Monday, March 24, 2008

Order Specifications

I have a nokia retail outlet and have 5 sales man who go around taking orders in South Calcutta and i have to ensure that the order quantity is less than the inventory and the salesman should be aware of the status of the inventory. If the inventory is adequate , they would accept the offer or vice-versa

The master inventory would recieve the order and update the inventory left and the order application will take the orders from the customers. If the product is out of stock,it would be informed to the customer immediately and if it is available, the order would be carried out and would be updated in the order view database along with the name , address and quantity ordered by the customer

Sales Man - Enter Product , Quantity for sales
Check if Quantity for sales <= Inventory
If Quantity <= Inventory, Process Order or else decline order (out of stock)

If the prder is process we shall deduct it from the inventory

Order Management System - All Orders

Order Management System - Order

Order Management System - 2

Wednesday, March 5, 2008

Monday, February 25, 2008

First Compiler

……First Compiler

Definition of a compiler

A compiler is a special program that processes statements written in a particular programming language and turns them into machine language or "code" that a computer's processor uses. The approach taken to compiler design is affected by the complexity of the processing that needs to be done, the experience of person or persons designing it and the tools available.

The first compiler was written by Grace Hooper, in 1952 for the A-0 programming language. The A-0 system converted the specification into machine code that could be fed into the computer a second time to execute the program. The A-0 functioned more as a loader or linker than the modern notion of a compiler. A program was specified as a sequence of subroutines and arguments. The subroutines were identified by a numeric code and the arguments to the subroutines were written directly after each subroutine code.

Early compilers were written in assembly language. The first self compiling-capable of compiling its own source was created for Lisp by Hart and Levin in 1962. However, the C compiler, developed by Dennis Richie is considered as the complete compiler.