NTA-NET (UGC-NET) Electronic Science (88) Digital Electronics-Arithmetic Circuits Study Material (Page 4 of 6)

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Fixed Point Arithmatic

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Introduction

Computers use binary numbers for storing information. Whether it is a number or a character or any kind of data, computers use fixed number of bits for representation. Integers can be represented in 8-bit, 16-bit, 32-bit, or 64-bit. Number of bits in the representation will decide the range of integers. In addition to the bit length for integers, it is important to know various representation schemes like signed and unsigned integers. An 8-bit unsigned integer can have a range of 0 to 255, whereas an 8- bit signed integer has a range of -128 to 127.

Fixed-Point Representation

In almost all computations, the numbers can be represented and processed b…

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Floating-Point Representation

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The floating-point or scientific notation allows representing very large and very small numbers either integers or real ones. Floating point numbers allow an arbitrary number of decimal places to the right of the decimal point. These numbers are often represented in s…

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