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The 160 FUNCTIOI�AL CHARACTERISTI�S I-�Summary of Characteris�ic5 . Stored program, general-purpose, digitai computer . Operates in high-speed parallel mode . 12-bit word length . Binary arithmetic—modulus 212 minus one: function code ... .. . . .. . . . . .6 bits execution address. . . . . . . . .6 bits . Addressing features include: direct, in- direct, and relative a�dressing . Constants stored in instructions as well as in memory . 4096 words of magnetic core storage: storage cycle time of 6.4 microseconds average instruction execufiion time of 15 microseconds • Single address logic . Ffexible repertoire of C2 instructions . Completely solid state: diode logic, tran- sistor amplifiers, and magnetic core memory . Uses 500 watts of 110 volt, 60-cycls power II—Introduction Operation of the 160 is sequenced by an internally stored program. This program, �s well as the data being processed, is contained in the high-speed, random-access memory. An instruction is a 12-bit word consisting of: � 6-bit function code F, and a 6-bit execution address E. By means of the direct, relative, and indirect addressing features, it is very simple to operate on data in the computer and to make program modifications when desired. A general purpose input channel and output channel are provided for attaching a variety of input-output devices to the 160 Computer. Stand- ard input-output equipment consists of a Ferranti : S REGISTER (12 BITS) FUNCTION TRANSLATOR F REGISTER (6 BITS) B REGISTER (12 BITS) A REGISTER (12 BITS) P REGISTER (12 BITS) C:�F, E STORAGE 4096 WORDS, 12 BITS EACH Z REGISTER (12 BITS} ADDER (12 BITS)