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The PDP-12 (Programmed Data Processor) is a computer that was created by Digital Equipment Corporation (DEC) in 1969 and marketed specifically for science and engineering. [1] It is the third in the LINC family and its main uses were for applications in chemistry, applied psychology, patient monitoring and industrial testing. [ 2 ]
A floating-point unit (FPU), numeric processing unit (NPU), [1] colloquially math coprocessor, is a part of a computer system specially designed to carry out operations on floating-point numbers. [2] Typical operations are addition , subtraction , multiplication , division , and square root .
A version of the XGA format, the native resolution for many 30" widescreen LCD monitors. Also, the highest resolution supported by dual-link DVI at a standard colour depth and non-interlaced refresh rate (i.e. at least 24 bpp and 60 Hz). Used on MacBook Pro with Retina display (13.3"). Requires 12 MB of memory/bandwidth for a single frame.
The PDP-5 was a success, ultimately selling about 1,000 machines. This led to the PDP–8, a further cost-reduced 12-bit model that sold about 50,000 units. During this period, the computer market was moving from computer word lengths based on units of 6 bits to units of 8 bits, following the introduction of the 7-bit ASCII standard.
A Medium Attachment Unit (MAU) is a transceiver which converts signals on an Ethernet cable to and from Attachment Unit Interface (AUI) signals. On original 10BASE5 (thicknet) Ethernet equipment, the MAU was typically clamped to the Ethernet wire via a vampire tap and connected by a multi-wire cable to the computer via a DA-15 port, which was ...
The +12 V supply was used for computer fan motors, disk drive motors and serial interfaces (which also used the −12 V supply). A further use of the 12 V came with the sound cards, using linear chip audio power amplifiers, sometimes filtered by a 9 V linear regulator on the card to cut the noise of the motors.
Power usage effectiveness (PUE) or power unit efficiency is a ratio that describes how efficiently a computer data center uses energy; specifically, how much energy is used by the computing equipment (in contrast to cooling and other overhead that supports the equipment).
In semiconductor design, standard-cell methodology is a method of designing application-specific integrated circuits (ASICs) with mostly digital-logic features. Standard-cell methodology is an example of design abstraction, whereby a low-level very-large-scale integration layout is encapsulated into an abstract logic representation (such as a NAND gate).