Index_N

N

NaN ( not-a-number ), 78-79

NAND

logical, 196

universal Boolean function, 213

NAND gate, 213

constructing an AND gate, 214

constructing an OR gate, 214

implementation of any Boolean function, 213

implementing a D flip-flop with, 222

inverter built from a, 213

set/reset flip-flop constructed from, 220

NAND operation, 196

AND logic functions, 213

constructing logic functions using, 213

nanoseconds, 150

n -bit adder , 215

nearest floating-point operation, 77

near-line storage subsystems, 298, 360

negation, logical, 192

negation algorithm, 25

network storage, 297

Neumann, John von, 134

new memory allocation

function, 164

operator (C++ or Pascal), 321

nibble, 22

non-80 —86 processors, 143

Non-Uniform Memory Access, 297.

See also NUMA

non-volatile storage, 363

NOR

logical, 196

operation, 196

normalized values, 75

NOT

instruction (Y86), 269, 276

logical, 196

operation, 46, 47, 192, 196

precedence in a Boolean

expression, logical, 194

truth table, 47

not-a-number (NaN)

quiet, 78

signaling, 78

notation, scientific, 66

notation system, 11

notification of interrupts, 345

NuBus, 338

NUL character, 112

null pointer references, 317

NUMA (Non-Uniform Memory Access), 297

peripheral devices and, 313

number, 10

abstract concept of, 10

of Boolean functions, 195

packed fields encoding, 61

representation of, 10

of values representable with bit strings, 24

number system

Arabic, 11

base-2, 13

base-8, 13

base-10, 11

binary, 13

decimal positional, 11-13

hexadecimal, 15

nonpositional, 11

octal, 18

positional, 11-12

radix (base), 12

two's complement, 24

numbers

comparing, 69

defined, 10

dynamic range in floating-point, 66

eager approach to comparing, 71

function, 197

generating minterms from binary, 199

logical operations on binary, 47

miserly approach to comparing, 71

odd, 26

properties of binary, 25

signed and unsigned, 24

truncation , 77

numerals

Arabic, 11

Roman, 10

numeric abstraction, 10

numeric digits

in ASCII character set, 105

ASCII codes for, 106

grouping character codes for, 124

numeric formats, scaled, 35

numeric overflow, 80

numeric quantities , 10

numeric representation, 9, 10, 21

base-8, 18

external, 10

internal, 10, 21

octal, 18

tally/slash, 11

numeric underflow, 80

numeric values, 11

numeric to string conversions, 19

n -way set associative cache, 304