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Q. Explain Frequency-division multiplexing?
Frequency-division multiplexing (FDM) is a technique for data transmission widely used in telephone, radio, and cable TV systems in which the transmission frequency spectrum (i.e., bandwidth) is divided into smaller bands known as subchannels.
Data transmission between two stations can be achieved in either simplex, half-duplex, or full-duplex mode. In a simplexmode,mainly used in radio and TV broadcasts, information travels only in one direction. Thismode is rarely used in data communications. In half-duplexmode, used by radio communications, information may travel in both directions, but only in one direction at a time. The transmitter becomes the receiver and vice versa. In a full-duplex mode, information may travel in both directions simultaneously. This mode, used in telephone systems, adopts two different carrier frequencies.
Q. Microcomputer - Controlled Breadmaking Machine? Figure shows a simplified schematic diagram of a microcomputer-controlled breadmaking machine. A microcomputer along with its
Q. Explain about Interrupt Procedure? The interrupt procedure uses request header to conclude the function requested by DOS. It also performs all functions for device driver. T
Explain FIFO Page replacement algorithm. FIFO policy: This policy only removes pages in the order they entered in the main memory. By using this policy we simply eliminate a
Display how the value ASCII "MIRIAM" is stored in memory in Big Endian format starting at location 100 hexadecimal. Suppose that each memory location kept two ASCII characters.
Define micro routine and microinstruction. A sequence of control words corresponding to the control sequence of a machine instruction represents the micro routine for that ins
Signaling - Universal Serial Bus: USB supports following signaling rates: o A low speed rate of 1.5 Mbit/s is defined by USB 1.0. This is so much similar to "full speed"
Objects, messages, class, inheritance and polymorphism are the major concepts of object orientation.
Instruction buffers For taking the complete advantage of pipelining pipelines must be filled continuously. So instruction fetch rate must be matched with pipeline consumption r
Program Level This is usually the dependability of the operating system, which runs processes simultaneously. Different programs are evidently independent of each other. So par
Shared executes most of the security features into OLAP. If multiple accesses are needed admin can make essential changes. The default security level for all OLAP products is read
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