Error in EXE File

Causes: The Application's executable file contains errors that interfere with processing.
Solution: copy a new executable files from backup copies.

CD ROOM does not work How to Solve?

CD ROOM does not work

Potential cause:

1.Improper Jumper Setting.

2.Dirty lens of CD room drive.

3.Driver softer is not installed properly.

4.improper cable connection between hard disk & CD room .

5.Power cable connection is not properly.

7.CD Room drive is defective.

Potential Solution:

1.Set the jumper setting properly (See on the front panel of CD room casing.

2.Cline the CD room drive by head cleaner.

3.install the CD room drive softer.

4.connect power cable properly.

5.Change the other CD room drive.

CD is not reading properly

Potential cause:

1.CD may be scratched .

2.Lens of drive may be dirty.

3.Speed is CD room drive too low.

4.CD room drive may be defective.

Potential Solution:

1.Use new CD.

2.clean the CD room's lens.

3.Used high-speed drive such as 25x.

4.Change the fine CD drive.

HOW TO KEEP YOUR COMPUTER HEALTHY

Disk Cleanup

Disk cleanup helps free up space on your heard drive.Disk cleanup searches your drive,and then shows your temporary files, internet files, and unnecessary program files that you can safely delete. you can direct Disk cealnup to delete some or all of those files.

1.Click on start butten.

2.choose program.

3.choose accessories.

4.Choose system tools.

5.Choose Disk Cleanup and click on it.

Then Disk Cleanup dialog box appears.

Disk Defragmenter

Disk Defragmenter

Disk Defragmenter rearranges files, program,and unsed space on youp computer Hard diskso that programs run faster and files open move quickly. Disk Defragmenterdoes not affect anything that you see on the screen, such as files in my documents or shortcuts on the programs menu.

1.Click on strate botton.

2.Choose program.

3.choose Accwssories.

4.choose system tools.

5.click on Disk Defragmentation.

Then, the following dialog box appears.
6.Select the required drive (D: or c:).

7.Clickon Analyze/Defragmenter.

Cleaning Up Temporary Files/ Folders

Cleaning Up Temporary Files/Folder:

Lost of Temporary files and folder will be made during the computeroperation automatically.It will be good practice to clen up these files frequently. To do so,

1.click on start.

2.click on run.

3.Type %temp%in the open box.

4.click on ok.

5.select all temporary contents using ctrl+A key.

6.click on ok, if the confirmation asked for hidden files.

7.Press Delete key from the keyboard.

8.click on yes for the confirmation.

History Of Computer

The history of computer starts 4000 years ago. History of computer means the gradual change in the concept over a long period of time. Around fifth century, Hindu philosophers developed a new method of counting from 0 to 9. Counting the numbers from 0to 9can be performed with the help of fingers. The development of counting started from the development simple counting device called ABACUS.

Abacus:

It is the early counting and calculating device that was developed by the chines people.The ABACUS was first used for computations in 3000B.C.

Napier's bones:

in 1614 A.D Scottish mathematician john mapiaer discovered the concept of logarithms. in1617A.D he constructed a set of rods called Napier bones fording mathematical calculation easily.

Analytical Engine Computer:
It was also developed by Charles Babbage in 1830s. it consisted of the input unit for taking data and instructions mill for performance calculation memory (punched card) with a suitable out put device that was used in vivaing the final result. It was designed to calculate up to 20 decimal places. the same principle of analytical engine is used in the modern computer. So he is called as the father of modern computer using the principles of Charles Babbage about 100 year's later mark-i was developed by ha ward Aiken in 1937.

Universal Accounting Computer:

john mauchly and eckert founded their won in 1946 and began to work on the universal automatic computer (UNI VAC):general-purpose commercally computer in 1951. It was the first commercially used electronic computer in the world.

- In 1977 steve wozniak and Steve jobs establish the company apple computers .

-in 1984 apple introduces the Macintosh the first widely available computer with "user-friendly graphical interface using icons windows and a mouse device.

-In1989 Microsoft corporation introduces windows for IBM computers.