials 0

Not only from Network printer, it is possible to print from other computers on LAN by sharing local printer connected on one computer on Local Area Network. To do this, you have to share the printer on LAN and have to install the shared printer on the computer from which you want to print. In this post I am describing the methods and steps for sharing printers on LAN.

How to Share a Local Printer on LAN

Here are some steps for sharing a local printer on Local Area Network.

At first, Go to the control panel and click on "view devices and printers" located under Hardware and Sound option.
Under the printers category right click on printers name which you want to share and choose on "printer properties" option.
Then printer properties dialog box will appear as given below, click on sharing Tab.
Select on the "share this printer" option also give the name for the printer which is being shared as given on the picture below.
After completing all of the task click on OK to close the dialog box.

How to Install Shared Printer in Client Computer on LAN

To complete the steps for sharing local computer on LAN and to print through client computer, you have to install this shared printer on the client computer also. The required steps to complete this task are given below.

At first, Go to the control panel as mentioned on the previous steps and click on "Add printer" option.
The wizard started to search for installed shared printers on LAN, if the printer you have to install is listed select it and go to next until finish.
If the printer is not listed from searching, Click on the option "The printer that I want isn't Listed".
On find a printer by other options click on "select a shared printer by name" and click on Browse button.
Open the computer from where you want to install printer, here you may ask for login if the computer having printer is protected by a password.
After opening computer, select the desired printer you want to install and click on next in wizard until finish.
Now your printer is ready, you can print any document selecting on this printer but you should be noted that the host computer must be turned on while printing.

How to Share Drive Folder and File in Computer Network

SmSm 4:20 ص Computer Fundamental IT Tutorials 0

You can share drives, folders and files of your PC to your Computer Network, after sharing these, you can access them from another computers in same computer network. It can be shared for specific computer or for everyone as your requirement. But you should be careful for security of your files, folders and drives while sharing them on the network. Today I am going to describe some methods for sharing drives, folders and files in computer network.

How to Share Drive in Computer Network

You can share your computer drive in computer network, using the following methods.

At first Go to "My Computer" from Desktop or Start Menu and Open it.
Right Click on the required drive which you want to share and Choose "Share width" and the "Advanced sharing.." As given below.
After that, drive properties window will appear, then click on "Advanced sharing" button.
That displays advanced sharing dialog box then select on the "Share this folder" check box, give required comments and the share name as given on the screen below.
After completing all of these click on OK button.

How to Share Folder and Files in Computer Network

You can share your computer folders and files in computer network, using the following methods.

At first, Go to your folder or file and right click on it, Choose "Share with" option and then click on "Specific people.." as on the screen below.
On the File sharing dialog box, choose people to share with, you can select specific computer or can choose everyone and click on "share" button at last.
If you want to Stop sharing them on computer network, Go to step 1 and choose "Stop sharing" option instead of "Specific people".
After clicking on "Stop Sharing" option, you can see file sharing dialog from where you can choose the option "Stop Sharing" - To remove all the permissions for all the people and "Change Sharing Permissions" option - To add or remove people or change the permission.
While changing permissions, you can do as given on the step 2.

Solved Objective Questions on jQuery Library set-1

SmSm 11:54 م JavaScript Multiple Choice Question (MCQ) 0

1) Which of the following statements about the features of jQuery are True.

i) jQuery has an expressive syntax for referring to elements in the document.

ii) jQuery has an efficient query method for finding the set of document elements that match a CSS selector.

iii) jQuery has a useful set of methods for manipulating selected elements.

A. i, ii and iii only

B. i, ii and iv only

C. i, iii and iv only

D. All i, ii, iii and iv

2) If you are using $ in your own code, or are using another library, such as prototype, that uses $, you can call .......... to restore $ to its original value.

A. jQuery.noConflict()

B. jQuery.removeConflict()

C. jQuery.restoreDefault()

D. jQuery.restoreFunction()

3) Which of the following is/are the sources of Content Distribution Network(CDN) for jQuery.

A. jQuery CDN

B. Microsoft CDN

C. Google CDN

D. All of the above

4) Which of the following are the different ways of invoking jQuery() function.

i) invoke $() is to pass a CSS selector to it

ii) invoke $() is to pass an element or document or window object

iii) invoke $() is to pass a string of JavaScript code

iv) invoke $() is to pass a function to it

A. i, ii and iii only

B. i, ii and iv only

C. i, iii and iv only

D. All i, ii, iii and iv

5) The jQuery library defines a number of utility functions, one of them is ............ function for general purpose iteration and another is ............ function for parsing JSON text.

A. jQuery.each(), jQuery.JSONtext()

B. jQuery.iterate(), jQuery.parseJSON()

C. jQuery.each(), jQuery.parseJSON()

D. jQuery.general(), jQuery.parseJSON()

6) The value returned by $() are ......... ,they are array like, they have a length property and have numeric properties from o to length -1.

A. jQuery result

B. jQuery objects

C. jQuery array

D. jQuery length

7) In order to loop over all elements in a jQuery object, you can call the .......... method instead of writing a for loop.

A. array.map()

B. index()

C. each()

D. map()

8) ......... method expects a callback function as its sole argument, and it invokes that callback function once for each element in the jQuery object in document order.

A. array.map()

B. index()

C. each()

D. map()

9) ........... accepts a callback function as its argument and invokes that function once for each element of the jQuery object.

A. is()

B. index()

C. each()

D. map()

10) ........ takes a selector as its argument and returns true if at least one of the selected elements also matches the specified selector.

A. is()

B. index()

C. each()

D. map()

11) ........ handles browser incompatibilities and special cases and allows you to use either HTML attribute names of their JavaScript property equivalents.

A. attr()

B. removeattr()

C. handleattr()

D. useattr()

12) Match the following methods for working with the class attribute defined by jQuery with their definitions.

i) addClass()           a) tests for the presence of specified class

ii) toggleClass()      b) adds classes to elements that don't already have

iii) hasClass()        c) remove classes from selected elements

iv) removeClass()   d) adds classes from selected elements

A. i-b, ii-c, iii-d, iv-a

B. i-c, ii-d, iii-a, iv-b

C. i-d, ii-c, iii-b, iv-a

D. i-d, ii-b, iii-a, iv-c

13) ........ is a method for setting and querying the value attribute of HTML form elements and also for querying and setting the selection state of check boxes, radio buttons and <select> elements.

A. set()

B. val()

C. query()

D. attr()

14) In jQuery, .......... method measures positions relative to the document and returns them in the form of an object with left and top properties that hold the X and Y coordinates.

A. offset()

B. position()

C. offsetparent()

D. setparent()

15) The .......... method is like offset(), except that it is a getter only and it returns element positions relative to their offset parent, rather to the document as a whole.

A. width()

B. position()

C. offsetparent()

D. setparent()

Answers

1) D. All i, ii, iii and iv
2) A. jQuery.noConflict()
3) D. All of the above
4) B. i, ii and iv only
5) C. jQuery.each(), jQuery.parseJSON()
6) B. jQuery objects
7) C. each()
8) C. each()
9) D. map()
10) A. is()
11) A. attr()
12) D. i-d, ii-b, iii-a, iv-c
13) B. val()
14) A. offset()
15) B. position()

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Solved MCQ on Handling Events in Client Side JavaScript set-8

SmSm 10:57 م JavaScript Multiple Choice Question (MCQ) 0

1) ........... include legacy event types such as "mousedown", "mousemove", "mouseup", "keydown", "keypress","keyup","touchmove" and "gesturechange" events.

A. Device dependent input events

B. Device independent input events

C. User interface events

D. State change events

2) ............ are not triggered directly by user activity, but by network or browser activity, and indicate some kind of lifecycle.

A. Device dependent input events

B. Device independent input events

C. User interface events

D. State change events

3) ............ include the focus event, the change event when the user changes the value and the submit event when the user clicks a submit button.

A. Device dependent input events

B. Device independent input events

C. User interface events

D. State change events

4) ........... allows the same event handler function to be registered more than once. When an event of the specified type occurs, the registered function will be invoked as many times as it was registered.

A. addEvent()

B. addMultipltEvent()

C. attachEvent()

D. reattachEvent()

5) Which of the following statements about the arguments of addEventListener() is/are True.

i) The first argument to addEventListener() is the event type for which the handler is being registered.

ii) The second argument to addEventListener() is the function that should be invoked when the specified type of event occurs.

iii) The third argument to addEventListener() is a numerical value.

A. i and ii only

B. i and iii only

C. ii and iii only

D. All i, ii and iii

6) When an event occurs on an object, all of the handlers registered for that type of event are invoked, in the order in which they were .........

A. occurred

B. registered

C. invoked

D. initialized

7) Invoking .......... more than once on the same object with the same arguments has no effect, the handler function remains registered only once, and repeated invocation does not alter the order in which handlers are invoked.

A. addEvent()

B. addMultipltEvent()

C. attachEvent()

D. addEventListener()

8) State which of the following statements are True or False about the rules of invocation order for event handler in JavaScript.

i) Handlers registered by setting an object property of HTML attribute, if any are always invoked first.

ii) Handlers registered with addEventListner() are invoked in the order in which they were registered.

iii) Handlers registered with attachEvent() may be invoked in any order and the code should not depend on sequential invocation.

A. i-True, ii-True, iii-False

B. i-True, ii-False, iii-False

C. i-True, ii-True, iii-True

D. i-False, ii-False, iii-True

9) .......... is universally supported also it works in all browsers including IE, and works for all handlers, regardless of how they are registered.

A. Event bubbling

B. Event handling

C. Event capturing

D. Event registering

10) ............, only works with event handlers registered with addEventListner() when the third argument is True.

A. Event bubbling

B. Event handling

C. Event capturing

D. Event registering

11) In browsers that support addEventListner(), we can also cancel the default action for an event by invoking the ........... method of the event object.

A. preventBrowsers()

B. preventDefault()

C. preventPropagation()

D. preventEvent()

12) The .............. event is fired when the document has been loaded and parsed and any deferred scripts have been executed.

A. DOMContent()

B. DOMContentLoad()

C. DOMLoaded()

D. DOMContentLoaded()

13) .......... is a user interface for transferring data between a "drag source" and "drop target" that may be in the same application or in different applications.

A. Drag-and-drop

B. User-drag-and-drop

C. Drag source-and-drop target

D. Source-drag-and-drop-target

14) Which of the following statements are True about the APIs for Implementing Drag-and-drop.

i) They have to tie into the underlying OS so that they can work between unrelated applications.

ii) They must provide a way for a drag source to specify the icon or image to be dragged.

iii) They must provide event-based notification to both the drag source and drop target of the progress of the Drag-and-drop interaction.

A. i and ii only

B. i and iii only

C. ii and iii only

D. All i, ii and iii

15) ......... objects have altKey, ctrlKey, metaKey and shiftKey properties, which are set to True if the corresponding modifier key is held down when the event occurs.

A. Key down

B. Key event

C. Key up

D. Key press

Answers

1) A. Device dependent input events
2) D. State change events
3) C. User interface events
4) C. attachEvent()
5) A. i and ii only
6) B. registered
7) D. addEventListener()
8) C. i-True, ii-True, iii-True
9) A. Event bubbling
10) C. Event capturing
11) B. preventDefault()
12) D. DOMContentLoaded()
13) A. Drag-and-drop
14) D. All i, ii and iii
15) B. Key event

1. How to Update Computer

2. How to Set Update Computer Automatically

3. How to View Computer MAC and IP Address

4. How to Change Computer Name

5. How to Computer Print Screen

6. How to Show Computer Desktop

7. How to Record Voice in Computer

8. How to Change Computer Password

9. How to Computer Clean Up

10. How to Lock/Unlock Computer

Related Posts

How to Open DirectX Diagnostic Tool

On the System Tab, you can find the following information.

On the Display Tab, you can find the following information.

How to Know Computer Supports 32-bit or 64-bit

How to Get System Information on Windows 8

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# Delete Temporary Files

#Remove Unnecessary Programs From Startup

# Empty Your Recycle Bin and Clear Your Desktop

# Uninstall Unnecessary Application Programs

# Delete Browsing History and Internet Cookies

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How to Change Sleep and Display Setting

How to Change Advanced Power Setting

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How to Share a Local Printer on LAN

How to Install Shared Printer in Client Computer on LAN

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How to Share Drive in Computer Network

How to Share Folder and Files in Computer Network

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