Haiku Applications  Haiku is a free and open-source operating system compatible with the now discontinued BeOS. Haiku applications are usually available as HPKGs; however, unpackaged applications can be installed by using Haiku PackageInstaller for legacy BeOS apps or manually unzipping the install files into one of the non-packaged installation folders. Haiku comes with a set of mostly small yet essential applications. Core applications are an essential part of Haiku, as they serve many different purposes. Haiku also has some 3rd party applications to supplement the core applications. The applications are usually executed by double clicking on the icon. ActivityMonitor is a system monitor, making it possible for users to analyse the performance and function of their hardware. They can view components such as the memory being used, cached memory, and CPU usage. ActivityMonitor presents the information in graph form, which makes it easy for the users to understand their computer performance. Haiku CharacterMap is a Character Map utility that shows the UTF-8 Code of every character a font supports. The font size can be changed and the user can drag any character into the StyledEdit application or the character can be copied and pasted where needed. CodyCam is a photo and video capture program that makes it possible for the user to take pictures at a specified interval from a connected webcam or any other video-in device and upload it via FTP. Users can specify the file's name; the image and video format; the capture interval and the network details for uploading to a FTP server. DeskCalc is a simple Calculator that can perform different tasks related to mathematics. It has a simple interface and on the front screen it has some functions or buttons which can perform addition, subtraction, multiplication and division but it is not restricted to these only. DeskCalc can also perform tasks related to trigonometry. The type of the calculator can also be changed into scientific, radical or any other type to use it for different purposes. DiskProbe is a Hex editor to view and alter data of a file or on a device on a byte-level. It is a very low-level tool which means that only the ones who are familiar with such language can use them and one wrong command can change the whole nature of the program so developers have to be careful when using this. At the start, a file has to be chosen by the user to edit it further in the application. The main view shows a block of data and its size can be changed and offset can be set as well.