T : Could an an expert car driver or a car race champion repair a car?
Certainly not. But if he faces some minor problem while driving he can attend to the fault and set it right.
For example if there is any loose connection in wire or if there is any deviation in bolt or nut he can correct it. Any driver will be having that level of knowledge in mechanism. But they cannot attend major faults.
Similarly an expert mechanic can take a test drive to check the car after servicing. But he cannot do any gimmicks or he may not enter into a car race and win the race like champions.
Of, course always there are some exceptions for anything and there may be few persons who may be experts in both driving / racing and in servicing.
Now if you compare our computers with this illustration, every software engineer should have at least some basic knowledge about hardware and every hardware engineer should have at least some basic knowledge about software.
S : Sir, Can’t a person become an expert in both the divisions?
T : Why not Kanna? If you have interest, hard work and time to learn and practice you can become an expert in both the divisions.
But now if you are seeking an urgent job opportunity, first you learn the basics of hardware and software, and you seek and right job and then you specialize in the division in which you are interested.
S : Sir, I feel I am getting a better picture of what I have to do.
Sir now I would like to know more technical things about computers. Could we continue our discussion in those lines.
T : Yes Kanna, Sure. We will proceed as you wish
S : Sir, In my school days I have studies something about Generations of Computers. Now I would like to know clearly what does generations of computers means and what is the significance o the computer generations?
T : Sure Kanna, I shall explain you that in details.
Actually this generations of computers is slightly a technical history of development of computers.
The computers what you see and use has not been invented in a single day by a single person.
I had traveled a lot of years and it has a contribution of lot of scientists and its evolution is a lengthy history. That’s what you would have studied in your school days.
To Be Continued...
Internet is an essential need of this age. It is act like our friend in many situations.Following are the uses of Internet.
1)Email
we can be sent to or received from anywhere in the world, in a matter of few minutes.
2)E-commerce
Through Internet we can shop for various products and pay through credit card, ask our bank to transfer money to the different accounts.
3) E-Chat
Now a days we can even make national and international telephone calls through the Internet. we can chat with persons anywhere in the world. We can make new friends through chat.
4) Central Repository of Data
The Internet is like a huge central warehouse of data that can be accessed and queried by people from all over the world.
5) Advertisement Billboard
We can launch our own site on the Internet or put up banner ads on other people's sites.
6) Distance Learning
Several distance learning courses are available on the Internet through which you can study and complete courses on different subjects.
7) Shareware Software
Internet is also great place for download shareware (free) software, games and utilities.
8) Wide Area Networks
Using the Internet, organizations can collect and compile information from their offices which located anywhere in the world.
Piriform is a very famous software company which produces simple and great freewares.At present there are four piriform products namely Ccleaner, Defraggler, Recuva and Speccy.I have used all the four in my system and these software's are simply amazing.The user interface is so simple in design that there will be no difficulty in understanding the working of the software.Also the work done is very effective and useful.You can download all the four software from their official website http://www.piriform.com or from the freeware site called filehippo.com.The link is given with each section.Now lets see each one in detail.
1.CCLEANER
This is one of the most useful freeware available.Using ccleaner you can delete all the unwanted offline and online data like history,cookies,Temporary Internet files etc..The list is so big that it covers almost everything of these types.You can clean all browser related temporary storage files, unwanted temporary system files, Windows explorer files, Application files like adobe files, unwanted multimedia files like that of flash player and many more just in a click of one button.Yes.Just by clicking ‘Run Cleaner’ all these files are removed within seconds.In case you need history files or any other feature you can un check it in the main window itself.In the latest version of ccleaner, there is an option called “Wipe Free Space”.If you check this option, the cleaning will take some time as some long process is being carried out.So it is better to keep it unchecked for normal use.A message telling the same will appear when you check this option.
Though cleaning is the main job of this software, you have some extra features too.In left side of the window there is an option called Registry.This is actually a simple registry cleaner.Whenever you uninstall any software, usually registry entry will not be erased.With help of this feature you can actually erase the unwanted registry entry with a click of button.In the registry option you can see a button called ‘Scan for issues’.When you click it, the software will search for unwanted registry entry and list it in the window.After it is complete, you can click on the button ‘Fix Selected issues’.In the window that appears click ‘Fix All selected issues’ and click OK.Now the entries will be erased in seconds.There are many uses of this feature.A clean registry ensures smooth functioning of the system.Also you can reuse some trial version of softwares if the entries are erased!.
The next feature is called Tools.In tools you can get 3 options, namely Uninstall, Startup and Restore.They do the actions indicated by their names.It is very easy to operate and set the preference using ccleaner when compared to the original windows software for the same.For example.You can get all the startup files in the Startup menu and you can simply disable or enable it with one click.Similarly with the case of other two options.Now the last button on the left panel is called Options.Its about the settings of the ccleaner itself and you can very well understand it by reading the options.In my opinion cclearner is a must have freeware.Also some features get added with every new version of the software.
You can download any version of ccleaner from this link ccleaner
2.DEFRAGGLER
Defraggler is a simple software designed for de-fragmentation.De-fragmentation is the process which help to make the memory of computer compact and in order and as a result the speed of the computer will increase.There is an inbuilt de-fragmentation software in windows but this one is much easy and effective.You just have to select the drive and click defrag.The software will easily do it.But remember, de-fragmentation is a time taking process and time depends on the memory fragmentation.So it is better to initiate de-fragmentation and switch off the monitor.
You can download any version of defraggler from this link defraggler
3.RECUVA
Recuva is a file recovery software.If you have accidentally deleted a file from your system and if it is lost from the recycling bin also, you can recover the lost file by using this software.In the window of recuva give the file name and the drive in which it was located during deletion.In case you don't remember the name, just select the drive.Click Scan.A list of deleted files will come.Look for your file.If the round in the side of file name is green, the chance for successful recovery is more.Check the box of your file and click Recover.Now you have to give the location for file recovery.It will be good if the new location is different from the drive it was deleted.The best option will be a portable drive or any other partition.The software works great if the file is of small size and if it is recovered early after deletion.
You can download any version of recuva from this link recuva
4.SPECCY
Speccy is a very simple software which gives a complete information about your system.From the operating system you use to the current temperature of the hard drive, all the basic information about your system is displayed.At present it is available in beta version.
You can download any version of speccy from this link speccy
So these four are very useful and simple software and must have for computers.You can give your comments after using these softwares.
Even though many photo sharing sites are available in internet, picasa web albums is the best one. A very simple way for uploading photos to picasa is explained below.
Things that are needed for uploading photos to Picasa:
- Picasa software
- Internet connection
- Gmail account
1. First download the Picasa software from the following link and install it in your system.
http://en.softonic.com/s/picasa-5 ( This is a one time installation only )
3. Select Import from option from File Menu.A window appears as given below.
4. Choose Folder option in the menu Import from
5. Select the folder you want to upload and click open button ( I have chosen the folder named 'Test Album' )
6. If you want to put all the photos, click 'Import All' button. Otherwise select the photos by holding CTRL key and click open button
7. Enter the title for the album in the box next to Folder Title and choose where to store this album in the box next to Import to
8. Click Import All button.Now the screen appears as given below pointing to the folder added
9. Right click the folder in picasa that needs to be uploaded ( Ex: Test Album ) and click the option 'Upload to picasa web albums'
10. For the first time when you are putting to picasa, follow this step.Click signup for web albums and provide the username and password of the gmail account for registering with picasa web album. ( This a one time process )
11. After signing up enter the username and password for your gmail account in the window and click signin button.Window appears as given below.
12. Choose the desired size for the photos from the option 'Size to upload'
13. Choose the visibility for your album. It is better to choose unlisted than public. Public means anybody can view your albums without invitation.
14. Click upload button. Now the following window appears.
15. After the uploading is completed, the following window appears
16. Click the option view online to see the photos online.
17. Click Share button and enter the email ids of the persons seperated by comma, to whom you wish to share the photos.
18. Finally click Send mail button
19.Once all the photos are uploaded and email invitations are sent, sign out from the web albums
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