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A transistor is a linear semiconductor device that controls current with the application of a lower-power electrical signal. Transistors are usually categorized into two groups: bipolar and field-effect. A bipolar transistor is a commonly used for amplification. The device can amplify analog or digital signals. It can also switch DC or function as an oscillator. Physically, a bipolar … Read more
What Is MAC Address? MAC (Media Access Control) address is a unique identifier that is assigned to every internet-connected machine that allows it to be identified when connected to a specific network. The use of MAC is common in most IEEE 802 networking technologies, including Ethernet, Wi-Fi and Bluetooth. A MAC address consists of six … Read more
What Is Process? In operating system (OS), a process is the instance of a computer program that is being executed by one or many threads. For example, when we write a program in C or C++ and compile it, the compiler creates binary code. The original code and binary code are both programs, and therefore … Read more
In programming, data can be stored in data structures like graphs and trees. A tree is typically special form of graph i.e minimally connected graph and having only one path between any two vertices. In other words tree is a special case of graph having no loops, circuits and no-self loops. Graphs can have loops, … Read more
There are two popular types of architectures based on the instruction set. They are CISC (complex instruction set computing) and RISC (Reduced Instruction set computing). Let us discuss the underlying differences, advantages, disadvantages and similarities between these two architectures. What Is RISC (Reduced Instruction Set Computing)? RISC (reduced instruction set computer) is a computer that … Read more
PHP (Hypertext Preprocessor) is a general-purpose server scripting language and a powerful tool for making dynamic and interactive web pages. PHP is widely used, free and efficient alternative to competitors such as Microsoft’s ASP. PHP was originally created by Rasmus Lerdorf in 1994 and is now produced by the PHP group. PHP code may be … Read more
Polymorphism means ability to take more than one form. Polymorphism is considered as one of the important features of Object Oriented Programming. In C++ polymorphism is mainly categorized into two types, Compile time polymorphism (Static) or (Dynamic) Runtime polymorphism. In dynamic polymorphism, the response to a function is determined at the run-time whereas in static … Read more
What Is A Travelling Wave Tube? A travelling wave tube (TWT) is a specialized vacuum tube that is used in electronics to amplify radio frequency (RF) signals in the microwave range. The TWT belongs to a category of ‘’linear beam’’ tubes, such as the Klystron, in which the radio wave is amplified by absorbing power … Read more
PAN( Personal Area Network) PAN stands for Personal Area Network. It is sometimes referred to as Wireless personal Area Network (WPAN). It’s a network covering a very small area, typically a small room. It enables computer devices to communicate with other nearby computers and exchange information and data. Devices in one PAN network can establish … Read more
An image function f(x,y) must be digitized both spatially and in amplitude in order to become suitable for digital processing. Typically, a frame grabber or digitizer is used to sample and quantize the analogue video signal. Therefore, in order to create an image which is digital, we need to convert continuous data into digital form. … Read more