Dekker's algorithm is the first known correct solution to the mutual exclusion problem in concurrent programming. The solution is attributed to Dutch mathematician Th. J. Dekker by Edsger W. Dijkstra in an unpublished paper on sequential process descriptions and his manuscript on cooperating sequential processes.
The file structure that redefines its first record at a base of zero uses the term:
The file structure that redefines its first record at a base of zero uses the term relative organization. A relative record file contains records ordered by their relative key, a record number that represents the location of the record relative to where the file begins.
What is the name given to all the programs inside the computer with makes it usable?
System software is software that provides a platform for other software. Some examples can be operating systems, antivirus software, disc formatting software, computer language translators etc. These are commonly prepared by computer manufacturers. This software consists of programmes written in low-level languages that are used to interact with the hardware at a very basic level. System software serves as the interface between the hardware and the end users.
Semaphores are integer variables that are used to solve the critical section problem by using two atomic operations wait and signal that are used for process synchronization. The definitions of wait and signal are as follows. The wait operation decrements the value of its argument S, if it is positive.
The advantage(s) of incorporating the macro processor into pass 1 is(are):
More flexibility is available to the programmer in that he may use all the features of the assembler in conjunction with macros. Functions are combined and it is not necessary to create intermediate files as output from the macro-processor and input to the assembler.
In analyzing the compilation of PL/I program, the description "creation of more optimal matrix" is associated with
Machine independent optimization attempts to improve the intermediate code to get a better target code. The part of the code which is transformed here does not involve any absolute memory location or any CPU registers.
In memory systems, boundary registers track the beginning and ending of programs. Operating system keeps track of time and resources used by various tasks and users, this information can be used to track resource usage for a particular user or group of user.
Which of the following is true for machine language.
UNIX is an operating system which was first developed in the 1960s, and has been under constant development ever since. By operating system, we mean the suite of programs which make the computer work. It is a stable, multi-user, multi-tasking system for servers, desktops and laptops.