Why We Can't Create Con Folder in Windows?

A Reason behind Why We Can’t Create Specific Folders in Windows

Most of us are aware, we can't create a folder with name "Con" in windows and all most many of us don't know the reason. 

Well I tell you the reason and list of keywords which we can't use in windows to create folders or file.

Reason: 

We cannot create folder with con, aux, nul because these are reserved keywords used by DOS. So if we were allowed to create such folders than there will be an ambiguity, in where to write data when the data is supposed to; go to the specified devices.

Keywords and Their corresponding Functions:

Reserved Keywords	Function
CON	Keyboard and Display
PRN	System list device, usually a parallel port
AUX	Auxiliary Device, usually a serial port
NUL	Bit-Bucket Device
A:-Z:	Drive Letter
COM1	First Serial communications port
COM2	Second Serial communications port
COM3	Third Serial communications port
COM4	Fourth Serial communications port
LPT1	First Parallel printer port
LPT2	second Parallel printer port
LPT3	Third Parallel printer port

Save Facebook Posts to Read Later

So many times it happens that, some of your friends have shared some interesting news, event or something which you will not be in position to go through due to time constraint and you might need to bookmark them or save Facebook posts to read later, else you may forget or end up spending more time searching them on your friend’s wall.

Save Facebook Posts

• Identify the posts which you would like to save in your news feeds or from your Friend’s wall.
• Click on the arrow on top right corner of the post.
• Click on “Save for Later”,
• Yes,now it’s done. Like that you have save links, photos, places, music, books, movies, TV shows and Events ... ect.

View Saved Facebook posts

Once you follow procedure to Save posts, it will be stored in your “Saved Items” and ONLY YOU can view them.

• Go to your Facebook Home 
• Left column you will find “Saved” button (You will find this button only If you have Saved something).
• Click on “Saved” button and you will get all Saved Posts.

Now don't waste your time to spend searching your friends older post . If you like some posts but you don't have time to read. That time you do this. Make it Simple

Networking cables (LAN cable)

Networking cables are used to connect one network device to other network devices or to connect two or more computers to share printer, scanner etc. Different types of network cables like Coaxial cable, Optical fiber cable, Twisted Pair cable, Twisted Pair cables are used depending on the network's topology, protocol and size. The devices can be separated by a few meters (e.g. via Ethernet) or nearly unlimited distances (e.g. via the interconnections of the Internet).

Now a days we are all know LAN cables but we don't know that cable which category, how much speed and bandwidth support.ok don't worry about that for your reference i given all the details below.

Category	Speed	Bandwidth	Application
Cat 1		100 K Hz	Voice only (Telephone) No longer used
Cat 2	4 Mbps	1 MHz	Data (Local talk) No longer used
Cat 3	10 Mbps	16 MHz	Data (Ethernet) No longer used
Cat 4	20 Mbps	20 MHz	Data (Token ring) No longer used
Cat 5	100 Mbps	100 MHz	Data (Fast Ethernet)
Cat 5 E	1 G bps	100 MHz	Data (Gigabit Ethernet)
Cat 6	1 G bps	250 MHz	Broadband data (Gigabit Ethernet)
Cat 6 A	10 G bps	500 MHz	Broadband data (Gigabit Ethernet)
Cat 7	10 G bps	600  MHz	Broadband data (Gigabit Ethernet)
Cat 7 A	10 G bps	1000 MHz	Broadband data (Gigabit Ethernet)
Cat 8	40 G bps	2 GHz	Broadband data (Gigabit Ethernet)