Generally there are four types of Computer according to size, work & speed, They are as follows: 1. Super Computer: A supercomputer is a computer with a high-level computational capacity. Performance of a supercomputer is measured in floating point operations per second (FLOPS). As of 2015, there are supercomputers which can perform up to quadrillions of FLOPS. Supercomputers were introduced in the 1960s, made initially, and for decades primarily, by Seymour Cray at Control Data Corporation (CDC), Cray Research and subsequent companies bearing his name or monogram. While the supercomputers of the 1970s used only a few processors, in the 1990s machines with thousands of processors began to appear and, by the end of the 20th century, massively parallel supercomputers with tens of thousands of "off-the-shelf" processors were the norm. Since its introduction in June 2013, China's Tianhe-2 supercomputer is currently the fastest in the world at 33.86 petaFLOPS (PFLOP...
What Is MAC Address? ➤A media access control address ( MAC address ) of a device is a unique identifier assigned to a network interface controller (NIC). For communications within a network segment, it is used as a network address for most IEEE 802 network technologies, including Ethernet, Wi-Fi, and Bluetooth. ➤ A media access control address (MAC address) is a unique identifier for an Ethernet or network adapter over a network. ➤ A MAC address is also known as physical address, hardware address and burned-in address. ➤ MAC addresses are permanent and can’t be changed. Each MAC address consists of a 12-digit hexadecimal notation, which is embedded within the NIC firmware and is composed of a six-digit manufacturer’s organization unique identifier followed by a six-digit serialized or random unique identifier. How Does a MAC Address Look Like? Generally a MAC Address looks like: 65 :0a:95:9d:68:16