Blue ticks on WhatsApp: What they really mean

It is a situation many of us have been in. You send an important message on WhatsApp and then eagerly wait for a reply.

One little tick appears to your message. Then two. Then nothing. Your heart sinks.

The important message has been ignored - or has it?

Up until now many users incorrectly thought the double check indicated a message had been seen.

Actually it meant that a message had been received by the handset, not its human owner.

However, WhatsApp's official website has confirmed the messaging service has a new feature, so you'll know when someone has definitely read your message.

We introduce to you, the double blue tick!

If a group of people are chatting, the two blue ticks will appear when everyone in the group has read the message.

Two grey check marks will show up when everyone has received the message.

You can also find out the time a message was delivered and read by pressing the message with the double tick - then holding it for a couple of seconds, before selecting "info".

Other messaging services already have similar types of notifications to show when someone has seen a message, like Facebook.

In 2013, instant messaging apps like Apple's iMessenger, WeChat and Viber overtook the traditional SMS text message for the first time.

Research company Informer found almost 19 billion messages were sent on chat apps in 2012, compared to 17.6 million texts.

Newsbeat has contacted WhatsApp for an official response. But we're still waiting for the double blue tick.

Benefits of Using CSE (custom search engine)

Google offers making your own custom search engine with number of different best features. Suppose if you are using own make site search engine for your site or blog. They only able to show you result not so much accurately. So here are some features in CSE which are necessary for its acceptance and using them.

• You are able to design in different colors and size for your own search box.

• You can show results anywhere in different form.

• You can also use Instance suggestion service, Adsense for making money, Add specific sites for results, Show thumbnails and much more.

32-bit or 64-bit, What to choose and Why?

The tendency of a computer’s processor to deal with information on RAM (random access memory) depends upon 32 bit and 64 bit version of Windows. 64 bit version can handle more RAM and apps than 32 bit.
Let’s understand it in a simple way. 64 bit version can deal with physical memory (RAM) above 4 GB and up to 128GB (yes, it exists!) while 32-bit version ..
.
can address RAM up to 4 GB only. Therefore, if you have a 32 bit version of Windows installed on your computer then installing RAM above 4 GB doesn't make sense.
The ability to handle large memory makes the 64 bit version more efficient while dealing with processes. Hence, it increases the overall performance of your PC. So 64 bit is more powerful in a nutshell. Now lets check some more things related to these two technologies.

Advantages of 64 bit computer-
#The main advantage of using 64-bit version of Windows is that it offers better memory accessibility and management.
#Enhanced security features like Kernel patch Protection, support for hardware-backed data execution protection, mandatory driver signing, removal of support for 32-bit drivers and removal of the 16-bit subsystem available.
#Performance of those programs that are specially written for 64 bit operating system is great.

Disadvantages of 64 bit computer-
There is no specific disadvantage of using this version but there are some things you have to take care of before deciding to use it.
#You should check availability of device drivers because 32 bit device drivers do not work on 64 bit version.
#Most of the hardware devices are not compatible with 64-bit computer.
#Device drivers must be digitally signed by the developer.
#Some programs of 32 bit aren't compatible with 64 bit.

[How to Choose a correct version of Windows]

64 bit version-
#Selecting correct version of Windows depends upon your priority and need. If you want to take advantage of large memory (more than 4 GB) then you could go for 64-bit version. But do check for the 64-bit versions of various tools and programs you use everyday before making the switch.
?Most of new software and hardware are supported by 64-bit version. Check compatibility status of your software and devices.

32 bit version-
#32 bit versions are cheaper than 64 bit versions.
#If you are using old software and hardware then you could go with 32-bit version because it can support all your program and devices.

Note: Most programs designed for 32 bit version can support 64-bit version too (except some antivirus programs). But if a program is designed for 64 bit version then it won’t work on 32 bit version.

What are the things that you need to become a Professional Computer Expert?

1. Programming Knowledge:
#C/C++
#Web designing (HTML/CSS,Javascript,PHP,etc)
#Visual Basic
#VBscript,Batch file programming,Autohotkey script writing.
2. Basic Networking Knowledge:
#Understanding of various networking protocols (TCP/IP,HTTP,etc)
#Different forms of network encryption
#Understanding of packets.
3. Experience with UNIX / LINUX Operating Systems.
4. Ability to think like a Criminal


Collection of Important Programming Languages:

C Programming,
C++ Programming,
HTML Web Programming and Designing, Java Software Programming,
Javascript Web Programming + Designing,
PHP + SQL + SQLi Programming,
Visual Basic Software Programming,
Visual C++ Software Programming Eng.,
Windows Phone App Dev Programming Contents,
Python (Software programming),
Batch File Programming (MS-DOS),
Android Software Development (Apps),
Dot Net (.Net) Programming, Android

Pen Drive Error or Viruses

If your Pen Drive is infected with any of the following viruses:
* Autorun.inf
* new folder.exe
* Iexplorer.vbs
* Bha.vbs
* nfo.exe
* New_Folder.exe
* ravmon.exe
* RVHost.exe or any other files with extension.
Actually this viruses are hidden and can't be seen even after
you enable show hidden folders.
Following simple dos command will change the attributes of
these files ,there after you can remove it by pressing delete
key.

Follow these steps:
Step1.:Type cmd in Run
Step2.: Switch to the drive on which pen drive is connected
(like C:\> h: enter)
Step3.: type exactly as attrib -s -h *.* /s /d and hit enter
(don't forget spaces).
Now you can see hidden virus files and you can delete them

#Method
1. Shutdown your computer or laptop
2. Insert USB Memory Stick into your laptop or Computer
3. Turn on laptop and then immediately start pressing (F8) key then Advanced Boot Options screen will come up
4. Select Safe Mode with Command Prompt
5. After loading files if your USB Memory Stick drive letter is (G) for example then write as
6. C:\windows\system32>G: and press enter
7. G:\>format G: and press enter
8. If ask you (Y/N) then press (Y) and press enter
9. Now a full format will start which remove write protection from USB Memory Stick.
Note:
Before removing USB from your computer, Always remove it safely by going into to my computer then right click on USB and click eject.

Full Forms of Short forms related to computer.

* VIRUS - Vital Information Resource UnderSeized.
* 3G -3rd Generation.
* GSM - Global System for Mobile Communication.
* CDMA - Code Divison Multiple Access.
* UMTS - Universal MobileTelecommunication System.
* SIM - Subscriber Identity Module .
* AVI = Audio Video Interleave
* RTS = Real Time Streaming
* SIS = Symbian OS Installer File
* AMR = Adaptive Multi-Rate Codec
* JAD = Java Application Descriptor
* JAR = Java Archive
* JAD = Java Application Descriptor
* 3GPP = 3rd Generation Partnership Project
* 3GP = 3rd Generation Project
* MP3 = MPEG player lll
* MP4 = MPEG-4 video file
* AAC = Advanced Audio Coding
* GIF= Graphic Interchangeable Format
* JPEG = Joint Photographic Expert Group
* BMP = Bitmap
* SWF = Shock Wave Flash
* WMV = Windows Media Video
* WMA = Windows Media Audio
* WAV = Waveform Audio
* PNG = Portable Network Graphics
* DOC = Document (MicrosoftCorporation)
* PDF = Portable Document Format
* M3G = Mobile 3D Graphics
* M4A = MPEG-4 Audio File
* NTH = Nokia Theme (series 40)
* THM = Themes (Sony Ericsson)
* MMF = Synthetic Music Mobile Application File
* NRT = Nokia Ringtone
* XMF = Extensible Music File
* WBMP = Wireless Bitmap Image
* DVX = DivX Video
* HTML = Hyper Text Markup Language
* WML = Wireless Markup Language
* CD -Compact Disk.
* DVD - Digital Versatile Disk.
* CRT - Cathode Ray Tube.
* DAT - Digital Audio Tape.
* DOS - Disk Operating System.
* GUI -Graphical User Interface.
* HTTP - Hyper Text Transfer Protocol.
* IP - Internet Protocol.
* ISP - Internet Service Provider.
* TCP - Transmission Control Protocol.
* UPS - Uninterruptible Power Supply.
* HSDPA - High Speed Downlink PacketAccess.
* EDGE - Enhanced Data Rate for GSM[GlobalSystem for Mobile Communication] Evolution.
* VHF - Very High Frequency.
* UHF - Ultra High Frequency.
* GPRS - General PacketRadio Service.
* WAP - Wireless ApplicationProtocol.
* TCP - Transmission ControlProtocol .
* ARPANET - Advanced Research Project Agency Network.
* IBM - International Business Machines.
* HP - Hewlett Packard.
* AM/FM - Amplitude/ Frequency Modulation.
* WLAN - Wireless Local Area Network

Founders and Portals

Some Important Portals & their Founders -
1. Google— Larry Page & Sergey Brin
2. Facebook— Mark Zuckerberg
3. Yahoo— David Filo & Jerry Yang
4. Twitter— Jack Dorsey & Dick Costolo
5. Internet— Tim Berners Lee
6. Linkdin— Reid Hoffman, Allen Blue& Koonstantin Guericke
7. Email— Shiva Ayyadurai
8. Gtalk— Richard Wah kan
9. Whats up— Laurel Kirtz
10. Hotmail— Sabeer Bhatia
11. Orkut— Buyukkokten
12. Wikipedia— Jimmy Wales
13. You tube— Steve Chen, Chad Hurley & JawedKarim
14. Rediffmail— Ajit Balakrishnan
15. Nimbuzz— Martin Smink & Evert Jaap Lugt
16. Myspace— Chris Dewolfe & Tom Anderson
17. Ibibo— Ashish Kashyap
18. OLX— Alec Oxenford & Fabrice Grinda
19. Skype— Niklas Zennstrom,Janus Friis & Reid Hoffman
20. Opera— Jon Stephenson von Tetzchner & Geir lvarsoy
21. Mozilla Firefox— Dave Hyatt & Blake Ross
22. Blogger— Evan Willams