A structured approach to teaching operating systems principles using a high level concurrent programming language

In this era of technology, programming has become more significant than ever before. Python and C++ are both widely used programming languages. Python, the most popular programming language in today’s world, is a high-level object-oriented language whereas C++, the language behind most operating systems, is a low-level object-oriented language. In this paper, we present a comparative study of Python and C++. This paper discusses the introduction to these languages, their memory management techniques, and the reasons behind their program execution speed. Furthermore, we analyzed the execution time and memory used by multiple algorithms in both the languages with best, average, and worst cases. They are also compared with respect to the benefits and issues related to them. Results indicate that C++ is faster than Python in execution speed but Python serves as a better language for beginners due to its simplicity. Moreover, for the best results, the language should be selected according to the type of project.

Download Full-text

PERANGKAT LUNAK KOMPUTER

10.31219/osf.io/tjbfr ◽

2020 ◽

Author(s):

Cut Nabilah Damni

Keyword(s):

Programming Languages ◽

Programming Language ◽

Operating Systems ◽

Source Code ◽

Computer Software ◽

Computer Programs ◽

Application Systems ◽

Executable Programs

AbstrakSoftware komputer atau perangkat lunak komputer merupakan kumpulan instruksi (program atau prosedur) untuk dapat melaksanakan pekerjaan secara otomatis dengan cara mengolah atau memproses kumpulan intruksi (data) yang diberikan. (Yahfizham, 2019 : 19) Sebagian besar dari software komputer dibuat oleh (programmer) dengan menggunakan bahasa pemprograman. Orang yang membuat bahasa pemprograman menuliskan perintah dalam bahasa pemprograman seperti layaknya bahasa yang digunakan oleh orang pada umumnya dalam melakukan perbincangan. Perintah-perintah tersebut dinamakan (source code). Program komputer lainnya dinamakan (compiler) yang digunakan pada (source code) dan kemudian mengubah perintah tersebut kedalam bahasa yang dimengerti oleh komputer lalu hasilnya dinamakan program executable (EXE). Pada dasarnya, komputer selalu memiliki perangkat lunak komputer atau software yang terdiri dari sistem operasi, sistem aplikasi dan bahasa pemograman.AbstractComputer software or computer software is a collection of instructions (programs or procedures) to be able to carry out work automatically by processing or processing the collection of instructions (data) provided. (Yahfizham, 2019: 19) Most of the computer software is made by (programmers) using the programming language. People who make programming languages write commands in the programming language like the language used by people in general in conducting conversation. The commands are called (source code). Other computer programs called (compilers) are used in (source code) and then change the command into a language understood by the computer and the results are called executable programs (EXE). Basically, computers always have computer software or software consisting of operating systems, application systems and programming languages.

Download Full-text

Second Calculus of Binary Relations as a Concurrent Programming Language.

10.21236/ada329349 ◽

1997 ◽

Author(s):

Vaughan R. Pratt

Keyword(s):

Programming Language ◽

Concurrent Programming ◽

Binary Relations

Download Full-text

A Reflexive Approach to Teaching Writing: Enablements and Constraints in Primary School Classrooms

Written Communication ◽

10.1177/07410883211005558 ◽

2021 ◽

pp. 074108832110055

Author(s):

Mary Ryan ◽

Maryam Khosronejad ◽

Georgina Barton ◽

Lisa Kervin ◽

Debra Myhill

Keyword(s):

Time Management ◽

Deep Understanding ◽

Writing Pedagogy ◽

Teacher Talk ◽

Teaching Writing ◽

Writing Teachers ◽

Teacher Interview ◽

Approach To Teaching ◽

High Level ◽

Teaching Of Writing

Writing requires a high level of nuanced decision-making related to language, purpose, audience, and medium. Writing teachers thus need a deep understanding of language, process, and pedagogy, and of the interface between them. This article draws on reflexivity theory to interrogate the pedagogical priorities and perspectives of 19 writing teachers in primary classrooms across Australia. Data are composed of teacher interview transcripts and nuanced time analyses of classroom observation videos. Findings show that teachers experience both enabling and constraining conditions that emerge in different ways in different contexts. Enablements include high motivations to teach writing and a reflective and collaborative approach to practice. However, constraints were evident in areas of time management, dominance of teacher talk, teachers’ scope and confidence in their knowledge and practice, and a perceived lack of professional support for writing pedagogy. The article concludes with recommendations for a reflexive approach to managing these emergences in the teaching of writing.

Download Full-text

Causal-Consistent Replay Reversible Semantics for Message Passing Concurrent Programs

Fundamenta Informaticae ◽

10.3233/fi-2021-2005 ◽

2021 ◽

Vol 178 (3) ◽

pp. 229-266

Author(s):

Ivan Lanese ◽

Adrián Palacios ◽

Germán Vidal

Keyword(s):

Programming Language ◽

Message Passing ◽

Concurrent Programming ◽

Concurrent Systems ◽

Concurrent Programs ◽

Unified Framework ◽

Innovative Technique ◽

Dual Notion

Causal-consistent reversible debugging is an innovative technique for debugging concurrent systems. It allows one to go back in the execution focusing on the actions that most likely caused a visible misbehavior. When such an action is selected, the debugger undoes it, including all and only its consequences. This operation is called a causal-consistent rollback. In this way, the user can avoid being distracted by the actions of other, unrelated processes. In this work, we introduce its dual notion: causal-consistent replay. We allow the user to record an execution of a running program and, in contrast to traditional replay debuggers, to reproduce a visible misbehavior inside the debugger including all and only its causes. Furthermore, we present a unified framework that combines both causal-consistent replay and causal-consistent rollback. Although most of the ideas that we present are rather general, we focus on a popular functional and concurrent programming language based on message passing: Erlang.

Download Full-text