Introduction To Computers
Notebook computers, also known as Laptop computers, are wonderfully portable and functional, and popular with travelers who need a computer that can go with them. Most notebooks accept diskettes or network connections, so it is easy to move data from one computer to another. Notebooks are not as inexpensive as their size might suggest; many carry a price tag equivalent to a full-size personal computer for business. They typically have almost as much computer capacity in terms of speed and storage. They do not offer the full expandability for supporting peripherals as a personal computer. In mid-2012 the most powerful supercomputer was a Linux-based IBM Sequoia-BlueGene/Q system powered by Power BQC 16-core processors running at 1.6GHz. The system, installed at Lawrence Livermore National Laboratory and called Jaguar, has a total of 1,572,864 cores and 1,572,864GB of memory, achieves a sustainable speed of 16.32 petaFLOPS, and consumes 7.89MW of power. Today most supercomputers are M...