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The UNIX operating system for a multiprocessor system has a number of extra features as compared to normal UNIX operating system. Let's first consider the design objectives of multiprocessor UNIX. The original UNIX created by Dennis Ritchie and Brian Kernighan was created as general purpose, portable, time-sharing uniprocessor operating system.
The OS functions comprising virtual memory management, processor scheduling, I/O devices etc are applied with a huge amount of system software. Generally size of OS is larger than size of main memory. The part of OS which exist in main memory is known as kernel. For a multiprocessor OS is created on 3 models viz: Floating executive model, Master slave model, multithreaded kernel. These UNIX kernels are applied with monitors and locks semaphores.
What is Machine.config? Machine configuration file: The machine. config file contains settings that apply to the whole computer. The machine.config, which can be found in the
Q. Displays a format of floating-point number? A floating binary number +1010.001 in a 16-bit register is able to be represented in normalised form (presuming 6 bits for expone
Rational Testmanager is a complicated tool that can be used for automating performance tests on client/server systems. A client/server system have client applications accessing a d
When is a memory unit called as RAM? A memory unit is called as RAM if any location can be accessed for a read or writes operation in some fixed quantity of time that is indepe
Q. Explain about Hexadecimal Numbers system? Hexadecimal system has 16 digits that are represented as 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F. A number (F2) H is equivalent to
The Orbix Connect resource adapter is packaged as a standard J2EE Connector Architecture resource adapter archive (RAR) file, corbaconn.rar. The corbaconn.rar file having all the c
In applications where the required memory capacity cannot be satisfied by a single available memory IC chip, what should the designer do to meet this requirement? Ans: If th
What is IPC? What are the various schemes available? The term IPC (Inter-Process Communication) explains various ways by which different process running on some operating syste
illustration of Z80 instruction set Computer
An exchange uses a -40 V battery to drive subscriber lines. A resistance of 250 ohms is placed in series with the battery to protect it from short circuits. The subscribers are req
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