An introduction to formal languages and automata

An Introduction to Formal Languages and Automata provides an excellent presentation of the material that is essential to an introductory theory of computation course. The text was designed to familiarize students with the foundations and principles of computer science and to strengthen the students' ability to carry out formal and rigorous mathematical argument. Employing a problem-solving approach, the text provides students insight into the course material by stressing intuitive motivation and illustration of ideas through straightforward explanations and solid mathematical proofs. By emphasizing a learning through problem solving, students learn the material primarily through problem-type illustrative examples that show the motivation behind the concepts, as well as their connection to the theorems and definitions

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GOOGLE GRAVITY

1. 1. Google gravity:- We all have read the Newton’s law of gravity.Does it also apply to google?To test it follow the instructions

• Go to google.com
• Type Google Gravity
• Click on I’m feeling Lucky

Now you will see the effect of gravity on google.The google icon will fall down automatically.You can even pickup and throw google icon anyware.

Google maps trick

Try this-->

1. Go to Google Maps.


2. Go to "Get Directions"....


3. Type Taiwan as the start location.


4. Type China as the end location.......


5. Read STEP no 23 of the directions. :)

Run Command Shortcuts

Accessibility Controls : access.cpl

Add Hardware Wizard : hdwwiz.cpl

Add/Remove Programs : appwiz.cpl

Administrative Tools : control admintools

Automatic Updates : wuaucpl.cpl

Bluetooth Transfer Wizard : fsquirt

Calculator : calc

Certificate Manager : certmgr.msc

Character Map : charmap

Check Disk Utility : chkdsk

Clipboard Viewer : clipbrd

Command Prompt : cmd

Component Services : dcomcnfg

Computer Management : compmgmt.msc

Date and Time Properties : timedate.cpl

DDE Shares : ddeshare

Device Manager : devmgmt.msc

Direct X Control Panel (If Installed)* : directx.cpl

Direct X Troubleshooter : dxdiag

Disk Cleanup Utility : cleanmgr

Disk Defragment : dfrg.msc

Disk Management : diskmgmt.msc

Disk Partition Manager : diskpart

Display Properties : control desktop

Display Properties : desk.cpl

Display Properties (w/Appearance Tab Preselected) : control color

Dr. Watson System Troubleshooting Utility : drwtsn32

Driver Verifier Utility : verifier

Event Viewer : eventvwr.msc

File Signature Verification Tool : sigverif

Findfast : findfast.cpl

Folders Properties : control folders

Fonts : control fonts

Fonts Folder : fonts

Free Cell Card Game : freecell

Game Controllers : joy.cpl

Group Policy Editor (XP Prof) : gpedit.msc

Hearts Card Game : mshearts

Iexpress Wizard : iexpress

Indexing Service : ciadv.msc

Internet Properties : inetcpl.cpl

IP Configuration (Display Connection Configuration) : ipconfig /all

IP Configuration (Display DNS Cache Contents) : ipconfig /displaydns

IP Configuration (Delete DNS Cache Contents) : ipconfig /flushdns



Installed program folder:installer


Temporary files folder:%temp%


Network connection: ncpa.cpl


Microsoft PAINT:mspaint


Registry Editor:regedit

Logon to Windows XP even if you have forgotton administrator password

Can't remember your Windows XP administrator password?

1. With your Windows XP CD in the cd-rom drive and boot your computer

2. Press any key when you read "Press any key to boot from cd" on the screen

3. The first screen will indicate that Setup is inspecting the system hardware and loading files

4. When you get to the Welcome screen, press ENTER to Setup Windows now

5. Press F8 to accept the Licensing Agreement

6. The next screen gives you the option to start a Repair process. Use the arrow keys to select your XP installation (if you only have one, it should already be selected) and press R to begin the Repair process

7. Setup will now check your disks and then start copying files which can take several minutes. Shortly after this stage you will be required to reboot

8. During the reboot do not press any key to boot from the CD again. Setup will resume automatically with the standard screen

10. Keep your eye on the lower left hand side of the screen. When you see the Installing Devices progress bar, press SHIFT + F10. A command console will now open up giving you a wide access to the system

11. At the prompt, type NUSRMGR.CPL and press Enter. You have gained graphical access to your User Accounts in the Control Panel

12. Now remove or change your password as you prefer. Once the Repair is done, you will be able to log on with your new password. Your programs and personalized settings should remain intact.