Engineering Concepts Tutorials

Engineering Concepts Tutorials for UML, Operations Research, Numerical Methods and many more.
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The Component Object Model (COM) is a softwarearchitecture that allows applications to be built frombinary software components. COM is the underlyingarchitecture that forms the foundation forhigher-level software services, like those provided byOLE. OLE services span various aspects of...
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If you have used a computer for more than five minutes, then you have heard the words bits and bytes. Both RAM and hard disk capacities are measured in bytes, as are file sizes when you examine them in a file viewer. You might hear an advertisement that says, "This computer has a 32-bit...
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In this article we will explore the two main choices of graphic format that can be used on the Web to represent simple graphics, schemas or logos: · GIF (stands for Graphics Interchange Format) was developed in the late 1980's and it is still widely used. · PNG (Portable Network Graphics) was...
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Using authoritative name service, DNS servers primarily advertise to the world the various records associated with the domain they serve. Because users prefer common names and networks prefer numbers, DNS servers handle the translation between what a user types in a browser—such as...
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TLS (Transport Layer Security), defined in RFC 2246, is a protocol for establishing a secure connection between a client and a server. TLS (Transport Layer Security) is capable of authenticating both the client and the server and creating a encrypted connection between the two. The TLS...
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Packet sniffing is listening (with software) to the raw network device for packets that interest you. When your software sees a packet that fits certain criteria, it logs it to a file. The most common criteria for an interesting packet is one that contains words like "login" or "password." ...
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Introduction Multithreading is a concept where a program is broken into two or more parts called threads and all these threads run in parallel. Multithreading can make programs more responsive and effective and it increases its performance too. For example, today web pages need to display...
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A set of processes is deadlocked if each process in the set is waiting for an event that can be caused by another process in the set. The events that we are mainly concerned with are resource acquisition and release. The resources may be physical resources (CPU, I/O devices, memory) or logical...
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