Prof 5Tech: يونيو 2015

Archive for يونيو 2015

Top 5 Free Methods to Make Your Computer Faster

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

Jack Isaac 7:23 ص اضافة تعليق

Jack Isaac

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

Jack Isaac 7:30 ص اضافة تعليق

Jack Isaac

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

Jack Isaac 1:20 م اضافة تعليق

Jack Isaac

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

Jack Isaac 8:54 ص اضافة تعليق

Jack Isaac

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()

For more Multiple Choice Questions (MCQs): Click Here

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

Jack Isaac 7:57 ص اضافة تعليق

Jack Isaac

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

For more Multiple Choice Questions (MCQs): Click Here

MCQ on Scripting Documents in Client Side JavaScript set-7

Jack Isaac 7:32 ص اضافة تعليق

Jack Isaac

1) .......... method of the window object takes the X and Y coordinates of a point in document coordinates and sets these as the scroll bar offsets.

A. scrollTo()

B. scrollLeft()

C. scrollTop()

D. scrollFor()

2) We can compute the position of the element with ..........., converts that position to document coordinates and then use the scrollTo() method.

A. getBoundingClient()

B. getBounding()

C. getBoundingClientRect()

D. getBoundingRect()

3) The read-only .......... properties of any HTML element return its on screen size, in CSS pixels.

A. offsetWidth()

B. offsetHeight()

C. Both A and B

D. None of the above

4) ......... are like offesetWidth and offesetHeight except that they do not include the border size, only content area and its padding.

A. offesetLeft and offesetTop

B. clientWidth and clientHeight

C. clientLeft and clientTop

D. scrollWidth and scrollHeight

5) ............. properties return the horizontal and vertical distance between the outside of an element's padding and the outside of its border.

A. offesetLeft and offesetTop

B. clientWidth and clientHeight

C. clientLeft and clientTop

D. scrollWidth and scrollHeight

6) ........... are the size of an element's content area plus its padding plus any overflowing content.

A. offesetLeft and offesetTop

B. clientWidth and clientHeight

C. clientLeft and clientTop

D. scrollWidth and scrollHeight

7) Which of the following expressions in JavaScript is/are True, if we have to select a form name "address" has a first element with name "street".

A. document.forms.address[0]

B. document.forms.address.street

C. document.address.street

D. All of the above

8) Which of the following is/are the valid expressions, if we have to select a <form> with a name="address" attribute.

i) window.address

ii) document.address

iii) document.forms.address

iv) document.forms[n]

A. i, ii and iii only

B. ii, iii and iv only

C. i, ii and iv only

D. All i, ii, iii and iv

9) .......... method returns a selection object that describes the current selection as a sequence of one or more range objects.

A. window.objectSelection()

B. window.getSelection()

C. document.getSelection()

D. document.currentSelection()

10) State whether the following statements are True or False for the document.write() method in client side JavaScript.

i) The document.write() method was one of the very first scriptable APIs implemented by Netscape2 web browser.

ii) document.write() concatenates its string arguments and inserts the resulting string into the document at the location of the script element that invoked it.

iii) The document.write() method is commonly used in modern code i.e. innerHTML property and other DOM techniques.

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

11) When a document contains scrollable elements with overflowing content, the ............ method doesn't work correctly because it does not take scroll bar position into account.

A. getElementPosition()

B. getScrollPosition()

C. getScrollOffsets()

D. getBoundingClientRect()

12) .......... method is used in the case of passing the coordinates of the mouse pointer to determine which element the mouse is over.

A. getBoundingClientRect()

B. getElementFromPoint()

C. elementFromPoint()

D. getElementCoordinates()

13) The .......... method of the window is similar to scroll() and scrollTo(), but its arguments are relative and are added to the current scroll bar offsets.

A. scrollTop()

B. scrollBy()

C. scrollLeft()

D. scrollIntoView()

14) The ......... method ensures that the element on which it is invoked is visible in the view-port.

A. scrollTop()

B. scrollBy()

C. scrollLeft()

D. scrollIntoView()

15) The .......... property specifies which element the properties are relative to and if it is null, the properties are document object.

A. offsetLeft

B. offsetTop

C. offsetParent

D. offsetRelative

Answers:

1) A. scrollTo()
2) C. getBoundingClientRect()
3) C. Both A and B
4) B. clientWidth and clientHeight
5) C. clientLeft and clientTop
6) D. scrollWidth and scrollHeight
7) D. All of the above
8) D. All i, ii, iii and iv
9) B. window.getSelection()
10) A. i-True, ii-True, iii-False
11) A. getElementPosition()
12) C. elementFromPoint()
13) B. scrollBy()
14) D. scrollIntoView()
15) C. offsetParent

اعلان 728x90

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

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