Broadly, the analog instrument (and for that matter digital instruments) may be classified according to the quantity they measure. For example, an instrument meant for measurement of current is classified as an Ammeter while an instrument that measures voltage is classified as a Voltmeter. In addition to above instruments, we have wattmeters, power factor meters,
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1. What is meant by DMA data transfer? DMA stands for Direct Memory Access. In order to transfer bulk amount of data between memory and I/O device without the involvement of CPU, this technique is used. 2. What are the modes of operations supported by 8255? Simple mode Strobed I/O mode Bidirectional mode 3. What is
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1. What are the three basic multiprocessor configurations that the 8086 can support? Coprocessor Configuration Closely Coupled Configuration Loosely Coupled Configuration 2. What do you mean by numeric processor? 8087 is the numeric processor or numeric co-processor. It adds arithmetic, trignometric, exponential and logarithmic instructions to 8086/8088 instruction set for all data types. It supports
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1. What do you mean by non maskable interrupt? Non-maskable interrupt (NMI) is the highest priority hardware interrupt that triggers on the positive edge. This interrupt cannot be disabled or masked. It is used to save program data or processor status in case of system power failure. 2. List out the segment registers of 8086?
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Primary standards : These standards are always fixed standards, single valued. The campbell type of primary standard is shown in fig. It consists of a single layer primary coil of bare copper wire wound under tension in grooves machined in a cylinder of marble. The primary coil is divided into two parts. The two parts
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