1. Computer software refers to programs that run on computers and includes system software like operating systems and utility programs, as well as application software for tasks like word processing.
2. Operating systems control the computer hardware and link users to applications, allowing functions like multitasking. Common operating systems include Windows and Linux.
3. There are different types of software like general purpose applications for many tasks, integrated packages that combine applications, and specialist or tailor-made software for specific needs.
The document defines and describes different types of software. It discusses systems software, which includes operating systems, utilities programs, device drivers, and language translators that help applications run. It also covers application software, dividing it into general purpose, specialized, customized, and custom-written categories. Finally, it provides examples of different operating systems like real-time, single-user single-task, single-user multi-tasking, and multi-user operating systems.
Problem Solving and Program Design in C_1.pdfjlu08167
This document provides an overview of different types of computer software:
- System software includes operating systems, language processors like compilers and interpreters, and device drivers. It acts as an interface between hardware and application software.
- Application software is specialized to perform specific tasks like word processing, spreadsheet calculations, database management, presentations, etc.
- Utility software assists system software and users by performing supportive tasks like antivirus scanning, backup, file management, etc.
This document discusses different types of software. It defines software as programs that enable users to perform tasks and operate computers. There are two main types of software: system software and application software. System software includes operating systems, device drivers, firmware and utilities, which help manage computer hardware and resources. Application software includes programs for specific tasks like word processing, databases, and multimedia. Common examples of each type are provided.
Computer software includes application software and system software. Application software helps users perform tasks like word processing, while system software like operating systems control hardware resources and enable applications to run. There are two types of application software - general purpose software designed for widespread use, and special purpose software customized for specific needs. System software includes operating systems, language translators, editors, utilities, and drivers that allow software and hardware to communicate.
This document discusses different types of software. It defines software and describes two main types: application software and system software. Application software helps users perform tasks while system software helps computers run. Some key application software types discussed include office, educational, financial, entertainment, and utility software. The document also covers operating systems, computer programs, software licenses, and compatibility.
This document provides information on different types of computer software:
- System software includes operating systems like Windows and Linux, as well as programming language translators, BIOS, and utility software. Application software is designed for specific tasks like word processing.
- Operating systems control hardware resources and provide a platform for running other software. Common interfaces are command line and graphical user interfaces.
- Other types of software discussed include freeware, open source, shareware, commercial, proprietary, semi-free, and public domain software.
This document discusses computer software and its types. It defines software as a collection of instructions that tell a computer how to work, in contrast to hardware which physically performs the work. There are two main types of software: system software and application software. System software includes operating systems, utility programs, and device drivers which interface between hardware and users and enable application programs. Application software solves specific problems and can be proprietary, off-the-shelf, or custom-built for a specific purpose. Examples are provided for each software type.
System software is a type of computer program that allows the hardware and application programs to work together. It includes the operating system, utility programs, and device drivers. The operating system acts as an interface between the hardware and application software. Utility programs help with system maintenance tasks. Device drivers control specific hardware components like sound cards and video cards. System software manages computer resources and allows application programs to run properly.
The document defines and describes different types of software. It discusses systems software, which includes operating systems, utilities programs, device drivers, and language translators that help applications run. It also covers application software, dividing it into general purpose, specialized, customized, and custom-written categories. Finally, it provides examples of different operating systems like real-time, single-user single-task, single-user multi-tasking, and multi-user operating systems.
Problem Solving and Program Design in C_1.pdfjlu08167
This document provides an overview of different types of computer software:
- System software includes operating systems, language processors like compilers and interpreters, and device drivers. It acts as an interface between hardware and application software.
- Application software is specialized to perform specific tasks like word processing, spreadsheet calculations, database management, presentations, etc.
- Utility software assists system software and users by performing supportive tasks like antivirus scanning, backup, file management, etc.
This document discusses different types of software. It defines software as programs that enable users to perform tasks and operate computers. There are two main types of software: system software and application software. System software includes operating systems, device drivers, firmware and utilities, which help manage computer hardware and resources. Application software includes programs for specific tasks like word processing, databases, and multimedia. Common examples of each type are provided.
Computer software includes application software and system software. Application software helps users perform tasks like word processing, while system software like operating systems control hardware resources and enable applications to run. There are two types of application software - general purpose software designed for widespread use, and special purpose software customized for specific needs. System software includes operating systems, language translators, editors, utilities, and drivers that allow software and hardware to communicate.
This document discusses different types of software. It defines software and describes two main types: application software and system software. Application software helps users perform tasks while system software helps computers run. Some key application software types discussed include office, educational, financial, entertainment, and utility software. The document also covers operating systems, computer programs, software licenses, and compatibility.
This document provides information on different types of computer software:
- System software includes operating systems like Windows and Linux, as well as programming language translators, BIOS, and utility software. Application software is designed for specific tasks like word processing.
- Operating systems control hardware resources and provide a platform for running other software. Common interfaces are command line and graphical user interfaces.
- Other types of software discussed include freeware, open source, shareware, commercial, proprietary, semi-free, and public domain software.
This document discusses computer software and its types. It defines software as a collection of instructions that tell a computer how to work, in contrast to hardware which physically performs the work. There are two main types of software: system software and application software. System software includes operating systems, utility programs, and device drivers which interface between hardware and users and enable application programs. Application software solves specific problems and can be proprietary, off-the-shelf, or custom-built for a specific purpose. Examples are provided for each software type.
System software is a type of computer program that allows the hardware and application programs to work together. It includes the operating system, utility programs, and device drivers. The operating system acts as an interface between the hardware and application software. Utility programs help with system maintenance tasks. Device drivers control specific hardware components like sound cards and video cards. System software manages computer resources and allows application programs to run properly.
The document discusses different types of software and operating systems. It begins by defining software and describing different categories such as application software, system software, programming software, and firmware. It then provides examples of different types of application software and system software. Finally, it asks the recipient about their expectations for an operating systems application course.
This document provides an overview of computer software and its types. It discusses that there are two main types: system software and application software. System software includes operating systems, utility software, and device drivers, which run the computer hardware and enable application programs to execute. Application software is designed to help users perform specific tasks like word processing, spreadsheet creation, or photo editing. Application software can be custom-built for a specific user or purpose, or pre-packaged for general use.
This document defines and describes different types of software. It begins by explaining system software, which allows hardware and software interaction and includes operating systems, drivers, firmware and utilities. It also discusses application software for specific tasks, and types like word processors, databases, multimedia, and web browsers. The document concludes by defining proprietary software which is owned, and open source software where the source code is available.
Computer software is a set of machine-readable instructions that directs a computer processor to perform tasks. Software requires hardware to function and is intangible, stored in computer memory. It is created through programming languages and compiled into machine-readable code. There are two main types: system software that operates hardware and provides functionality, and application software for specific tasks like word processing. Software is licensed through proprietary licenses or open source licenses and comes in various models like per user or concurrent user.
This document defines and describes different types of computer software. It begins by defining software as a set of computer programs and procedures that enable computers to perform tasks.
It then outlines the two main categories of software: system software and application software. System software includes operating systems, utilities, and programs that allow computers to function, while application software performs specific tasks for users like word processing.
Common types of system software are described such as operating systems, language translators, communication software, and utility software. Examples are also provided of different operating systems, language translators like compilers and interpreters, and general purpose versus specific purpose application software.
1) Software provides instructions to computers to solve problems and perform tasks. There are two main types: system software and application software.
2) System software controls basic computer operations and hardware, including saving data, printing, and running other programs. Common examples are operating systems, utility programs, and device drivers.
3) Application software allows users to perform specific tasks like word processing, spreadsheets, databases, and graphics. There are customized applications designed for specific users and packaged software for general use.
A computer is an electronic device that processes data through both hardware and software. Hardware refers to physical components like the system unit, monitor, keyboard, and mouse. Software includes operating systems, applications, and utilities. Common applications include programs from Microsoft like Word, Excel, PowerPoint, Outlook, and Internet Explorer. Utilities help optimize, maintain, and secure the computer and include antivirus software, backup utilities, and file compression tools. The Internet is a global network connecting millions of computers through transmission protocols. It allows sharing of resources between servers that store information and clients that access it through browsers using URLs and HTML documents.
Detailed presentation on the topic of Classification of software. Submitted to EIILM Kolkata for the partial fulfillment of MBA Degree on 1st Semester.
system software and application softwareTallat Satti
Software is a general term for the various kinds of programs used to operate computers and related devices. (The term hardware describes the physical aspects of computers and related devices.)
Perform more specialized tasks (word processing, spreadsheets, email, photo editing, bookkeeping)
Installed onto your computer with disk or downloaded
Can be web based, with no need to download program onto computer
Hardware refers to the physical components of a computer system like the CPU, RAM, and hard drives. Software includes programs like operating systems, browsers, and apps that allow interaction with hardware. Firmware is a type of software designed to act as an intermediary between hardware and software or for single-purpose devices like printers. It is updated infrequently and users have limited interaction with it. Examples of firmware include the BIOS and EFI.
System software includes operating systems, utility programs, library programs, and translator programs. An operating system manages computer resources and provides services for applications. Utility programs help configure and maintain the computer. Library programs provide reusable code for common tasks. Translator programs such as assemblers, interpreters, and compilers convert source code into machine-readable machine code.
The document discusses different types of computer software. It defines software as a set of instructions that tell a computer how to perform tasks. It describes system software, such as operating systems and utilities, which provide a platform for other software to run. It also discusses application software, such as word processors and spreadsheets, which help users perform tasks. The document provides examples of different categories of software like proprietary, open-source, and free software. It explains key system software concepts like compilers, interpreters, boot processes, and device drivers.
This document provides an overview of different types of software, including system software and application software. It defines software and describes system software such as operating systems, device drivers, firmware, translators, and utility software. It also defines application software and describes types including commercial software, customized software, and freeware. Specific examples are provided for each type of software discussed.
This document defines and describes different types of computer software. It discusses system software, which operates hardware and provides a platform for applications. Programming software provides tools for programmers. Application software directly helps users perform tasks. Some examples of application software include office suites, graphics software, and media players. The document further categorizes application software into types like application suites, enterprise software, information worker software, and content access software.
This document provides an overview of software, including definitions and types of software. It discusses system software such as operating systems and their functions. It also covers application software, programming languages, and software development approaches like object-oriented programming. Specific software mentioned includes HTML, XML, Java, and UML.
This document provides an overview of different types of computer software. It defines software as a series of instructions that tells the computer what tasks to perform. It distinguishes between system software like operating systems and utility programs, which control and maintain computer operations, and application software, which helps users be more productive by creating documents and media. It also describes different categories of application software such as packaged, custom, web applications, open source, shareware, freeware, and public domain software.
SPOS_UNIT I System Programming and Operating System.pdfreshma96176
System programming involves developing software like operating systems, compilers, linkers, and device drivers. Key components of systems programming evolution include text editors, assemblers, macros, compilers, interpreters, loaders, linkers, debuggers, and device drivers. Assemblers translate assembly language into machine code. Macros allow frequently used code sequences to be defined once and reused.
This document provides information about a 3rd semester course titled "Fundamentals of IT". The course objectives are to teach basic computer concepts, how to use common software programs like Word, PowerPoint and Excel, and basic networking and internet concepts. The course outcomes are skills related to using computer hardware and software programs. The document then outlines the course content which will cover topics like operating systems, data transmission, computer networks and provides references. It includes a lecture plan that lists the topics to be covered in each class.
This document discusses different types of software. There are two main types: system software and application software. System software acts as an interface between hardware and users, providing a platform for other software. It includes operating systems, antivirus programs, and language translators. Application software is designed for end users and includes programs like word processors, spreadsheets, and web browsers that help with productivity. Both system and application software are necessary to operate computers and perform tasks.
This document discusses an introduction to computer software presented by Yusra Fernando at the Universitas Teknokrat Indonesia Faculty of Economics and Business. It defines software and hardware, and describes the major types of software including system software, application software, open source software, and proprietary software. It also discusses acquiring software, types of application software, and ethical issues related to software.
E-commerce Development Services- Hornet DynamicsHornet Dynamics
For any business hoping to succeed in the digital age, having a strong online presence is crucial. We offer Ecommerce Development Services that are customized according to your business requirements and client preferences, enabling you to create a dynamic, safe, and user-friendly online store.
The document discusses different types of software and operating systems. It begins by defining software and describing different categories such as application software, system software, programming software, and firmware. It then provides examples of different types of application software and system software. Finally, it asks the recipient about their expectations for an operating systems application course.
This document provides an overview of computer software and its types. It discusses that there are two main types: system software and application software. System software includes operating systems, utility software, and device drivers, which run the computer hardware and enable application programs to execute. Application software is designed to help users perform specific tasks like word processing, spreadsheet creation, or photo editing. Application software can be custom-built for a specific user or purpose, or pre-packaged for general use.
This document defines and describes different types of software. It begins by explaining system software, which allows hardware and software interaction and includes operating systems, drivers, firmware and utilities. It also discusses application software for specific tasks, and types like word processors, databases, multimedia, and web browsers. The document concludes by defining proprietary software which is owned, and open source software where the source code is available.
Computer software is a set of machine-readable instructions that directs a computer processor to perform tasks. Software requires hardware to function and is intangible, stored in computer memory. It is created through programming languages and compiled into machine-readable code. There are two main types: system software that operates hardware and provides functionality, and application software for specific tasks like word processing. Software is licensed through proprietary licenses or open source licenses and comes in various models like per user or concurrent user.
This document defines and describes different types of computer software. It begins by defining software as a set of computer programs and procedures that enable computers to perform tasks.
It then outlines the two main categories of software: system software and application software. System software includes operating systems, utilities, and programs that allow computers to function, while application software performs specific tasks for users like word processing.
Common types of system software are described such as operating systems, language translators, communication software, and utility software. Examples are also provided of different operating systems, language translators like compilers and interpreters, and general purpose versus specific purpose application software.
1) Software provides instructions to computers to solve problems and perform tasks. There are two main types: system software and application software.
2) System software controls basic computer operations and hardware, including saving data, printing, and running other programs. Common examples are operating systems, utility programs, and device drivers.
3) Application software allows users to perform specific tasks like word processing, spreadsheets, databases, and graphics. There are customized applications designed for specific users and packaged software for general use.
A computer is an electronic device that processes data through both hardware and software. Hardware refers to physical components like the system unit, monitor, keyboard, and mouse. Software includes operating systems, applications, and utilities. Common applications include programs from Microsoft like Word, Excel, PowerPoint, Outlook, and Internet Explorer. Utilities help optimize, maintain, and secure the computer and include antivirus software, backup utilities, and file compression tools. The Internet is a global network connecting millions of computers through transmission protocols. It allows sharing of resources between servers that store information and clients that access it through browsers using URLs and HTML documents.
Detailed presentation on the topic of Classification of software. Submitted to EIILM Kolkata for the partial fulfillment of MBA Degree on 1st Semester.
system software and application softwareTallat Satti
Software is a general term for the various kinds of programs used to operate computers and related devices. (The term hardware describes the physical aspects of computers and related devices.)
Perform more specialized tasks (word processing, spreadsheets, email, photo editing, bookkeeping)
Installed onto your computer with disk or downloaded
Can be web based, with no need to download program onto computer
Hardware refers to the physical components of a computer system like the CPU, RAM, and hard drives. Software includes programs like operating systems, browsers, and apps that allow interaction with hardware. Firmware is a type of software designed to act as an intermediary between hardware and software or for single-purpose devices like printers. It is updated infrequently and users have limited interaction with it. Examples of firmware include the BIOS and EFI.
System software includes operating systems, utility programs, library programs, and translator programs. An operating system manages computer resources and provides services for applications. Utility programs help configure and maintain the computer. Library programs provide reusable code for common tasks. Translator programs such as assemblers, interpreters, and compilers convert source code into machine-readable machine code.
The document discusses different types of computer software. It defines software as a set of instructions that tell a computer how to perform tasks. It describes system software, such as operating systems and utilities, which provide a platform for other software to run. It also discusses application software, such as word processors and spreadsheets, which help users perform tasks. The document provides examples of different categories of software like proprietary, open-source, and free software. It explains key system software concepts like compilers, interpreters, boot processes, and device drivers.
This document provides an overview of different types of software, including system software and application software. It defines software and describes system software such as operating systems, device drivers, firmware, translators, and utility software. It also defines application software and describes types including commercial software, customized software, and freeware. Specific examples are provided for each type of software discussed.
This document defines and describes different types of computer software. It discusses system software, which operates hardware and provides a platform for applications. Programming software provides tools for programmers. Application software directly helps users perform tasks. Some examples of application software include office suites, graphics software, and media players. The document further categorizes application software into types like application suites, enterprise software, information worker software, and content access software.
This document provides an overview of software, including definitions and types of software. It discusses system software such as operating systems and their functions. It also covers application software, programming languages, and software development approaches like object-oriented programming. Specific software mentioned includes HTML, XML, Java, and UML.
This document provides an overview of different types of computer software. It defines software as a series of instructions that tells the computer what tasks to perform. It distinguishes between system software like operating systems and utility programs, which control and maintain computer operations, and application software, which helps users be more productive by creating documents and media. It also describes different categories of application software such as packaged, custom, web applications, open source, shareware, freeware, and public domain software.
SPOS_UNIT I System Programming and Operating System.pdfreshma96176
System programming involves developing software like operating systems, compilers, linkers, and device drivers. Key components of systems programming evolution include text editors, assemblers, macros, compilers, interpreters, loaders, linkers, debuggers, and device drivers. Assemblers translate assembly language into machine code. Macros allow frequently used code sequences to be defined once and reused.
This document provides information about a 3rd semester course titled "Fundamentals of IT". The course objectives are to teach basic computer concepts, how to use common software programs like Word, PowerPoint and Excel, and basic networking and internet concepts. The course outcomes are skills related to using computer hardware and software programs. The document then outlines the course content which will cover topics like operating systems, data transmission, computer networks and provides references. It includes a lecture plan that lists the topics to be covered in each class.
This document discusses different types of software. There are two main types: system software and application software. System software acts as an interface between hardware and users, providing a platform for other software. It includes operating systems, antivirus programs, and language translators. Application software is designed for end users and includes programs like word processors, spreadsheets, and web browsers that help with productivity. Both system and application software are necessary to operate computers and perform tasks.
This document discusses an introduction to computer software presented by Yusra Fernando at the Universitas Teknokrat Indonesia Faculty of Economics and Business. It defines software and hardware, and describes the major types of software including system software, application software, open source software, and proprietary software. It also discusses acquiring software, types of application software, and ethical issues related to software.
E-commerce Development Services- Hornet DynamicsHornet Dynamics
For any business hoping to succeed in the digital age, having a strong online presence is crucial. We offer Ecommerce Development Services that are customized according to your business requirements and client preferences, enabling you to create a dynamic, safe, and user-friendly online store.
Mobile App Development Company In Noida | Drona InfotechDrona Infotech
Looking for a reliable mobile app development company in Noida? Look no further than Drona Infotech. We specialize in creating customized apps for your business needs.
Visit Us For : https://www.dronainfotech.com/mobile-application-development/
Utilocate offers a comprehensive solution for locate ticket management by automating and streamlining the entire process. By integrating with Geospatial Information Systems (GIS), it provides accurate mapping and visualization of utility locations, enhancing decision-making and reducing the risk of errors. The system's advanced data analytics tools help identify trends, predict potential issues, and optimize resource allocation, making the locate ticket management process smarter and more efficient. Additionally, automated ticket management ensures consistency and reduces human error, while real-time notifications keep all relevant personnel informed and ready to respond promptly.
The system's ability to streamline workflows and automate ticket routing significantly reduces the time taken to process each ticket, making the process faster and more efficient. Mobile access allows field technicians to update ticket information on the go, ensuring that the latest information is always available and accelerating the locate process. Overall, Utilocate not only enhances the efficiency and accuracy of locate ticket management but also improves safety by minimizing the risk of utility damage through precise and timely locates.
What is Augmented Reality Image Trackingpavan998932
Augmented Reality (AR) Image Tracking is a technology that enables AR applications to recognize and track images in the real world, overlaying digital content onto them. This enhances the user's interaction with their environment by providing additional information and interactive elements directly tied to physical images.
Atelier - Innover avec l’IA Générative et les graphes de connaissancesNeo4j
Atelier - Innover avec l’IA Générative et les graphes de connaissances
Allez au-delà du battage médiatique autour de l’IA et découvrez des techniques pratiques pour utiliser l’IA de manière responsable à travers les données de votre organisation. Explorez comment utiliser les graphes de connaissances pour augmenter la précision, la transparence et la capacité d’explication dans les systèmes d’IA générative. Vous partirez avec une expérience pratique combinant les relations entre les données et les LLM pour apporter du contexte spécifique à votre domaine et améliorer votre raisonnement.
Amenez votre ordinateur portable et nous vous guiderons sur la mise en place de votre propre pile d’IA générative, en vous fournissant des exemples pratiques et codés pour démarrer en quelques minutes.
A Study of Variable-Role-based Feature Enrichment in Neural Models of CodeAftab Hussain
Understanding variable roles in code has been found to be helpful by students
in learning programming -- could variable roles help deep neural models in
performing coding tasks? We do an exploratory study.
- These are slides of the talk given at InteNSE'23: The 1st International Workshop on Interpretability and Robustness in Neural Software Engineering, co-located with the 45th International Conference on Software Engineering, ICSE 2023, Melbourne Australia
Why Mobile App Regression Testing is Critical for Sustained Success_ A Detail...kalichargn70th171
A dynamic process unfolds in the intricate realm of software development, dedicated to crafting and sustaining products that effortlessly address user needs. Amidst vital stages like market analysis and requirement assessments, the heart of software development lies in the meticulous creation and upkeep of source code. Code alterations are inherent, challenging code quality, particularly under stringent deadlines.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Software Engineering, Software Consulting, Tech Lead, Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Transaction, Spring MVC, OpenShift Cloud Platform, Kafka, REST, SOAP, LLD & HLD.
AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI AppGoogle
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(2) SocioWave Review: https://sumonreview.com/sociowave-review
(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
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Hand Rolled Applicative User ValidationCode KataPhilip Schwarz
Could you use a simple piece of Scala validation code (granted, a very simplistic one too!) that you can rewrite, now and again, to refresh your basic understanding of Applicative operators <*>, <*, *>?
The goal is not to write perfect code showcasing validation, but rather, to provide a small, rough-and ready exercise to reinforce your muscle-memory.
Despite its grandiose-sounding title, this deck consists of just three slides showing the Scala 3 code to be rewritten whenever the details of the operators begin to fade away.
The code is my rough and ready translation of a Haskell user-validation program found in a book called Finding Success (and Failure) in Haskell - Fall in love with applicative functors.
2. • A computer needs a program
in order to be able to do
anything.
• A program is a set of
instructions a computer carries
out.
• Software is the general term
for programs or applications
3. Types of Software
1.System software and
2.Application software
• System software includes:
The operating system and utility
programs, control how the hardware
of a computer works.
Programming language compilers/
interpreters;
Performance monitoring software;
Some Communications software.
4. Application software
includes:
Everyday programmes that
you use such as Word
Processors, Spreadsheets and
Databases.
e-mail packages,
web browsers and
Anti-virus software
5. Operating Systems
All computers have an
operating system.
It is a program that controls
the computer hardware (e.g.
keyboard, mouse, storage
devices, etc.) and,
It is the link between the
user and the computer
6. A computer is useless without an
OS
Hardware
OS
Software
8. Types of Operating Systems
• Single-user Operating systems.
• Multi-users or network operating
systems.
e.g. Network systems are more
complicated as they have to deal with
more than one user at a time.
Need to consider:
Security
Access to a central pool of data
Restricted access to certain files
9. Functions of OS
• Sorts out where to store data on disk
drives
• Allow the user to organise files using
folders, and to copy and delete files
• Assist applications software to
communicate with the hardware (e.g.
allow a word processed document to
be printed, save and open new files)
• Manage the system resources (e.g.
allocate CPU time to the tasks being
undertaken)
10. Functions of OS (Cont.)
• Manage the transfer of data to and
from the systems peripheral devices
(e.g. keyboard, mouse, scanner,
printer) and between peripherals i.e
printer/monitor
• Manage system security (e.g.
allocating restricted rights to users
to do certain things through user
names and passwords)
12. Multitasking and OS
Multitasking is the ability to do more
than one thing at a time.
If an operating system can multitask, it
enables a computer system to do
several things at the same time (e.g. A
user can print a document whilst
reading their emails).
13. Multi-users and OS
A multi-user facility allows more than
one user to access data or an
application program at the same time.
Without a multi-user facility in an
operating system would be almost
impossible for a computer network to
function.
14. OS and Utilities
• These are sub-programs used to
maintain the health of the computer
hardware and data.
• They are used as part of, for example :
File Management,
Disk Management,
Memory Management,
Backup,
Data Recovery
Data Compression, and
Anti-virus
15. Biological Virus
• Not a living thing
• Fragment of DNA inside a protective
jacket
• It can’t reproduce itself
• It uses existing cell machinery to
reproduce itself.
16. Computer Virus
• Virus is not a living thing but a
small piece of software
• Virus must attached to some
other program or document in
order to get executed.
• Once it is running, it is then
able to infect other programs or
documents
17. Types of Infections
Normal Virus
• Each time genuine program runs, the
virus runs, too, and it has the chance to
reproduce (by attaching to other
programs)
E-mail viruses
Move around in e-mail messages, and
usually replicates itself by automatically
mailing itself to dozens of people in the
victim's e-mail address book.
18. Worms
• A small piece of software that uses
computer networks and security holes
to replicate itself.
• A copy of the worm scans the network
of another machine that has a specific
security hole.
Trojan horses
• A Trojan horse is simply a computer
program. The program claims to do
one thing (it may claim to be a game)
but instead does damage when you
run it (it may erase your hard disk).
19. Anti-Virus
• A software program that detects and
removes computer viruses.
• E.g Norton, McAfee, eScan, etc.
How to protect yourself?
• Run a more secure OS,
• Use virus protection software,
• Avoid programs from unknown
sources,
• Disable floppy disk booting,
• Enable Macro Virus Protection in all
Microsoft applications,
20. •Never double-click on an
attachment that contains an
executable that arrives as an e-mail
attachment
21. Applications Software
• Applications software works through
the operating system to gain access to
the hardware
• Applications software is designed to
perform specific tasks.
• Application software caries out user-
related tasks and can be classified as:
general-purpose
specialist (Application or Integrated
packages) or
tailor-made software.
22. Explain briefly what the
term ‘General Purpose
Software’ means
List the main reasons why people choose to use
this type of software
23. General Purpose Applications
• Type of software that can perform
many different related tasks
• This type of software is sometimes
called generic software.
• E.g. Word processors, spreadsheets,
databases, graphics, and presentation
software
• It is very popular as it is relatively
cheap, well tested, and has wide
support (e.g. cf manuals and tutorials).
• There are ready-made
24. Reasons for using ready-made
software
• It is relatively cheap;
• It is readily available and can be
installed quickly and easily;
• It will have been thoroughly tested
so there will be very little chance of
it having any serious faults or ‘bugs’;
• It will be well supported with a lot of
books about how to use it available
as well as on-line help and
discussions on the Internet.
25. Integrated Packages
• An integrated package
combines many different
types of application together
in a single package that shares a
common set of commands
• They usually include facilities for word
processing, spreadsheets, databases,
graphics, presentation and
communications
27. Integrated Packages
Advantages
• It is cheaper to buy one integrated
package rather than buying several
separate application packages;
• Different applications have the same
user interface;
• Data can be transferred quickly and
easily between applications;
• They are much quicker to install than
several separate application packages
28. Disadvantages
• Tend to have weak areas (e.g. better
at word processing than spreadsheets)
• Data is not easily moved to programs
that are not part of the package
• Individual applications do not have as
many features compared to the single
application package
29. Integrated Packages Cont’d
• They have gradually been replaced by
applications bundled together by
software manufacturers and sold as
suites of programs
• Bundled suites have a complete set of
features, a common user interface and
easy facilities for sharing and
exchanging data
• Eg. Microsoft Office XP— database,
spreadsheet, word processing and
desktop publishing software
30. Specialist Application Software
• Performs a single & very specific type
of task
• E.g Programs to work out payroll,
calculate accounts, plan driving routes,
work out income tax returns, deal with
stock control and handle appointments
Education Software
31. Educational Software
• These are computer software whose
primary purpose is for teaching.
• It ranges from programs for pre-
school children, which have a large
entertainment component, to
straightforward typing tutors and
programs that teach foreign
languages or science subjects
32. Examples of Education Software
• Application(productivity) software
– not originally designed for teachers
but support creative and unusual
learning activities .
• Drills and practice - software that is
characterised by a stimulus-response
approach to learning (Qs-Ans).
• Interactive multimedia - is a
collection of different forms of media,
interlinked to provide coherent access
to information
33. • Logo - is a procedure oriented
computer programming language
developed for young children to teach
the computer how to perform tasks
• Modelling/ Simulations software to
demonstrate real-life situations
• Helps students learn by doing
34. Explain what term ‘tailor
made software’ means and
why people might choose
to use this type of software
Give examples of Tailor made software
35. Tailor-made Software
• Also called Tailor-made, or Bespoke
• Software made for a special purpose for
an organisation (e.g. government,
banks, insurance companies,
manufacturers)
• Especially if not found in the market
• It is very expensive because it is
designed for a specific purpose.
• A long time is taken to make the
programs take to develop
36. Questions to consider when buying new
software:
• What sort of tasks will the software be used
for?
• How much does the software cost and how
much money is available to buy it?
• What operating system does the software
need? Software will only work with the
operating system that it was designed for?
• What are the minimum system requirements
for the software? Every application package
has a minimum set of hardware requirements
such as how much hard disk space and memory
are needed.
37. • Will the software be used on a single
computer or on a network?
• How much support is available for
users? (on-line help, telephone
support lines, internet sites and
printed manuals).
• How easy is the software to install —
can an ordinary user carry out the
installation or will an ICT expert be
needed to do it?
38. Exercise
1. Compare and contrast hardware and software
2. Describe the importance of Operating system to a
computer operation
3. Describe some benefits to be gained from
engaging in hands-on computer learning rather
than reading a textbook
4. Explicate what a file is and justify its importance
in handling computer information.
5. Explain what file management is and how it is
relevant.
6. Imagine you have been employed by a school.
After the school head has seen your UDSM
course coverage, asked you to advice on buying
computers for the school. What advice will you
give in terms of software and hardware. Which
one takes precedence in your decision making
process (hardware or software)? why?