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040			_aoapen _coapen
041	0		_aeng
042			_adc
080			_a004.7
100	1		_aFernandes, João M. _4auth
245	1	0	_aEssentials of computing systems - 2ª edição
260			_aBraga _c2022
506	0		_aOpen Access _2star _fUnrestricted online access
520			_aComputers were originally invented to solve all sort of mathematical problems. Nowadays, computers do much more than that and are present in all human activities. In fact, a computer is a fantastic machine capable of doing the most amazing tasks, if an appropriate program is provided. A computer system contains hardware and system software that work together to run software applications. Interestingly, the underlying concepts that support the construction of a computer are relatively stable. In fact, (almost) all computer systems have a similar organisation, i.e., their hardware and software components are arranged in hierarchical layers and perform similar functions. This book was written for programmers and software engineers who want to comprehend how the components of a computer work and how they affect the correctness and performance of their programs.
540			_aCreative Commons _fhttps://creativecommons.org/licenses/by-sa/4.0/ _2cc
546			_aEnglish
650		0	_aПрограммное обеспечение _91402
653			_aComputing systems
653			_aProgrammers
856	4	0	_awww.oapen.org _uhttps://doi.org/10.21814/uminho.ed.93 _70 _zDownload
856	4	0	_awww.oapen.org _uhttps://directory.doabooks.org/handle/20.500.12854/90377 _70 _zDescription
909			_c197 _dKhurliman Arzieva
942			_2udc _cEE
999			_c6361 _d6361