Section 4.0

4.1.1

 Paper Tape Devices

    .2

 Card Devices

    .3

 Line Printers

    .4

 Magnetic Tape

    .5

 Drum

    .6

 Hough-Powell Device

    .7

 IBM Tape Decks

    .8

 Electrodata Unit

    .9

 Ericsson keyboard & Flexowriters

    .10

 Orion 2 Extracodes

4.3.1

 Introduction

    .2

 Modes

    .3

 7-track + 5-track Codes

    .4

 Parity.

    .5

 General Description

    .6

 Timing

    .7

 Controls Incidents and Messages

    .8

 End of Tape

    .9

 Orion 2 Differences.

4.4.1  

 Introduction

    .2  

 Modes

    .3 

 Coded

    .4  

 Binary

    .5  

 Storage of Data

    .6  

 Input Conversion

    .7  

 I.C.T. 593 End Fed Card Reader Description

    .8

 Orion 2 Differences.

4.5.1

 Control Unit

    .2

 Transfer of Data to Buffer Store

    .3

 Data Buffer NL PT, TB characters

    .4

 Code Buffer

    .5

 Buffer Store Cycle Time

    .6

 Punching Cards in Binary

    .7

 I.C.T. 665 Printer Description

    .8

 I.C.T. 582 Card Punch Description

    .9

 Anelex Type 4 Description

    .10

 Anelex Type 5 Description.

    .11

 Orion 2 Differences.

4.7.1  

 General

   .2  

 Layout of Information-Block 0

   .3  

 High Density Installation

   .5  

 Checking

   .6  

 OMP action on magnetic tape Interrupts

   .7  

 Deck and. Operation

   .9  

 Programming Techniques