About: AN/UYK-8

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The AN/UYK-8 was a UNIVAC computer.It used the same 30-bit words and instruction set as the AN/USQ-17 and AN/USQ-20 Naval Tactical Data System (NTDS) computers, built with "first generation integrated circuits" which made it about one quarter of the volume of the AN/USQ-20 and two processors instead of just one. Instructions were represented as 30-bit words, in the following format: Numbers were represented as full 30-bit words, this allowed for five 6-bit alphanumeric characters per word. The main memory was increased to 262,144 words (256K words) of magnetic core memory.

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  • The AN/UYK-8 was a UNIVAC computer.It used the same 30-bit words and instruction set as the AN/USQ-17 and AN/USQ-20 Naval Tactical Data System (NTDS) computers, built with "first generation integrated circuits" which made it about one quarter of the volume of the AN/USQ-20 and two processors instead of just one. Instructions were represented as 30-bit words, in the following format: f 6 bits function code j 3 bits jump condition designator k 3 bits partial word designator b 3 bits which seven index register to use (B0=non used) s 2 bits which S (5bits) register to use S0,S1,S2,S3(P(17-13)) y 13 bits operand address in memory memory address=Bb+Ss+y=18bit(262144Words) Numbers were represented as full 30-bit words, this allowed for five 6-bit alphanumeric characters per word. The main memory was increased to 262,144 words (256K words) of magnetic core memory. The available processor registers were: * one 30-bit arithmetic (A) register. * a contiguous 30-bit Q register (total of 60 bits for the result of multiplication or the dividend in division). * seven 30-bit index (B) registers. (en)
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  • The AN/UYK-8 was a UNIVAC computer.It used the same 30-bit words and instruction set as the AN/USQ-17 and AN/USQ-20 Naval Tactical Data System (NTDS) computers, built with "first generation integrated circuits" which made it about one quarter of the volume of the AN/USQ-20 and two processors instead of just one. Instructions were represented as 30-bit words, in the following format: Numbers were represented as full 30-bit words, this allowed for five 6-bit alphanumeric characters per word. The main memory was increased to 262,144 words (256K words) of magnetic core memory. (en)
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  • AN/UYK-8 (en)
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