How To Install Chrome OS - Complete Guide

and you might be asking, what is VMware?
Layman answer: Just like Virtual CD, its a virtual PC. and like you can insert cd images in virtual cd. you can install OS inside VMware. which means you can try mac while still being on windows.

so after downloading, install VMware. (normal click next etc.)

and extract .bz OS file using winrar

now fire up your virtual machine

and click new virtual machine

and click typical

then select I will install OS later and click next

after that choose linux ubuntu and then next

then name ur mahcine and spacify its location

after that give it some size. though it says 20 but it doesn't matters
we are gonna delete this anyway

now before finishing spacify ur hardware

Now this is imporant

go to network and unselect NAT and click bridge and opion below it as shown

i tried messing with resolution here.. though it didn;t work.
anyway i'll show u how to change later
so you can skip this step

here was something that i did.. though it didn't made any sense.
i was getting logging in error so i removed my CD-ROM and Floppy
and it worked..
so you might also wanna do same...
as shown below

ok alomst done
so click ok and finish

and you will notice new virtual pc is made..

no click its settings to load chrome

select that hard disk which we created earlier and remove it

click add
select new hard
and click next

click use existing hard.. and next

browse for your OS which u downloaded and select it and also convet it to new format
if it asks

click ok and go back
now we are good
make ur your hard size is 2.8GB (if not then u didn't loaded file properly)
and lets start this much awaited OS

Enter you login details (make a fake account just to be secure)

and bingo you are in

to full screen click here

and to access apps go here

and now to change resolution
press ALT+CTRL+T
and enter
/usr/bin/xrandr
this will show you the available resolutions
after that select one
/usr/bin/xrandr --size ABxYZ
and enter
exit
as shown below

---

so that was it...
here are some useful shortcuts:
http://dev.chromium.org/chromium-os/how-\74wbr\76tos-and-troubleshooti

ng/developer-faq#TO\74wbr\76C-Shortcut-Keys

---

FINAL TIPS
if it gives error during booting
make your your hard is at IDE 0:0
(go to machine setting>>harddisk >> advance)
if error still comes then go to ur virtual machine folder and image folder
and delete the .lck folders
e.g Chrome OS.vmx.lck

If it gives error then make sure you clicked bridge and not NAT
and also go to network connects and play around with these.
e.g i changed one to from 192.168.54.1 to 192.168.1.8
my pc also has same subnet (192.168.1.*)

hope it helps

THATS ALL

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Computers were designed to make our lives faster.  Modern day computers have so many facilities that many of us would not have been dreamt of fifteen to twenty years back. Modern day software packages give us the liberty of downloading data  into any formats of our choice thereby giving the option of sending huge files through email in a few seconds which years back had to be printed packed and couriered which was a colossal waste of time and energy because we never had a choice at that point of time in our lives.

There is always a flip side in every aspect of our lives and computers and in this regard computers are no exception. The flip side to computers comes in the form of its own advantages often misused by people especially in applications like winword and in emails.  Some flip sides are:-

Editing Facility:- Prior to advent of applications like Microsoft word letters used to be hand written by us or typed on a typewriter.  We were accustomed to finish letters handwritten or typed within fifteen minutes or a maximum of half an hour.  The handwritten letters had a draw back in the sense there were too many scratches and over writing.  Software applications in computers give us the facility to edit and therefore we have become greedy and tend to use this facility much more than what we need.  Any number of editions to the data we are not satisfied.  We not only waste our time in repeatedly editing the data, but also waste others time in getting the edited versions verified time and again.

Spell Check and Grammar:- Users are more concerned than ever before on getting the spellings right which was never a priority earlier.  Also the focus is too much on grammar than on completion of data or sending it before the stipulated time frame.

Beautification of Data:- Many people are more concerned with beautification of data as they waste lot of time in changing fonts.  the choice of fonts offered by most software makes users greedy craving for more thereby resulting in deviation of primary motive of typing out data to beautification of data.

Saving Facility:- One of the best facilities offered by software's is saving for we have the option to save what is already typed so that we can type the balance at a time convenient to us.  Because of this facility to do things in convenience in installments we never try to finish of typing out the entire data at one go.  The facility to save makes us lazy and this is one of the reasons why work gets pending in most organizations as clerks tend to take too many breaks in the midst of typing data like chatting over phone, taking lunch before completion of data and so on.

This article is not to blame facilities offered by computers but to point out how excessive choice corrupts us  and generates a desire in us to crave for more leading to lack of satisfaction.  When we have too many choices we get spoilt for options and  in the end we end up doing nothing.

I have already published an article named "Coding standards in C language".  Some concpets in C++ are same in C. So i have not repeated those here.

In this article  i have explained some guidelines especially for C++ .

1. File Structure

Rule 1 (Required)

Implementation files in C++ always have the file name extension ".cpp".

Rule 2 ( Required )

An include file should not contain more than one class definition.

2. Naming convention

Rule 3 ( Advisory )

Variables representing GUI components should be suffixed by the component type name. Eg. submitButton,  mainWindow etc.

Rule 4( Required )

All private member variables names should be preceded by an underscore

All MFC Class Wizard member variables names should be preceded by ”m_”

Local Variable ->    variableName

Private Variable ->    _variableName

MFC Class Wizard Variable ->    m_variableName

3. Control flow

Rule 5 ( Required )

Follow each non-empty case statement block in a switch statement with a break statement.

Rule 6 ( Required )

Do not alter a control variable in the body of a for ,do or while statement.

Rule 7 ( Required )

Do not use 'goto'.

Rule 8 ( Advisory )

For functions with non-void return type, ensure all paths have a return statement that contains an expression of the return type.

Rule 9( Required )

Avoid the use of continue.

Rule 10 ( Required )

The break statement shall not be used (except to terminate the cases of a switch statement).

Rule 11 ( Required )

A switch statement must always contain a default branch which handles unexpected cases.

Rule 12 ( Advisory  )

A switch expression should not represent a Boolean value.

Rule 13( Advisory  )

Only expressions concerned with loop control should appear within a for statement.

4.Classes

Rule 14 ( Required )

The public, protected, and private sections of a class are to be declared in that order

Rule  15 ( Required )

No member functions are to be defined within the class definition.

Rule  16 ( Required )

Class data members should be explicitly declared to be private by using the private keyword

Rule  17 ( Advisory )

Every class should have a constructor, a destructor and a copy constructor defined

Rule  18 ( Required )

Organize class member functions in the source code in the same order they are declared in the class interface

5.Functions

Rule 19 ( Required )

Always provide the return type of a function explicitly

Rule 20 ( Required )

Pass arguments of class types by reference or pointer.

Rule 21 ( Required )

Specify the name of each function parameter in both the function declaration and the function definition. Use the same names in the function declaration

and definition.

Rule 22 ( Advisory )

Use pass-by-reference in preference to pass by value or pass by pointer.

Rule 23 ( Required )

Functions shall always be declared at file scope.

Rule 24 ( Required )

Functions shall always have prototype declarations and the prototype shall be visible at both the function definition and call.

Rule 25 ( Required )

Identifiers shall either be given for all the parameters in a function prototype declaration,or for none.

Rule 26 ( Required )

Functions with no parameters shall be declared with parameter type void.

Rule 27( Advisory )

A function should have a single point of exit.

Rule 28( Advisory )

If a function returns error information, then that error information should be tested.

6.Variables and Constants

Rule 29( Required )

Initialize all objects at definition. Never use an object before it has been given a value.

Rule 30 ( Advisory )

If possible, always use initialization instead of assignment.

Rule 31 ( Required )

Constants are to be defined using const or enum; never using #define.

Rule 32 ( Advisory )

Use suffixes L, U, F,and UL for all constants of type 'long', 'unsigned int' ,’Float’and 'unsigned long'.

Rule 33 ( Required )

There shall be no unreachable code. Examples of unreachable code are given below:

• Code after a goto or return.
• Code in a switch body, before the first label.
• Code after an infinite loop (a loop with a constant controlling expression that  evaluates to true).
• Code after a function call of a function that is known not to return.
• Code after break in a switch clause.
• Code after an if statement that is always taken where the end of the dependent statement is unreachable.
• Code after an if statement where the ends of both dependent statements are unreachable.
• Code after a switch statement where the ends of all clauses are unreachable.

7. Memory Allocation

Rule 34 ( Required )

Do not use malloc, realloc or free.

Rule 35 ( Required )

If memory allocation is done for an Array using new operator. Be careful that you delete the whole array .

8. Thread Handling

Rule 36 ( Required )

If global variables can be accessed by more than one thread, code altering the global variable should be enclosed  using a synchronization mechanism

such as a mutex. Code accessing the variable should be enclosed with the same mechanism.

Rule 37 ( Required )

Always design a Thread Safe Class

Whenever threads are used proper synchronization should be done.Since one thread could be updating the contents of a structure while another thread is reading the contents of

the same structure. It is unknown what data the reading thread will receive: the old data, the newly written data, or possibly a mixture of both. To avoid accessing incorrect data

always use Critical Section (Lock and Unlock functions)

9. Synchronization

Rule 38 (Required)

It is important to release the locks in the same order they were acquired to avoid deadlock situations.

10. Optimization Techniques

Pass Class Parameters by Reference

Passing an object by value requires that the entire object be copied (copy ctor), whereas passing by reference does not invoke a copy constructor, For strings, passing

by reference is almost 30 times faster! For the bitmap class, it's thousands of times faster. Passing a complex object by reference is almost 40% faster than passing by

value. Only ints and smaller objects should be passed by value, because it's cheaper to copy them than to take the dereferencing hit within the function.

Postpone Variable Declaration as Long as Possible

For maximum efficiency, declare variables in the minimum scope necessary, and then only immediately before they're used.The only time where it may make sense to declare an

object outside of the scope where it's used is in the case of loops. An object declared at the top of a loop is constructed each time through the loop.If the object naturally changes

every time through the loop, declare it within the loop. If the object is constant throughout the loop, declare it outside the loop.

// Declare Outside (b is true half the time)

T x;

if (b)

x = t;

// Declare Inside (b is true half the time)

if (b)

T x = t;

Prefer Initialization over Assignment

Initializing an object invokes the object's copy constructor. Defining and then assigning an object invokes both the default constructor and then the assignment operator.

Reduce the number of parameters

Function calls with large number of parameters may be expensive due to large number of parameter pushes on stack on each call. For the same reason, avoid passing

complete structures as parameters.

Don't define a return value if not used

The called function does not "know" if the return value is being used. So, it will always pass the return value. This return value passing may be avoided by not defining

a return value which is not being used.