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How are devices represented in UNIX?
All devices are shown by files called special files that are located in /dev directory. Therefore, device files and other files are named and accessed in the similar way. A 'regular file' is just an ordinary data file in the disk. A 'block special file' determines a device with characteristics same to a disk (data transfer in terms of blocks). A 'character special file' shows a device with characteristics same to a keyboard (data transfer is by stream of bits in sequential order).
Design a 1-bit full adder: Verify your design Use the 1-bit full adder to build a 4-bit adder with Ci=0 Verify: 1 + 4, and 9 + 9 Sram design: Cell: p - 0.5/0.045;
Write 8086 initialisation routine required to program 8255 for mode 1 with Port A and Port B as output Ports and Port C as an input port. Indicate all the relevant signals.
Performance of caches: Amdahl's Law regarding overall speed up: Alternatively, CPU stall can be considered:
Determine the primary memory of the server The keys used for accessing the server are held at a secret location in the primary memory of the server. This area or location is hi
Explain at least one modulation technique used for high speed modems. FSK - Frequency Shift Keying: In such technique the frequency of the carrier signal is changed as per to
Explain the basic performance equation Ans: The basic performance equation is following T = N * S/ R T => It is processor time required to execute a program N => act
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Q. Explain about Cathode Ray Tubes? Cathode ray tube is the major technology on that televisions and monitors have been based. CRT is a partially evacuated glass tube which is
What is meant by common control? In several switching systems, the control subsystem may be an integral part of the switching network itself. This system is termed as direct co
What is USB USB (UNIVERSAL SERIAL BUS) is intended to connect peripheral devices like mouse, keyboards, modems and sound cards to microprocessor through a serial data path and
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