File:TTYanswserbackMechanism.jpg
Original file (712 × 805 pixels, file size: 213 KB, MIME type: image/jpeg)
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Summary edit
DescriptionTTYanswserbackMechanism.jpg |
English: Rear view of a Teletype Model 33 ASR showing the answer-back drum, the brown spined cylinder at the left center of the image. By breaking off spines of this drum. the message sent in response to the ASCII ENQ character could be encoded. The drum operates like a music box mechanism, with the comb of metal fingers in front of the drum reading out the message as the drum rotates. |
Date | |
Source | Own work |
Author | Douglas W. Jones |
Licensing edit
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. | |
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:21, 26 November 2013 | 712 × 805 (213 KB) | Douglas W. Jones (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | FUJIFILM |
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Camera model | FinePix S3100 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/3.2 |
ISO speed rating | 100 |
Date and time of data generation | 12:15, 25 November 2013 |
Lens focal length | 14.2 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Digital Camera FinePix S3100 Ver1.00 |
File change date and time | 12:15, 25 November 2013 |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 12:15, 25 November 2013 |
Image compression mode | 2 |
APEX shutter speed | 6 |
APEX aperture | 3.4 |
APEX brightness | 0.05 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 4,255 |
Focal plane Y resolution | 4,255 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Sharpness | Normal |
Subject distance range | Unknown |