Sum of Product (SOP) Sum of Product abbreviated as SOP is a form of expression in Boolean algebra in which different product terms of inputs are being summed together. This product is not arithmetically multiply but it is Boolean logical AND and the Sum is Boolean logical OR. Minterm is product of Boolean variable either … Read more
What Is Amplitude Modulation (AM)? The first amplitude modulated signal was transmitted in 1901 by a Canadian engineer by the name Reginald Fessenden. He used a continuous spark transmission and placed a carbon microphone in the antenna lead. This transmission was very crude; signals were audible over a distance of a few hundred meters. The … Read more
PCM (Pulse-Code Modulation) Pulse code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals and each sample … Read more
Handoff A handoff refers to the process of transferring an active call or data session from one cell in a cellular network to another or from one channel in a cell to another. A well-implemented handoff is important for delivering uninterrupted service to a caller or data session user. Cellular networks are composed of cells, … Read more
A database server is the key to solving the problems of information management. In general, a server must reliably manage a large amount of data in a multi-user environment so that many users can concurrently access the same data. All this must be accomplished while delivering high performance. A database server must also prevent unauthorized … Read more
Bitmap Graphics The bitmap also referred to as raster graphics can be described as a raster image containing pixel data format. Each pixel is actually a very small square that is assigned a color and then arranged in a pattern to form the image. A bitmap image is a grid made of rows and columns … Read more
What Is A Compact Disk (CD)? A Compact Disc also referred to as CD are small flat round, optical storage plastic discs which store and retrieve computer data or music using light. CDs can store software programs to install onto your computer. They save files for backup or transfer to another computer as well as … Read more
Encoder In Digital Logic An Encoder is a combinational circuit that performs the reverse operation of Decoder. It has maximum of 2n input lines and ‘n’ output lines, hence it encodes the information from 2n inputs into an n-bit code. It will produce a binary code equivalent to the input, which is active high. Therefore, … Read more
What Is A Virtual Function? A virtual function is a member function within the base class that we redefine in a derived class. It is declared using the virtual keyword. When a class containing virtual function is inherited, the derived class redefines the virtual function to suit its own needs. Virtual function ensure that the … Read more
Engineering fits are generally used as part of geometric dimensioning and tolerancing when a part or assembly is designed. In engineering terms, the ‘’fit’’ is the clearance between two mating parts and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other … Read more