Google Made The Tiniest Change To Its Corporate Logo — See If You Can Even Spot It

Google Change its Logo this Weekend, Reddit was 1st to spot the change. "g" and "l" are moved slightly to look better

Old Logo

New Logo

check this link Gif File Click Me  to look clear what changed has been done by Google because of pixel Off now its look better anyways.

Unblock Youtube in Pakistan Without any Software, Proxy, VPN

YouTube is Second Largest Search Engine after Google . In Pakistan YouTube is Ban on May 2010 due to the number of "non-Islamic objectionable videos" which insulting ISLAM uploaded on YouTube. The following a decision taken by the Pakistan Telecommunication Authority (PTA). There are many Lecture on YouTube on Different Subjects of World's most famous Universities. So, i will tell you How to open YouTube In Pakistan  For Educational purpose Only    

STEP : 1

Go to Control Panel and Select "Network and Sharing Center Folder"

STEP : 2

Click On "Set up a new connection or network"

STEP : 3

 then Click on "Connect to a Workplace"

STEP : 4

Now, Select the 1st option “Use my internet connection VPN” 

 STEP : 5

Put the values in "internet address:" and "destination fields:" You can choose from USA and UK settings from here.

USA Best VPN

VPN Server  : us.mybestvpn.com

VPN Username: mybestvpn

VPN Password: freevpn

VPN Protocol: PPTP VPN

---------------------------------------

UK Best VPN

VPN Server  : uk.mybestvpn.com

VPN Username: mybestvpn

VPN Password: freevpn

VPN Protocol: PPTP VPN

 STEP : 6

when you put User and Pass then Click On "Connect"

STEP : 7

you have done, Now you can visit any page first time it will show Agreement just click on "I AGREE" 

YouTube Open Congratz....

China bans government purchases of Windows 8, surprising Microsoft

China Govt Banned Windows 8 on May 20, Beijing banned government computers using Microsoft's latest operating system Windows 8. This command is the Beijing Central Government Procurement Center released, is part of the notification on the use of energy-saving products.

The report says that this notice is published online last week. Microsoft said in a statement, "We are surprised that the notification referred to in Windows 8." Microsoft said, they have been actively cooperating with Beijing and other government agencies to meet all government procurement requirements.
Beijing News Agency did not explain how this ban has a relationship with the use of energy-saving products and how it can ensure safety.
According to former CEO Steve Ballmer told employees reported in 2011 that because of plagiarism, even if Microsoft's sales in China to catch up sales in the U.S., but in China the income earned even less than the Netherlands.
Last month, Microsoft ending support for Windows XP in order to encourage users to use newer and more secure versions of Windows. This potentially allows XP users vulnerable to viruses and hacker attacks. XP system is widely used in China.

Keyboard Shortcuts (Microsoft Windows)

More than 100 Keyboard Shortcuts must read...

Keyboard Shortcuts (Microsoft Windows)
1. CTRL+C (Copy)
2. CTRL+X (Cut)
3. CTRL+V (Paste)
4. CTRL+Z (Undo)
5. DELETE (Delete)
6. SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin)
7. CTRL while dragging an item (Copy the selected item)
8. CTRL+SHIFT while dragging an item (Create a shortcut to the selected item)
9. F2 key (Rename the selected item)
10. CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word)
11. CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word)
12. CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph)
13. CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph)
14. CTRL+SHIFT with any of the arrow keys (Highlight a block of text)
SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document)
15. CTRL+A (Select all)
16. F3 key (Search for a file or a folder)
17. ALT+ENTER (View the properties for the selected item)
18. ALT+F4 (Close the active item, or quit the active program)
19. ALT+ENTER (Display the properties of the selected object)
20. ALT+SPACEBAR (Open the shortcut menu for the active window)
21. CTRL+F4 (Close the active document in programs that enable you to have multiple documents opensimultaneou sly)
22. ALT+TAB (Switch between the open items)
23. ALT+ESC (Cycle through items in the order that they had been opened)
24. F6 key (Cycle through the screen elements in a window or on the desktop)
25. F4 key (Display the Address bar list in My Computer or Windows Explorer)
26. SHIFT+F10 (Display the shortcut menu for the selected item)
27. ALT+SPACEBAR (Display the System menu for the active window)
28. CTRL+ESC (Display the Start menu)
29. ALT+Underlined letter in a menu name (Display the corresponding menu) Underlined letter in a command name on an open menu (Perform the corresponding command)
30. F10 key (Activate the menu bar in the active program)
31. RIGHT ARROW (Open the next menu to the right, or open a submenu)
32. LEFT ARROW (Open the next menu to the left, or close a submenu)
33. F5 key (Update the active window)
34. BACKSPACE (View the folder onelevel up in My Computer or Windows Explorer)
35. ESC (Cancel the current task)
36. SHIFT when you insert a CD-ROMinto the CD-ROM drive (Prevent the CD-ROM from automatically playing)

Dialog Box - Keyboard Shortcuts
1. CTRL+TAB (Move forward through the tabs)
2. CTRL+SHIFT+TAB (Move backward through the tabs)
3. TAB (Move forward through the options)
4. SHIFT+TAB (Move backward through the options)
5. ALT+Underlined letter (Perform the corresponding command or select the corresponding option)
6. ENTER (Perform the command for the active option or button)
7. SPACEBAR (Select or clear the check box if the active option is a check box)
8. Arrow keys (Select a button if the active option is a group of option buttons)
9. F1 key (Display Help)
10. F4 key (Display the items in the active list)
11. BACKSPACE (Open a folder one level up if a folder is selected in the Save As or Open dialog box)

Microsoft Natural Keyboard Shortcuts
1. Windows Logo (Display or hide the Start menu)
2. Windows Logo+BREAK (Display the System Properties dialog box)
3. Windows Logo+D (Display the desktop)
4. Windows Logo+M (Minimize all of the windows)
5. Windows Logo+SHIFT+M (Restorethe minimized windows)
6. Windows Logo+E (Open My Computer)
7. Windows Logo+F (Search for a file or a folder)
8. CTRL+Windows Logo+F (Search for computers)
9. Windows Logo+F1 (Display Windows Help)
10. Windows Logo+ L (Lock the keyboard)
11. Windows Logo+R (Open the Run dialog box)
12. Windows Logo+U (Open Utility Manager)
13. Accessibility Keyboard Shortcuts
14. Right SHIFT for eight seconds (Switch FilterKeys either on or off)
15. Left ALT+left SHIFT+PRINT SCREEN (Switch High Contrast either on or off)
16. Left ALT+left SHIFT+NUM LOCK (Switch the MouseKeys either on or off)
17. SHIFT five times (Switch the StickyKeys either on or off)
18. NUM LOCK for five seconds (Switch the ToggleKeys either on or off)
19. Windows Logo +U (Open Utility Manager)
20. Windows Explorer Keyboard Shortcuts
21. END (Display the bottom of the active window)
22. HOME (Display the top of the active window)
23. NUM LOCK+Asterisk sign (*) (Display all of the subfolders that are under the selected folder)
24. NUM LOCK+Plus sign (+) (Display the contents of the selected folder)
25. NUM LOCK+Minus sign (-) (Collapse the selected folder)
26. LEFT ARROW (Collapse the current selection if it is expanded, or select the parent folder)
27. RIGHT ARROW (Display the current selection if it is collapsed, or select the first subfolder)

Shortcut Keys for Character Map
After you double-click a character on the grid of characters, you can move through the grid by using the keyboard shortcuts:
1. RIGHT ARROW (Move to the rightor to the beginning of the next line)
2. LEFT ARROW (Move to the left orto the end of the previous line)
3. UP ARROW (Move up one row)
4. DOWN ARROW (Move down one row)
5. PAGE UP (Move up one screen at a time)
6. PAGE DOWN (Move down one screen at a time)
7. HOME (Move to the beginning of the line)
8. END (Move to the end of the line)
9. CTRL+HOME (Move to the first character)
10. CTRL+END (Move to the last character)
11. SPACEBAR (Switch between Enlarged and Normal mode when a character is selected)
Microsoft Management Console (MMC)

Main Window Keyboard Shortcuts
1. CTRL+O (Open a saved console)
2. CTRL+N (Open a new console)
3. CTRL+S (Save the open console)
4. CTRL+M (Add or remove a console item)
5. CTRL+W (Open a new window)
6. F5 key (Update the content of all console windows)
7. ALT+SPACEBAR (Display the MMC window menu)
8. ALT+F4 (Close the console)
9. ALT+A (Display the Action menu)
10. ALT+V (Display the View menu)
11. ALT+F (Display the File menu)
12. ALT+O (Display the Favorites menu)

MMC Console Window Keyboard Shortcuts
1. CTRL+P (Print the current page or active pane)
2. ALT+Minus sign (-) (Display the window menu for the active console window)
3. SHIFT+F10 (Display the Action shortcut menu for the selected item)
4. F1 key (Open the Help topic, if any, for the selected item)
5. F5 key (Update the content of all console windows)
6. CTRL+F10 (Maximize the active console window)
7. CTRL+F5 (Restore the active console window)
8. ALT+ENTER (Display the Properties dialog box, if any, for theselected item)
9. F2 key (Rename the selected item)
10. CTRL+F4 (Close the active console window. When a console has only one console window, this shortcut closes the console)

Remote Desktop Connection Navigation
1. CTRL+ALT+END (Open the Microsoft Windows NT Security dialog box)
2. ALT+PAGE UP (Switch between programs from left to right)
3. ALT+PAGE DOWN (Switch between programs from right to left)
4. ALT+INSERT (Cycle through the programs in most recently used order)
5. ALT+HOME (Display the Start menu)
6. CTRL+ALT+BREAK (Switch the client computer between a window and a full screen)
7. ALT+DELETE (Display the Windows menu)
8. CTRL+ALT+Minus sign (-) (Place a snapshot of the active window in the client on the Terminal server clipboard and provide the same functionality as pressing PRINT SCREEN on a local computer.)
9. CTRL+ALT+Plus sign (+) (Place asnapshot of the entire client window area on the Terminal server clipboardand provide the same functionality aspressing ALT+PRINT SCREEN on a local computer.)

Microsoft Internet Explorer Keyboard Shortcuts
1. CTRL+B (Open the Organize Favorites dialog box)
2. CTRL+E (Open the Search bar)
3. CTRL+F (Start the Find utility)
4. CTRL+H (Open the History bar)
5. CTRL+I (Open the Favorites bar)
6. CTRL+L (Open the Open dialog box)
7. CTRL+N (Start another instance of the browser with the same Web address)
8. CTRL+O (Open the Open dialog box,the same as CTRL+L)
9. CTRL+P (Open the Print dialog box)
10. CTRL+R (Update the current Web )

SHARE IT WITH YOUR FRIENDS......!!

Run Commands In Windows Xp/vista /7 /8 /8.1 /9

Useful RUN Commands !
1. Accessibility Controls - access.cpl
2. Accessibility Wizard - accwiz3. Add Hardware Wizard - hdwwiz.cpl
4. Add/Remove Programs - appwiz.cpl
5. Administrative Tools - control admintools
6. Automatic Updates - wuaucpl.cpl
7. Bluetooth Transfer Wizard - fsquirt
8. Calculator - calc
9. Certificate Manager - certmgr.msc
10. Character Map - charmap
11. Check Disk Utility - chkdsk
12. Clipboard Viewer - clipbrd
13. Command Prompt - cmd
14. Component Services - dcomcnfg
15. Computer Management - compmgmt.msc
16. Control Panel - control
17. Date and Time Properties - timedate.cpl
18. DDE Shares - ddeshare
19. Device Manager - devmgmt.msc
20. Direct X Troubleshooter - dxdiag
21. Disk Cleanup Utility - cleanmgr
22. Disk Defragment - dfrg.msc
23. Disk Management - diskmgmt.msc
24. Disk Partition Manager - diskpart
25. Display Properties - control desktop
26. Display Properties - desk.cpl
27. Dr. Watson System Troubleshooting Utility - drwtsn32
28. Driver Verifier Utility - verifier
29. Event Viewer - eventvwr.msc
30. Files and Settings Transfer Tool - migwiz
31. File Signature Verification Tool - sigverif
32. Findfast - findfast.cpl
33. Firefox - firefox
34. Folders Properties - control folders
35. Fonts - control fonts
36. Fonts Folder - fonts
37. Free Cell Card Game - freecell
38. Game Controllers - joy.cpl
39. Group Policy Editor (for xp professional) - gpedit.msc
40. Hearts Card Game - mshearts
41. Help and Support - helpctr
42. HyperTerminal - hypertrm
43. Iexpress Wizard - iexpress
44. Indexing Service - ciadv.msc
45. Internet Connection Wizard - icwconn1
46. Internet Explorer - iexplore
47. Internet Properties - inetcpl.cpl
48. Keyboard Properties - control keyboard
49. Local Security Settings - secpol.msc
50. Local Users and Groups - lusrmgr.msc
51. Logs You Out Of Windows - logoff
52. Malicious Software Removal Tool - mrt
53. Microsoft Chat - winchat
54. Microsoft Movie Maker - moviemk
55. Microsoft Paint - mspaint
56. Microsoft Syncronization Tool - mobsync
57. Minesweeper Game - winmine
58. Mouse Properties - control mouse
59. Mouse Properties - main.cpl
60. Netmeeting - conf
61. Network Connections - control netconnections
62. Network Connections - ncpa.cpl
63. Network Setup Wizard - netsetup.cpl
64. Notepad - notepad
65. Object Packager - packager
66. ODBC Data Source Administrator - odbccp32.cpl
67. On Screen Keyboard - osk
68. Outlook Express - msimn
69. Paint - pbrush
70. Password Properties - password.cpl
71. Performance Monitor - perfmon.msc
72. Performance Monitor - perfmon
73. Phone and Modem Options - telephon.cpl
74. Phone Dialer - dialer
75. Pinball Game - pinball
76. Power Configuration - powercfg.cpl
77. Printers and Faxes - control printers
78. Printers Folder - printers
79. Regional Settings - intl.cpl
80. Registry Editor - regedit
81. Registry Editor - regedit32
82. Remote Access Phonebook - rasphone
83. Remote Desktop - mstsc
84. Removable Storage - ntmsmgr.msc
85. Removable Storage Operator Requests - ntmsoprq.msc
86. Resultant Set of Policy (for xp professional) - rsop.msc
87. Scanners and Cameras - sticpl.cpl
88. Scheduled Tasks - control schedtasks
89. Security Center - wscui.cpl
90. Services - services.msc
91. Shared Folders - fsmgmt.msc
92. Shuts Down Windows - shutdown
93. Sounds and Audio - mmsys.cpl
94. Spider Solitare Card Game - spider
95. SQL Client Configuration - cliconfg
96. System Configuration Editor - sysedit
97. System Configuration Utility - msconfig
98. System Information - msinfo32
99. System Properties - sysdm.cpl
100. Task Manager - taskmgr
101. TCP Tester - tcptest
102. Telnet Client - telnet
103. User Account Management - nusrmgr.cpl
104. Utility Manager - utilman
105. Windows Address Book - wab
106. Windows Address Book Import Utility - wabmig
107. Windows Explorer - explorer
108. Windows Firewall - firewall.cpl
109. Windows Magnifier - magnify
110. Windows Management Infrastructure - wmimgmt.msc
111. Windows Media Player - wmplayer
112. Windows Messenger - msmsgs
113. Windows System Security Tool - syskey
114. Windows Update Launches - wupdmgr
115. Windows Version - winver
116. Windows XP Tour Wizard - tourstart
117. Wordpad - write

Share the Info ! 

What is 3G and 4G ?

3G in Pakistan:

3G is the third generation mobile communication technology , refers to support high-speed data transmission cellular mobile communications technology. 3G services can simultaneously transmit voice and data information, third generation mobile phones generally speaking, is the next generation mobile communication system, such as wireless communications and multimedia communications with the Internet . It can handle multiple forms of media images, music, video streaming and other services including web browsing, conference calls, e-commerce and other information services.  3G refers to wireless communications and international Internet and other next-generation mobile communication systems combining multimedia communications, currently there are three 3G standards: CDMA2000 , WCDMA , TD-SCDMA .
3G peak theoretical downlink speeds of up to 3.6Mbit / s (one that 2.8Mbit / s), but also the peak uplink speeds of up to 384kbit / s. Not like the Internet, said the 2G per second, of course, it is impossible to instantly download a movie is completed.

4G in Pakistan:

The fourth-generation mobile communication standard mobile phone, referring to the fourth generation of mobile communication technology , foreign language abbreviations : 4G. The techniques include TD-LTE and FDD-LTE two formats (strictly speaking, 4G is only 3.5G, LTE despite being advertised as 4G wireless standards, but it actually has not been 3GPP recognized as the International Telecommunication Union as described in the next generation wireless communication standard IMT-Advanced, and therefore in the strict sense has not yet reached its 4G standard. upgraded version of the LTE Advanced is only just meet the ITU requirements for 4G). 4G is a 3G and WLAN in one, and quickly transfer data, high quality audio, video and images. 4G can download speeds of more than 100Mbps, faster than current home broadband ADSL (4 megabytes) 20 times, and be able to meet almost all users for wireless service requirements. In addition, 4G can be DSL and cable modems are not covered by local deployment, and then extended to the entire region.Obviously, 4G has incomparable superiority.

4G support these phones: Samsung Note2, N7108D, Sony M35t, ZTE U9815, Cool 8736, HTC 8088, Huawei G716, Amagatarai Touch 1, Hisense X6t so on.

Table compares 4G and 3G systems
Feature	4G	3G
Service Features	Integration of data and voice, multimedia	Priority to voice
Internet access	Multiple heterogeneous access	Single access
Frequency Range	2-8GHz, 800MHz	1.6-2.5GHz
Rate	20-100Mbit / s	385kbit/s-2Mbit/s
Bandwidth	100 + MHz	5-20MHz
Access	OFDM	WCDMA/ TD/CDMA2000 /WiMAX
Exchange	Packet switching	Packet switching / circuit-switched
IP Performance	IPv6	Multiple versions

Advantages and Defects:

Advantages:

1: The communication speed

As people study the initial purpose is to improve communication 4G cellular phones and other mobile devices speed wireless access to the Internet, and therefore the most impressive 4G communication characteristics than it has faster wireless communication speed.

For comparison from the mobile communication system data rate, only the first generation analog voice services; second generation digital mobile communication system transmission rate is only 9.6Kbps, up to 32Kbps, such as PHS; Third Generation Mobile Communication System Data transfer rate up to 2Mbps; while the fourth generation mobile communication system transmission rate up to 20Mbps, the highest you can even reach up to 100Mbps, this rate will be equivalent to about 2009 new cell phone transmission speed of a million times, the third-generation mobile phone transmission 50 times the speed.

2: Network wide spectrum

To make the 4G communication reach 100Mbps transmission, communications operators must be based on 3G communication networks, and research carried out substantial reform in order to make the 4G network communication bandwidth higher than the bandwidth of 3G networks in many cellular systems. According to the research of AT & T 4G communications executives say is estimated that each channel will occupy 100MHz 4G spectrum, the equivalent of W-CDMA 3G network 20 times.

3: Communication flexible

From the strict sense, 4G mobile phone features, they are not simply classified as "phone" category, after all, just a function of the transmission of voice data, one 4G mobile phone only, and therefore the future of 4G phones should be regarded as a small computer from the appearance and style , there will be even more amazing breakthrough, it is conceivable that, eyewear, watches, cosmetic, shoes, and personality in order to facilitate the premise that any one can see the items 4G terminals are likely to be, but people still do not know how should I call it.

Future 4G communication so that people can not only communicate anytime, anywhere, but you can download a two-way transmission of information, pictures, video, of course, can and never met a stranger online-line rally game. Perhaps there was never locked positioning system online nowhere to hide distress, but with the map it accordingly provides the convenience and security compared to, this is simply negligible.

4: Intelligent performance

The higher intelligence of the fourth generation mobile communications, not only in the 4G communication terminal apparatus with intelligent design and operation, such as the scroll operation and the menu will greatly reduce reliance more important 4G phone can imagine many function.

For example 4G phone can remind According to environmental factors, time and other settings in a timely manner at which point the phone's owner do, or should not be doing, 4G mobile phone cinema box office data can be downloaded directly onto PDA, These data can be the ticket, the seats in circumstances indicate that very clear, we can use this information to their own satisfaction with online purchasing movie tickets; 4G phones can be seen as a portable TV, with a view of the game of sports category various live.

5: Compatibility

For 4G communication as soon as possible to be accepted, it features not only a strong consideration, but also should take into account the existing communications, in order to allow more existing users will be able to communicate easily in transition with minimal investment to 4G communications.

Therefore, from this perspective, the future of fourth generation mobile communication system should have global roaming, open interfaces, talk to a variety of networking, terminal diversification and a smooth transition from the second generation features.

6: To provide value-added services

4G communication is not from the foundation of the 3G communications through a simple upgrade of evolution, their core construction technology is simply different, 3G CDMA mobile communication system is mainly based on the core technology, and 4G mobile communication system technology as a positive deposit multitasking frequency technology (OFDM) most attention, it may be implemented using such technology such as a wireless local loop (WLL), Digital Audio Broadcasting (DAB), etc. The wireless communication value-added services; but considering the 3G communication transitional, the fourth generation mobile communication system using OFDM is not only just a technology in the future, CDMA technology in the fourth generation mobile communication systems, and OFDM technologies complement each other in order to play a greater role, and even the future first Fourth generation mobile communication systems will have a new integration technologies such as OFDM / CDMA generation, digital audio broadcasting previously mentioned, in fact, it really is the use of technology OFDM / FDMA integration technology, the same technology is the use of a combination of the two.

So the next OFDM as the core technology in the fourth generation mobile communication systems will combine the advantages of both technologies, part of the extension will be based on CDMA technology.

7: High quality communications

Although the third generation mobile communication system can achieve a variety of multimedia communications, for the future fourth-generation mobile communication systems are also referred to as "multimedia mobile communications.

Not only to the fourth generation mobile communication applications due to the increase in the number of households, more importantly, it must be transmitted in response to the demand for multimedia, of course, required communication quality. In conclusion, we must be able to accommodate a large number of users market, improve the poor quality of existing communication and achieve high-speed data transmission requirements.

8: High frequency efficiency

Compared to the third generation mobile communication technology , the fourth generation of mobile communication technology use and the introduction of many powerful breakthrough technology in the development of the process, such as some fiber optic communications products company in order to further enhance the width of the wireless Internet backbone bandwidth, the introduction of the level switching technology, which can also cover the different types of communication interfaces , i.e. mainly the use of fourth generation Routing based network architecture.

As the use of several different technologies, so much more effective use of the radio frequency than the second generation and third generation systems.

Estimated according to the most optimistic scenario, the effectiveness of allowing more people to use the same amount of radio spectrum previously do more, and do these things very fast. The researchers say it is possible to achieve download speeds of 5Mbps to 10Mbps.

9: Cheap Cost 

As the 4G communication not only solved the problem of compatibility with 3G communication, so that more users can easily existing communication upgrade to 4G communications, and 4G communication introduces many cutting-edge communications technologies, which ensure that the 4G communication can provide a kind of flexibility is very high system mode of operation, so compared to other technologies, it is much easier to deploy 4G communications quickly; while building 4G communications network system , the communication operators who will consider direct communication infrastructure in 3G networks above, using the method introduced gradually, so that it is possible to effectively reduce the running cost and users.According to the researchers claim that 4G wireless instant communication connectivity fees for certain services will be cheaper than 3G communication.

For people, the future 4G communication does seem very mysterious, and many people think that the fourth generation of wireless communication network system is the most complex technical systems of mankind ever invented. Indeed, the fourth-generation wireless communications network a large number of vexing technical problems in the specific implementation, it probably does not make people feel unexpected and surprising. The fourth generation of wireless communications technology networks and the Internet about the existence of multiple, and it takes several years to resolve.

Defects:

1: Standard multi-

Although in theory, 3G mobile phone users worldwide mobile communications can be carried out, but because there is no uniform international standards, a variety of mobile communication systems are not compatible with each other, to mobile phone users inconvenience. Therefore, the development of fourth generation mobile communication system must first solve the communication system, such as the need for global standardization of unity, and the world's major communications companies would have been in this debate.

2: Technical difficulties

Although the future 4G communication can bring a better tomorrow, has come up, but not universal.According to the research of this technology developers, in order to achieve download speeds of 4G communications also faces a series of technical problems.

For example, how to ensure that floor area, mountains, and other obstacles, such as signal strength in the affected areas vulnerable to such issues. Japan's DoCoMo, said that in order to solve this problem, the company would different coding techniques and transmission technology to be tested. Another technical problem in terms of the existence of the transfer, the phone is easy when it enters the coverage area of another base station from the coverage area of a base station and the network lost contact.

Since the fourth-generation wireless communication network structure is rather complex, this problem is especially pronounced. However, industry experts say they believe that this problem can be solved, but it will take some time.

3: The capacity is limited

People on the future of 4G communications deepest impression than its communication transmission speed will be greatly improved, said its so-called broadband speeds of 100Mbps per second (approximately sec 12.5MB) Theoretically, in 2009 than the latest mobile phones Information 10KB per second transfer rate 1,000 times faster, but the phone's speed will be limited capacity of the communication system, such as system capacity is limited, mobile phone users, the more slowly. According to expert analysis, 4G phones will be difficult to reach its theoretical speed. If you do not increase the speed, 4G mobile phone is being reduced.

4: The market is difficult to digest

Some experts predict that in 10 years, the third generation of mobile multimedia services will communicate to enter the third stage of development, when global coverage of 3G network has been basically completed, more than 25% of the world's population uses the third generation mobile communication systems, third generation technology is still slow to enter the market, by which time the industry is the third generation of technology digestion and absorption, for accepting the fourth generation mobile communication system also requires a process of gradual transition.

In addition, during the transition, if the 4G communication systems because of shortages caused by the delay or the terminal, then known as 5G technology at any time may threaten the profitability of 4G plans at this time 4G long and profitable investment recovery plan will become Abnormal fragile.

5: Facilities Update slow

Before deploying 4G communications network systems, covering most of the world's wireless infrastructure is based on the third generation mobile communication system established, the fourth generation of communications technology if you want to transfer, then many of the world's wireless infrastructure needs experiencing a lot of changes and updates, this is bound to change and update a comprehensive mitigation 4G communication technology into the marketplace speed.

And then, also must require 3G communication terminal can be upgraded to higher speed data transmission and communication to support the 4G terminal 4G data services, that 4G communication terminal to be able to provide timely 4G communications network after completion, can not let production lags communication terminal network construction. But according to some of the facts, the 4G communication technology entered the date of counting of the commercial in 2023, consumers are expected to spend only stable performance of the 4G mobile phone communication.

Other

Because the more powerful phones, and wireless communications networks are becoming increasingly complex, the same communication capabilities increasingly 4G, while its construction and development than the previous system construction will encounter more difficulties and troubles .

For example each new equipment and technology introduced, followed by software design and development must be able to keep pace with timely, in order to make new equipment and technology has been rapidly promoted and applied, but unfortunately still only in the research 4G communication and development stage, specific equipment and techniques used yet fully formed, and therefore the corresponding software developers will encounter difficulties; addition rates and billing is particularly important for the development of 4G mobile data communications market, such as WAP phones After the launch, users spend a lot of time to get connected to information, and the time and charges by way of content so that the user unbearable, so you must carefully study the early fee-based 4G communication systems, in order to facilitate market development.

Software Engineering

Computer software plays an extremely important role in modern social and economic life, is playing an increasingly important role in various fields. The graduate students have a huge job market has broad prospects for employment.

Main courses

Object-oriented programming, software engineering and project management, software testing, .NET / Java Web application development, .NET / Java enterprise development, 3G mobile phone software development, computer networks and communications, network operating systems , multimedia technologies and applications , Large database processing techniques.

Major Courses: Software Engineering, C # programming, java programming, database technology and applications , computer English , JSP, ASP and other courses, as well as mathematics , English and other public programs.

Strictly speaking, computer science and software engineering are two completely different professions, the contents of the computer professional learning quite broad, including knowledge of computer hardware, such as digital logic, micro controllers and other subjects; computer software knowledge, such as system software, application software, etc.; and computer programming, like c, java, c#, etc. In short, broad knowledge of computer science professionals on other side, software engineering is a branch of computer science, but in-depth knowledge of the specific area, Logical thinking ability.

(1) certain logical thinking ability, mathematics, where mathematics is good does not mean you are necessarily good logical thinking, is the need to test your logical thinking ability through the difficulty of different questions! 

(2) proficiency in English can remember commonly used English words, will use basic grammar, because of the need to knock the code, so you must have a basis in English 

(3) have the ability to think independently to solve problems, and the courage to try . In your learning process will have a positive desire to solve the problem school problems, so the problem will be solved! (4) The minimum academic qualification or at least high school graduates 

What is difference between Software Engineering and Computer Science?

i hope this picture will clear your concept...

Computer science major areas

Mathematical foundation
Mathematical Logic  • Set Theory  • Number Theory  • graph theory  • Type theory  • category theory  •Numerical Analysis  & Information Theory

Theory of Computation
Automatic machine  • computability theory  • computational complexity theory  • Quantum computing  •numerical methods

Algorithms and data structures
Algorithm Analysis  • Algorithm design  • Computational Geometry

Programming languages and compilers
Parser  • Interpreter  • programming paradigms ( procedural programming , object-oriented programming ,functional programming , logic programming , etc.)

Concurrent , parallel and distributed systems
Multiprocessor  • Grid  • Concurrency Control

Software Engineering
Requirements analysis  • Software Design  & Programming  • Formal Methods  • Software Testing  &Software Development Process

System Architecture
Computer System Architecture  • microprocessor architecture  • Operating Systems

Telecommunications and network
Routing  • Network topology  • Cryptography

Database
Database management system  • Relational Database  • SQL  • Transaction Processing  • Database Index  •Data Mining

Artificial Intelligence
Automated Reasoning  • Computational Linguistics  • Computer Vision  • Evolutionary Computation  •Expert System  • Machine Learning  • Natural Language Processing  • Robotics

Computer Graphics
Visualization  & Computer Animation  & Image Processing

Human-Computer Interaction
Computer Aided function  • User interface  • wearable computer  • pervasive computing  • Virtual Reality

Scientific Computing
Artificial Life  • Bioinformatics  • Cognitive Science  • Computational chemistry  •Computational Neuroscience  & Computational Physics  • Numerical Algorithms  • Symbolic Computing

Computer Science

Computer Science ( abbreviation CS )

is a systematic study of information and calculation of the theoretical basis and their use in a computer system how to achieve academic and practical application of technology. It is often described as for those who create, describe and transform information in the algorithm systematic research process. Computer Science contains a lot of branches in the field ; Some emphasize specific calculation results, such as computer graphics, while some is to explore computational problems in nature, such as computational complexity theory ; There are some areas to focus on how to achieve the calculation, such as programming language theory is the study of description of the calculation method, and the programming is an application-specific programming languages to solve specific computational problems, human-computer interaction is focused on how to make computers and computing becomes a useful, easy to use, as well as anytime, anywhere people use.
Sometimes be mistaken for public utilities (such as computer science is to solve computer problems IT ), or just with the experience in the use of computers, such as playing games, Internet or word processing. In fact, computer science concern, not only to understand the implementation of a similar nature games, browser software programs, but also to create new programs or improve existing programs through existing knowledge.

History of computer science:

The real history of computer is started in 19th century when first calculating machine was invented 

These calculating fixed numerical tasks machines, such as the abacus , have existed since ancient Greek times. Wilhelm Schickard in 1623 designed the world's first mechanical calculator, but did not complete its construction.  Blaise Pascal designed and built the world's first mechanical calculator can work in 1642 Pascaline . Ada Lovelace •  Charles Babbage in the Victorian era design difference engine . around 1900, drilling machines  come out. However, these machines are limited to only a single task is completed, or at best, a subset of all possible tasks.

To the 1940s, with the newer and more powerful computing machines were invented, the term "computer" began to be used to refer to those machines rather than their ancestors. The concept of the computer is becoming clearer, it is not just for math, the whole field of computer science has also extended to the computing research. 1950s to the early 1960s, computer science began to be established for different types of academic disciplines.  The world's first point by a computer science degree from Purdue University established in 1962.  With the advent of practical computer with many computing applications are gradually changing their own way research in different fields become.

Although initially a lot of people do not believe that computers could be in the field of scientific research, but the next 50 years is gradually being recognized by academia.  IBM is one of the participants in the computer science revolution that period. IBM 704 and the IBM 709 computer in the period after the exploration period, IBM (International Business Machines acronym) published widely used. "However, work is still using the IBM PC is a very frustrating thing if you make a mistake in a letter of instruction, the program will crash, and you have to start all over again." the late 1950s, computer science discipline is still in development stage, the problem at the time was a very common thing.

Over time, computer science and technology on the availability and effectiveness are significantly improved. Modern society has witnessed a major shift from merely used by computer professionals to be accepted by the majority of users. Initially, the computer is very expensive and slow speed.