Glossary index

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Operating systems

Pgrep

Pgrep is a command-line utility that allows users to search for running processes on Unix-like operating systems using criteria such as process name, user identifier (UID), and other attributes. Its…

Operating systems

Phablet

A phablet is a mobile device that combines the features of a smartphone and a tablet, offering a larger screen than a conventional smartphone, typically between 5.5 and 7 inches. This type of device…

Operating systems

Phantom Reference

A phantom reference is a type of reference in programming that allows access to an object without preventing it from being collected by the garbage collector. Unlike strong references, which keep an…

Operating systems

PhoneGap

PhoneGap is a mobile application development framework that allows developers to create applications using HTML, CSS, and JavaScript. This approach facilitates the creation of cross-platform…

Operating systems

PHP-Cache

PHP-Cache is a library designed to cache data in PHP applications, allowing for improved performance and efficiency. Caching data means temporarily storing information so it can be retrieved quickly…

Operating systems

Physical Address

A physical address is the actual location in memory where data is stored. In the context of computer architecture, each byte of memory has a unique address that allows the operating system and…

Operating systems

Physical Address Space

The physical address space refers to the range of addresses that a process can use to access the physical memory of a system. In a computing environment, each process has its own address space…

Operating systems

Physical Device Driver

A physical device driver is software that enables communication between a computer's operating system and physical hardware components. These drivers are essential for the operating system to…

Operating systems

Physical Layer Driver

A physical layer driver is an essential component in network architecture that manages the physical layer of communication. This layer is the lowest in the OSI (Open Systems Interconnection) model…

Operating systems

Physical Memory

Physical memory refers to the actual hardware memory in a computer system. This memory is where data and programs that are actively in use by the operating system and applications are stored. Unlike…

Operating systems

Physical Memory Addressing

Physical memory addressing refers to the method of directly accessing memory locations in a computer system. In this context, each byte of memory has a unique address that allows the CPU to read or…

Operating systems

Physical Memory Driver

A physical memory driver is an essential component in computer architecture that manages access to physical memory resources. Its primary function is to facilitate communication between the CPU and…

Operating systems

Physical Memory Management

Physical memory management refers to the process by which an operating system (OS) manages and organizes a computer's RAM. This process is crucial to ensure that running applications and processes…

Operating systems

Physical Network Adapter

A physical network adapter is a hardware component that connects a computer to a network, enabling communication between devices. This device can be an integrated network card on the motherboard or…

Operating systems

Pico-OS Mobile

Pico-OS Mobile is a version of Pico-OS adapted for mobile devices, designed to provide an optimized user experience on smaller screens and with limited resources. This operating system is…

Operating systems

PID Controller

A PID (Proportional, Integral, Derivative) controller is a widely used feedback control loop mechanism in industrial control systems. Its main function is to adjust the output of a system to maintain…

Operating systems

Pin

A pin is a mechanism used in computer systems to keep a page in memory, preventing it from being swapped out. This concept is fundamental in memory management, as it allows certain data to remain…

Operating systems

Pine64

Pine64 is a company that produces single-board computers and smartphones running various Linux-based operating systems. Its focus is on providing accessible, open-source hardware, allowing developers…

Operating systems

Pine64 OS

Pine64 OS is a Linux-based operating system specifically designed for use with Pine64 hardware. This operating system focuses on providing an optimized experience for various devices, allowing for a…

Operating systems

PinePhone

PinePhone is a smartphone that runs various Linux-based operating systems, designed for privacy and freedom. This device stands out for its focus on customization and accessibility, allowing users to…

Operating systems

PinePhone Community Edition

PinePhone Community Edition is a version of the PinePhone developed with contributions and support from the community. This device stands out for its focus on user privacy and freedom, allowing the…

Operating systems

PinePhone OS

PinePhone OS is an operating system specifically designed for the PinePhone, an open-source smartphone that allows users to experiment with various Linux distributions. This operating system is…

Operating systems

PinePhone Pro

PinePhone Pro is an advanced version of the PinePhone, with improvements in hardware and software capabilities. This device stands out for its focus on user privacy and freedom, allowing the…

Operating systems

PineTab

PineTab is a tablet device that runs various Linux-based operating systems, designed for portability. This device stands out for its focus on the open-source community, allowing users to customize…

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