6 ▁ µ s ▁ ▁Const ruction ▁( ar ithmetic ▁unit ▁only ): ▁trans istor - di ode ▁logic ▁is ▁used . ▁Tim ing : ▁▁▁ ▁S ynchronous ▁Operation : ▁Se qu ential ▁ ▁Input ▁ 4 8 ▁digital ▁lines ▁( input ) ▁ 2 6 ▁special ized ▁increment al ▁inputs ▁▁▁▁▁ ▁- Med ium - ▁▁▁▁▁▁▁▁▁▁▁▁ ▁- Speed - ▁▁▁▁ ▁P aper / M yl ar ▁T ape ▁▁▁▁▁▁ 6 0 0 ▁chars / sec ▁▁▁▁ ▁Key board ▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁Man ual ▁▁▁▁ ▁Type writer ▁▁▁▁▁▁▁▁▁▁▁ ▁Man ual ▁ ▁OUT PUT ▁▁▁▁ ▁- Med ium - ▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁- Speed - ▁▁▁▁ ▁Pr inter ▁Character ▁▁▁▁▁ 7 8 . 5 – 2 , 4 3 3 ▁ms ▁▁ ▁( Program ▁Control ) ▁▁▁▁ ▁Ph ase ▁- ▁Vol t age ▁▁▁▁▁▁ ▁( Program ▁Control ) ▁▁ 2 8 ▁digital ▁lines ▁( output ) ▁ 1 2 ▁analog ▁lines ▁( output ) ▁ 1 3 ▁pul se ▁lines ▁( output ) ▁ 2 5 , 6 0 0 ▁word / s ▁maximum ▁I / O ▁transfer ▁rate ▁ ▁Phys ical ▁characteristics ▁Dim ensions : ▁ 2 0 ▁in ▁high , ▁ 2 9 ▁in ▁diameter , ▁ 5 ▁in ▁ ▁deep ▁Power : ▁ 2 8 ▁V DC ▁at ▁ 2 5 ▁A ▁Circ uits : ▁D RL ▁and ▁D TL ▁We ight : ▁▁ ▁Const ruction : ▁Double ▁co pper ▁cl ad , ▁gold ▁pl ated , ▁glass ▁fi ber ▁l amin ate , ▁flexible ▁poly ure th ane - co ated ▁circuit ▁bo ards