Library / Engineering & Technology / Preliminary Specifications: Programmed Data Processor Model Three (PDP-3) / Braille
Preliminary Specifications: Programmed Data Processor Model Three (PDP-3) ⠃⠗⠋ braille edition
Grade 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.
Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt
60,216 braille cells · 63 embossed pages at 40×25 · 132 unrepresentable characters omitted
⠠⠝⠀⠏⠕⠎⠊⠞⠊⠕⠝⠎⠂⠀⠱⠻⠑⠀⠠⠝⠀⠊⠎⠀⠕⠉⠞⠁⠇⠀⠙⠊⠛⠊⠞⠎⠀ ⠼⠛⠤⠁⠁⠀⠷⠀⠮⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠘⠺⠲⠀⠀⠀⠀⠠⠩⠊⠋⠞⠀ ⠠⠔⠤⠠⠕⠥⠞⠀⠠⠗⠑⠛⠊⠌⠻⠀⠠⠐⠗⠀⠶⠼⠁⠉⠀⠥⠎⠑⠉⠲⠀⠍⠁⠭⠊⠍⠥⠍⠀⠿ ⠀⠼⠉⠋⠀⠩⠊⠋⠞⠎⠶⠀⠀⠀⠎⠊⠗⠀⠠⠝⠀⠀⠠⠕⠏⠻⠁⠞⠊⠕⠝⠀⠠⠉⠕⠙⠑⠀ ⠼⠋⠛⠋⠀⠀⠠⠹⠊⠎⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠺⠀⠩⠊⠋⠞⠀⠮⠀⠉⠕⠝⠞⠢⠞⠎⠀⠷ ⠀⠮⠀⠠⠔⠤⠠⠕⠥⠞⠀⠠⠗⠑⠛⠊⠌⠻⠀⠐⠗⠀⠠⠝⠀⠏⠕⠎⠊⠞⠊⠕⠝⠎⠂⠀⠱⠻⠑⠀ ⠠⠝⠀⠊⠎⠀⠕⠉⠞⠁⠇⠀⠙⠊⠛⠊⠞⠎⠀⠼⠛⠤⠁⠁⠀⠷⠀⠮⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀ ⠘⠺⠲⠀⠀⠀⠀⠠⠩⠊⠋⠞⠀⠠⠔⠤⠠⠕⠥⠞⠀⠠⠗⠑⠛⠊⠌⠻⠀⠠⠇⠑⠋⠞⠀⠶⠼⠁⠉⠀ ⠥⠎⠑⠉⠲⠀⠍⠁⠭⠊⠍⠥⠍⠀⠿⠀⠼⠉⠋⠀⠩⠊⠋⠞⠎⠶⠀⠀⠀⠎⠊⠇⠀⠠⠝⠀⠀ ⠠⠕⠏⠻⠁⠞⠊⠕⠝⠀⠠⠉⠕⠙⠑⠀⠼⠋⠋⠋⠀⠀⠠⠹⠊⠎⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠺⠀ ⠩⠊⠋⠞⠀⠮⠀⠉⠕⠝⠞⠢⠞⠎⠀⠷⠀⠮⠀⠠⠔⠤⠠⠕⠥⠞⠀⠠⠗⠑⠛⠊⠌⠻⠀⠇⠑⠋⠞⠀ ⠠⠝⠀⠏⠕⠎⠊⠞⠊⠕⠝⠎⠂⠀⠱⠻⠑⠀⠠⠝⠀⠊⠎⠀⠕⠉⠞⠁⠇⠀⠙⠊⠛⠊⠞⠎⠀ ⠼⠛⠤⠁⠁⠀⠷⠀⠮⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠘⠺⠲⠀⠀⠀⠀⠠⠗⠕⠞⠁⠞⠑⠀⠠⠠⠁⠉ ⠀⠯⠀⠠⠠⠊⠕⠀⠠⠐⠗⠀⠶⠼⠁⠉⠀⠥⠎⠑⠉⠲⠀⠍⠁⠭⠊⠍⠥⠍⠀⠿⠀⠼⠉⠋⠀ ⠩⠊⠋⠞⠎⠶⠀⠀⠀⠗⠉⠗⠀⠠⠝⠀⠀⠠⠕⠏⠻⠁⠞⠊⠕⠝⠀⠠⠉⠕⠙⠑⠀⠼⠋⠛⠉⠀⠀ ⠠⠹⠊⠎⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠺⠀⠗⠕⠞⠁⠞⠑⠀⠮⠀⠃⠊⠞⠎⠀⠷⠀⠮⠀ ⠉⠕⠍⠃⠔⠫⠀⠗⠑⠛⠊⠌⠻⠀⠐⠗⠀⠔⠀⠁⠀⠎⠬⠇⠑⠀⠗⠬⠀⠠⠝⠀ ⠏⠕⠎⠊⠞⠊⠕⠝⠎⠂⠀⠱⠻⠑⠀⠠⠝⠀⠊⠎⠀⠕⠉⠞⠁⠇⠀⠙⠊⠛⠊⠞⠎⠀⠼⠛⠤⠁⠁⠀ ⠷⠀⠮⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠘⠺⠲⠀⠀⠀⠀⠠⠗⠕⠞⠁⠞⠑⠀⠠⠠⠁⠉⠀⠯⠀ ⠠⠠⠊⠕⠀⠠⠇⠑⠋⠞⠀⠶⠼⠁⠉⠀⠥⠎⠑⠉⠲⠀⠍⠁⠭⠊⠍⠥⠍⠀⠿⠀⠼⠉⠋⠀ ⠩⠊⠋⠞⠎⠶⠀⠀⠀⠗⠉⠇⠀⠠⠝⠀⠀⠠⠕⠏⠻⠁⠞⠊⠕⠝⠀⠠⠉⠕⠙⠑⠀⠼⠋⠋⠉⠀⠀ ⠠⠹⠊⠎⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠺⠀⠗⠕⠞⠁⠞⠑⠀⠮⠀⠃⠊⠞⠎⠀⠷⠀⠮⠀ ⠉⠕⠍⠃⠔⠫⠀⠗⠑⠛⠊⠌⠻⠀⠇⠑⠋⠞⠀⠔⠀⠁⠀⠎⠬⠇⠑⠀⠗⠬⠀⠠⠝⠀ ⠏⠕⠎⠊⠞⠊⠕⠝⠂⠀⠱⠻⠑⠀⠠⠝⠀⠊⠎⠀⠕⠉⠞⠁⠇⠀⠙⠊⠛⠊⠞⠎⠀⠼⠛⠤⠁⠁⠀⠷ ⠀⠮⠀⠊⠝⠌⠗⠥⠉⠞⠊⠕⠝⠀⠘⠺⠲⠀⠀⠀⠀⠠⠩⠊⠋⠞⠀⠠⠠⠁⠉⠀⠯⠀⠠⠠⠊⠕⠀
These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.