What is a context switch? A context switch is an operation that a computer’s central processing unit (CPU) carries out when alternating between processes or threads while ensuring that the processes do not conflict. Effective context switching makes it possible to support a multitasking environment. Each time the CPU makes a switch, the system temporarily […]
To a lot of IT leaders, quantum computers sound closer to science fiction than something that can be implemented in their data centers. But it’s on the way; IBM last month introduced System Two, the first quantum computer that connects three processors to work together. Last year’s small steps on the quantum roadmap are turning […]
What is a logical partition (LPAR)? A logical partition (LPAR) is a subset of a computer’s processor, memory and I/O resources that behaves much like a physical server. A computer can host multiple LPARs, each one running independently of the other. The LPAR has its own operating system (OS), applications and configurations, just like its […]
What is green computing? Green computing, also known as green technology, is the use of computers and other computing devices and equipment in energy-efficient and eco-friendly ways. Organizations that use green computing methods often deploy energy-efficient central processing units (CPUs), servers, peripherals, power systems and other IT equipment. They also focus on reducing resource use […]