Shortcut commands for windows

One of my friends ask me if there are shortcut commands for windows. Yes Microsoft helps the windows users about the shortcut commands. If you want to know all about shortcut command for windows 8.1, please download here.

Cyberfox Web Browser

Cyberfox is one of the best browsers I've ever used. If you want,
please download here.

Alpha Zawgyi Keyboard

This is Zawgyi keyboard for windows XP, 7 and 8. It can be installed in both of 32bits and 64bits. If you want it, please download.

Recovering Hidden Folders

Sometimes, we face the problem that the files or folders in our computers or hard disk or memory sticks are disappeared or hidden. In this kind of case, we can use command prompt to recover those hidden files or folders. The following is the way to recover the hidden files or folders by command prompt in windows OS.

1. Press Window + R keys together
2. Type cmd in Run Box.
3. Lets say your memory stick is E: (may be D or F or G or something)
4. To check your device is in which partition, press Window + E together and put your memory stick in your computer. Then you will see your memory stick is allocated to which partition.
5. Type E:  or something ( it depends on your memory stick partition)
6. Type dir/a (you will see all hidden folders)
7. Type attrib -h -s -a -r  "Folder Name"

Basic IP Address Calculating

There are four octets in IPv4. Each octet has 8 bits. So, IPv4 is totally 32bits. IPv4 addresses are based on the binary and decimal. Binary is 0 to 1 and decimal is 0 to 9. When all bits are "1"

IPV4   ->   32 bits

                 1^st Octet       2^nd Octet      3^rd Octet      4^th Octet

                11111111  .  11111111  .  11111111  .  11111111

                     8 bits            8 bits           8 bits          8 bits

                      255    .         255    .       255      .      255

When all bits are "0"

               00000000  .   00000000   .  00000000   .   00000000

                      0       .           0       .         0         .        0

Sometimes, some bits are "0" and some bits are "1" in the same octet. For example, lets see the ip address 192.168.1.0.

(If we will calculate the Ip addresses, we better write down the following formula.)

  2⁷        2⁶         2⁵        2⁴         2³        2²      2¹     2⁰   

128      64       32      16        8        4       2      1

                                                                       

192.168.1.0   

128  64  32  16  8  4  2  1 . 128  64  32  16   8   4   2  1  . 128  64  32  16  8 4  2  1  .  0

 1   1    0    0   0  0  0  0   .  1    0    1    0   1   0   0  0  .   0     0    0    0   0  0  0 1 . 00000000

11000000.10101000. 00000001.00000000

Now, lets try to change the following binary to decimal !

01110000.11000000.00011001.0

0      1     1    1   0   0   0   0  .   1  1  0  0  0  0  0  0  .  0  0  0  1  1  0  0  1 . 00000000

128  64   32  16  8   4   2   1

               
            112                         .             192                 .              25             .       0

112.192.25.0