pseudo code is the code written when converting the algorithm/ flow chart to actual code.
So it is in between the compiled code and flow chart. It is something that is not compiled but can be on
a notepad.

The science of cryptography has existed in one form or another for centuries.
Cryptography is the art of encoding and decoding messages for transmission between two parties, while keeping the message secret from unwanted viewers. There are many common implementations of cryptography in use today such as the HTTPS protocol on the Internet. All forms of data encryption and cryptography require a key in some form or another for use in encoding and decoding data. There are even some modern methods of encryption that have been mathematically proven to be unbreakable if they are
implemented properly.The inherent problem with any form of cryptography is in the method of key distribution.To date, all forms of message encryption have possessed this major vulnerability. As such, it makes no difference whether a secret message is sent via homing pigeon, a radio transmission, a penciled message on a notepad, or whispering to another, there is no physical way to get a cryptographic key to another without running the risk of  the key being intercepted.To solve this dilemma, a radical solution has been proposed called quantum cryptography. This method essentially uses photon light particles to send a key to an intended recipient. The difference with this method of key distribution is that it implements quantum mechanic's uncertainty principle as a means to guarantee the privacy of a key during distribution. Practically, quantum cryptography has the ability to afford complete privacy during the entire broadcast of an encoded message.
In quantum computing, we use the concept of qubits, superposition and coherence. A normal bit can be in only two states - 0 and 1. But a qubit it can be in 0, 1, or in the superposition of 0 and 1.
Quantum computers, will be much much faster than traditional silicon based compuers

If you're getting a Page Not Found error then IIS is receiving the request and responding, so we don't need to troubleshoot that part of the problem. It's not a permissions issue, or you would be getting an Access Denied message or an authentication prompt. That leaves us with just a couple of things. First, if URLSCAN is installed, it could be denying access to the .ASP extensions. Otherwise, we have to believe that IIS simply cannot find the filename. The most common cause of this is having your system set up so that file extensions are not shown, which is the default. As an example, let's say that you create or rename a file in Notepad and save it as default.asp. However, the actual filename is default.asp.txt. When you ask for file default.asp, IIS is unable to find it. However, when you look at the file in Windows Explorer, it is displayed as default.asp. You can configure Windows XP and other Microsoft operating systems to show the file extensions by clearing the checkbox "Hide extensions for known file types" located at MyComputer, Tools, Folder Options, and the View tab.