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A stored-program, general-purpose <br />digital computer <br />B parallel mode of operation <br />G 48-bit word length <br />D single-address logic, 2 instructions <br />per 48-bit word: <br />operation code . . . . . . . . . . . 6 bits <br />index designator . . . . . . . . . . 3 bits <br />base execution address . . . . .15 bits <br />E 6 index registers <br />F indirect addressin� feature <br />G 32,768 48-bit words of magnetic <br />core storage: <br />storage in two independent 16,384- <br />word banks, alternate phased <br />4.8 microseconds effective cycle time <br />(representative program) <br />6.4 microseconds total cycle time, <br />each bank <br />H highly versatile input-output <br />facilities: <br />3 48-bit buffer input channels <br />3 48-bit buffer output channels <br />1 high-speed 48-bit input transfer <br />channel <br />(4.8 microseconds, 48-bit parallel <br />word) <br />1 high-speed 48-bit output transfer <br />channel <br />(4.8 microseconds, 48-bit parallel <br />word) <br />I program interrupt <br />1 control console includes: <br />350 character per second transistor- <br />ized photo-electric paper tape <br />reader <br />60 character per second paper tape <br />punch <br />input-output electric typewriter <br />translated contents of all operational <br />registers displayed as Arabic <br />numerals (octal) <br />K flexible repertoire of 6�2 instruc- <br />tions provides: <br />fixed binary arithmetic (integer and <br />fractional) • floating binary point <br />arithmetic • logical and masking <br />operations • indexing • memory <br />searching • input-output • sequence <br />control (conditional and uncor,di- <br />tional) • multiple precision capability <br />(accumulator and auxiliary register <br />treated as a single double length <br />�egister), etc. <br />L binary arithmetic — modulus 24B <br />minus one (one's complement): <br />parallel addition, 1.2 microseconds <br />basic add time (without access) <br />M real-time clock <br />N completely solid state: <br />diode logic • transistor amplifiErs • <br />magnetic core memory <br />0 small size <br />goes in 20' x 20' room <br />P low power consumption <br />