1/5/2024 0 Comments Affinity photo linuxNext on the scene came desktop publishing (DTP) packages that revolutionized publishing by allowing the electronic rather than manual layout of words and images. You can learn the basics of using any spreadsheet package in this video: Whilst word processors are still the most widely used of these applications, early spreadsheets (such as VisiCalc and Lotus 1-2-3) initially had the greatest impact as they quite literally allowed computational tasks that used to take days or weeks to be completed in minutes. When personal computers first went mass-market in the 1980s, the most widely used applications programs were "office software" packages comprising word processors, spreadsheets and databases. For many users, a Linux distro is now offers a perfectly reasonable alterative to Windows - a subject I cover in these two videos:Īpplications programs are what a computer user needs to run to do productive work. This is an open-source operating system for which many free distributions or "distros" are now available. Not least due to concerns associated with the evolution of Windows from being a product to being a service, there is an increasing interest in Linux. In the following video I capture something of the essense of this debate: Inside the Windows camp, there are also heated deabtes concerning the relative merits of running Windows 7 (for which extended service updates cease on 14 January 2020) and Windows 10 (which many loathe due to a perception that it captures too much user data and offers too little user control). These days, while most users could not really care less about their operating system, others have very strong opinions and will zealously argue why the system they run is best. However, the vast majority of computers only ever have one operating system. It is possible to have multiple operating systems installed on one computer, and even to run one operating system within another on a so-called "virtual machine". For desktop or laptop computers, today the main choices of operating system today are Windows, Mac OS, Linux or Chrome OS, while a tablet or smartphone will typically run Android, iOS or Windows. OPERATING SYSTEMSĪ computer's operating system determines which locally-installed applications it can run. Falling into category would be software such as virus checkers and firewalls (both as discussed in the security section). Where used, this term refers to more "minor" applications programs that enable effective computer management and/or security. Sometimes a third category of software is labelled as "utilities". In one of their early PC manuals, IBM once described a computer's operating system as like a policeman that directs the traffic (of computer activity) at a busy intersection.Īpplications programs can only run when an operating system is present, and are those pieces of software (such as word processors, spreadsheets, web browsers and graphics packages) that deliver specific, valued functionality to the user. Operating systems are the software that configure and present computer hardware to the user, and which in doing so co-ordinate basic activities such as memory management, capturing data from the keyboard and mouse, generating an image on the display screen, printing, and networking. Software also comes in two basic forms known as operating systems and applications programs. Software refers to the programs that run on a computer, and which make the hardware useful. Key Topics: Operating Systems Applications Programs Open Source SaaS INTRODUCTION
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