PROGRAM AND APPS CHAPTER 4

   An App is a program. App is short for “Applicarion Program”, and is generally a user-facing program for accomplishing a particular task or set of tasks. Think: a game, a word processor, a spreadsheet, etc. The operating system (Windows, Mac OS, iOS, Android, etc) is also a program but is not an app. “Program” is simply a broader category.

   Software, programs, applications are essentially the same thing. Before Apple came up with the App Store, there were software programs you would buy. But since Apple popularize the term application there seems to be great confusion between what the difference really is. Software, application or programs are all designed with the objective of solving one or more problems.

   The operating system (OS) is the most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs and applications. Computer operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the storage drives, and controlling peripheral devices, such as printers. 

   Laptops, tablets, and desktop computers all run operating systems that you've probably heard of. Some examples include versions of Microsoft Windows (like Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP), Apple's macOS (formerly OS X), iOS, Chrome OS, BlackBerry Tablet OS, and flavors of the open source operating system Linux.

   Most software programs are designed to work with just one company's operating system, like just Windows (Microsoft) or just macOS (Apple).A piece of software will clearly say which operating systems it supports and will get very specific if necessary. For example, a video production software program might say it supports Windows 10, Windows 8, and Windows 7, but does not support older versions of Windows like Windows Vista and XP.

New uses of current and widely accessible communication media, such as print and telephone, have been possible because of computer applications that have permitted content to be tailored to individuals, allowing people to use older tools in new ways. Tailored print communications (TPCs) and telephone-delivered interventions (TDIs) are among the most widely used innovations. The potential of these media for reaching those with and without Internet access, and people with highly diverse linguistic and cultural requirements, should not be underestimated, nor should the challenge of harnessing the new media to reach diverse audiences. 

      The application security tools in CA Veracode’s cloud-based service are purpose-built to deliver the speed and scale that development teams need to secure applications while meeting build deadlines.Automation is central to securing web applications with application security tools from CA Veracode. By seamlessly integrating testing into the development lifecycle, CA Veracode lets developers find flaws earlier in the process when it’s most cost-effective to fix them, enabling teams to to improve security without additional staff, equipment or expense.