Preemptive multitasking
Preemptive multitasking: Preemptive multitasking is an operating system capability that allows the OS to control how long a program can run on the CPU before giving other programs a chance to execute. The OS forcibly interrupts the currently running program to allow others to run, improving system responsiveness and efficiency. It’s critical for ensuring fair […]
Pre-production Model
Pre-production Model: A pre-production model refers to early versions of a product, which are created to test and validate design and functionality before full-scale production begins. In software development, it may include alpha or beta versions of a program. In manufacturing, it could be a prototype of a device. These models are essential for identifying […]
Preshared Key
Preshared Key: A cryptographic key that is shared between parties before it is used for encryption or authentication purposes. PSKs are commonly used in various forms of secure communication methods, such as wireless networks (like WPA-PSK in Wi-Fi networks) or in VPN connections, to establish a secure channel over an otherwise insecure medium. Despite its […]
Permissions
Permissions: The level of access that a user, group, or process has to a system or its resources. They are an essential component of access control, helping to ensure that only authorized individuals or processes can view, modify, or execute specific files or operations. The administration of permissions is a critical task in maintaining system […]
Personal Identification Number (PIN)
Personal Identification Number (PIN): A secret numeric password used to verify a user’s identity and access specific services or systems, providing an additional layer of security against unauthorized access. Examples include ATM PINs and phone unlock codes.
Personal Identification Verification Card
Personal Identification Verification Card: The Personal Identification Verification (PIV) Card is a United States federal government standard for secure and reliable forms of identification for federal employees and contractors. The PIV card serves as a government-issued identification card for access to federal buildings and information systems, and includes integrated security features such as cryptographic keys, […]