Showing posts with label computer. Show all posts
Showing posts with label computer. Show all posts
Friday, September 29, 2017
Trick To Lock Your Computer With Usb
Trick To Lock Your Computer With Usb
Security of laptops and notebooks have been evolving with new technologies like fingerprint readers,eye scanners,face recognition etc but what about the personal computers?
Using this trick you will be able to lock your computer with a Usb.The computer will work only when the Usb is plugged in.Once the Usb is removed keyboard and mouse will automatically get disabled and your screen will get dark.Moreover your computer will get automatically locked.To unlock the computer you will need to insert the Usb again.
This trick will work on on all versions of windows including both windows 32 bit and 64 bit
Here is the Trick to lock Your Computer With Usb Using Predator
- Download predator software by clicking here (2.3 mb)
- Predator will get launched automatically after completing installation if not you can run it fromStart/Programs/Predator
- Now Insert your Usb.You will get a message to define your new password.(This process will not format your pendrive and your pendrive data will not be affected by this at all)
- Click on Ok and Enter your your new password in next dialog box
- Check that the drive letter displayed under �USB key drive� actually matches your flash drive or choose the correct letter from the dropdown list
- Finally click on Create Key button and then on OK button
- After this the software will automatically exit.Now restart the program by clicking the icon on desktop.Predator will take few seconds for initialization.Once the icon in the taskbar turns green then your software has initialized itself.
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Thursday, September 28, 2017
Turn of Thumbnail Caching for Faster Computer Performance
Turn of Thumbnail Caching for Faster Computer Performance
Today I have developed an interesting computer tricks for you. By default, Windows creates additional files in your memory. When the computer is on, these additional files to make your computer slow.
If you have enough disk space or if you are interested in creating thumbnails for each folder, you can pull these unnecessary files from your computer following this computer tricks:
Thumbnail Shutdown cache / Removing Thumbs.db files
A thumbnail cache is used to store the thumbnail images to view thumbnails in Windows Explorer in Windows. Each time you go to a folder containing the images and movies, Windows creates a model with a Thumbs.db file. So you can see what the picture / movie. This speeds thumbnails for displaying images such how are you do not need smaller images to recalculate each time the user sees the folder. But every photo is taken in a folder of approximately 2 kb.
To disable this function, do the following:
1. Go to "Start -> Control Panel"
2. Double-click "Folder Options"
3. Click the "View" tab
4. Check the "Do not cache thumbnails (Windows XP) Alternatively, turn off the icon show previews of files "check box (in Windows 7)
5. Click Apply and then click OK
Clear thumbnail cache recovery in Windows
On Windows, the thumbnail cache db files can be found in the hidden system folder:
C: Users username AppData Local Microsoft Windows Explorer
If the thumbnails in Windows Explorer is damaged and does not display correctly, you may need to clear the cache of the image or thumbnail cache files has become too big and wants to free hard disk space. To do this, you can follow these steps:1. Open Disk Cleanup (Go to Run, type cleanmgr)2. Select thumbnail and then click OK.3. Click on the Delete Files button.4. Disk Cleanup now clear the thumbnail cache and close.
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Tuesday, September 19, 2017
Tweaks to Optimize Your Computer For Gaming
Tweaks to Optimize Your Computer For Gaming
@@Tweaks to Optimize Your Computer For Gaming@@
1-Regularly clean your cpu and its internal parts from dust which is generally settled in your most important computer parts such as cpu fans,heat sink,graphic card fan,ram etc..
if you don�t take care of it, it�ll slowly start to deteriorate your hardware..
2-Hard Drive Space:-Make sure you have good amount hard disk space in pc
if you dont have then upgrade your harddisk or remove unused applications...
3- Defragmenting-When using a hard drive, space is used wherever available. As such, some files are fragmented all over the disk. The defragment utility analyzes your hard drive, and attempts to consolidate those fragmented files, in an attempt to optimize your computer and speed up your system.
1-Regularly clean your cpu and its internal parts from dust which is generally settled in your most important computer parts such as cpu fans,heat sink,graphic card fan,ram etc..
if you don�t take care of it, it�ll slowly start to deteriorate your hardware..
2-Hard Drive Space:-Make sure you have good amount hard disk space in pc
if you dont have then upgrade your harddisk or remove unused applications...
3- Defragmenting-When using a hard drive, space is used wherever available. As such, some files are fragmented all over the disk. The defragment utility analyzes your hard drive, and attempts to consolidate those fragmented files, in an attempt to optimize your computer and speed up your system.
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Sunday, August 20, 2017
Ubuntu copy file from local computer to another computer
Ubuntu copy file from local computer to another computer
To copy a file (e.g. /var/app.jar) from the local computer to the "/tmp" folder of a remote computer (said root@192.168.2.2), run the following command:
> scp /var/app.jar root@192.168.2.2:/tmp
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Saturday, August 12, 2017
UGC NET June 2012 Computer science and applications Questions Paper I common paper
UGC NET June 2012 Computer science and applications Questions Paper I common paper
Dear Friends the following are the questions asked in paper I of 2012 UGC NETComputer science and appliations.
Paper � I (Question booklet code X) Common paper to all the UGC NET subjects.
[Right answers are in green color]
Paper � I (Question booklet code X) Common paper to all the UGC NET subjects.
[Right answers are in green color]
- Petrol price increased by 25% consumption decrease to not rise the expenditure
- 20 %
- how many regional NCTE are in india
- 4
- 6
- 8
- Indian institute of advanced study situated at?
- Dharmasala
- shimla
- AIR named for broadcasting which year?
- 1936
- 1946
- 1926
- 1956
- TRP rating abbreviated as
- Television rating point
- Total rating point
- Target rating point
- DAVP is abbreviated as?
- Directorate of advertising and visual publisity
- Indian video mode?
- PAL
- NCTE
- SECAM
- Which makes irritation in eyes
- sulfur dioxide
- PAN
- nitrous oxide
- Cloro floro carban emit by
- refrigerators
- which is not renewable energy
- fresh water
- clear air
- fertile soil
- heart and soul of indian constitution told by Dr. B.R. Ambedkar
- right to speech
- right to equality
- right to constitutional remedies
- ASCII abbreviated as
- American standard code for information interchange
- African standard code for information interchange
- Internet Explorer is a?
- Browser
- OS
- CompilerClick here for Paper II QuestionsAll ugc-net subject syllabus.Computerscience & applications syllabus download
download file now
Friday, August 11, 2017
Turn Off Your Computer with an E mail or Cell Phone
Turn Off Your Computer with an E mail or Cell Phone
Using this method, the user can turn off, restart, hibernate, etc. his computer, simply by sending an e-mail from your phone.
To do this, all you need is Microsoft Outlook which should come with Microsoft Office, which many people have. This must be the computer that you want to want to stop.
So, this is how you do this:
1. First, you need the batch file to perform the Shutdown, Hibernate etc. You can make it very easily.
2. Open the notebook and write like this ...
c:windowssystem32shutdown -s -f -t 00
and save it as shutdown.bat
3. Open Microsoft Outlook. Make sure you have set for your email. Now must make sure that Outlook checks your mailbox for every minute (1 minute for testing time can be increased if desired switch-off delayed). You can do this by going to Tools >> Options.
4. Then click the Mail Setup tab, and then click the Send/Receive button.
5. Make sure that the Schedule an automatic send/receive every........ box is checked and set the number of minutes to 1. Now you can close all of these dialog boxes.
6. Now go to Tools >> Rules and Alerts. Then click the Options button in the upper right and press the import rules button.
7. Now select the file shutdown.bat (which you have created before).
8. Now, when you send a message from the phone to email with the subject of shutdown or %smsshutdown%, your computer will turn off.
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Wednesday, August 9, 2017
UGC NET June 2012 Computer science and applications Questions Paper II
UGC NET June 2012 Computer science and applications Questions Paper II
Dear Friends the following are the questions asked in paper I of 2012 UGC NET Computer science and appliations.
Paper � II [Right answers are in green color]
- What is the protocol used by a diskless machine to get its ip address
- ARP
- RARP
- Two Database users try to access same record
- recordlock
- recordlock
- Key process areas of CMMI4 is also defined in
- CMMI3 2. CMMI5 3. CMMI2 4.
- All leaves at same level in this tree
- AVL tree 2. B-tree 3. B+-Tree 4.
- Color needed to draw all vertices of a planer grpah is
- 4 2. 5 3. 6 4.
- station is 2000 meter apart from hub what will be used?
- 100Base Tx
- 100Base Fx
- 100Base T1
- 100Base F1
- Data encryption/decryption occur in which layer?
- Data link layer
- host and router uses TCP/IP software which layers software not needed to include in router
- physical layer
- data layer
- network layer
- application layer
- Page fault % for frame size m=4 43214513421
- Which circuit switching delayed due to store in ram and send.
- Packet
- frequency
- time division
- which metric is not depend on progrming lanugage?
- Loc
- function count
- members of token
- Assume that, if quantum of time is increased in the round robin algorithm then,
- increase in turnaround time
- decrease in turnaround time
- turnaround time varies irrelevent
- The technology used in bluetooth is
- Frequency multiplex
- Time multiplex
- Frequency duplex
- Time duplex
- Mobile ips main responsibility is
- ip binding and registration
- functional methods
- minimize cohesion and maximize coupling
- maximize cohesion and minimize coupling
- maximize cohesion and maximize coupling
- minimize cohesion and minimize coupling
- Maximum bits needed to store a 3 digit decimal number
- 8
- 16
- 10
- 12
- what is the maximum value of signed integer can be stored in 2 byte
- 215-1
- 216-1
- 215
- 216
- output of printf(�%c�,100)
- prints ASCII value of 100
- which one of the following will only delete content but not structure.
- ERASE
- DELETE
- PAX
- ZAP
Click here for Paper I Questions
All ugc-net subject syllabus.
Computerscience & applications syllabus download
download file now
Tuesday, August 8, 2017
Troubleshoot Computer Power Supply
Troubleshoot Computer Power Supply
Let�s say your power supply just got bad automatically. You can�t fix it for sure, because you do not know anything about electronics. For every computer user who knows what it means by having to extract files from a computer that doesn�t came on, due to one reason or the other, it bits and i bet you it�s possible to go all miles just to get a solution to it.
The ugliest is when your power supply gets bunt just before you had to copy your data out of the PC. It�s frustrating and you need to find a solution to it immediately. I will not be tutoring you electrical repairs, but I will be helping you find a good and working power supply for your PC. Buying a power supply either from a friend is good same as buying from a friend. What should matter most is if it works, and how do you know if it�s working if there is no means or time to connect to a PC to check? I remember sometimes ago when I went to a computer store to buy a CD-ROM Drive, nobody cared to have it tested before I take it out, all they needed was me to choose the one I wanted and pay their money, and I had nothing to argue about. However, I was ignorant of the fact that the newly looking color of the Drive does not revile the ability and functionality of the Drive, just to pick my shocks when I had it connected to the owners PC and it didn�t even show up in My Computer, Damn.
I could not imagine such things would easily happen to newly bought Drives. This does not only apply to new powers, but also if you wish to troubleshoot the one you have which is not working anymore.
You can still decide to open your computer to check using the following procedures, to make sure the power is either responsible for the reason your computer is not coming on, or it could be somethng ells.
You can still decide to open your computer to check using the following procedures, to make sure the power is either responsible for the reason your computer is not coming on, or it could be somethng ells.
Same as buying a power supply for your PC. What do you do if no means to have it connected to a PC to check? It�s difficult as most think, but I am going to make it simple here and you will never be taken by the same kind of embarrassment I found myself in.
Carefully go through the following process and you will be able to determine if it works or not, if there is nobody to check or connect for confirmation.
1. Ask for a power cable or take one along when going to buy one.
2. Pick a power supply that best suite the one you need; power it ON using the power cable. You will never notice if the power is ON even after plugging to current, because power supplies do not have any power switches on them.
3. Use a wire or cable of same kind found in the power supply. It doesn�t really matter what wire used, but it should be a good current conductor, maybe soft metals too.
Follow these steps bellow and refer from the image.
a. On the main standard power plug, count from left to right 1 2 3 and in number 4 pin, insert the wire.
b. From the right, count 1 2 3 and the wire in pin 4.
At this time, the power should power on automatically once you insert the last wire in the fourth pin from the right.
If it powers on, then the power is functioning and you should be leaving with mind clear.
If the power does not power on automatically, then it�s not working and you shouldn�t fall for such a thing. A bad power supply will hardly came on anyway.
Hope it did work guys?
Caution:
Remember to change the power voltage switch to your region or country�s voltage range mostly 110 and 220. You might have to pay for what you will not be able to use if you are not careful enough annoying. The switch is somewhere behind the power supply, image two shows.
That works for ATX PS 100 percent sure.
Only for troubleshooting!
Good Luck, hope it did help you?
To the right are more related articles.
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