Tektronix
4912
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What it is
The Tektronix 4912 is a cassette tape storage unit designed for use with Tektronix 4010 series computer terminals. The unit records the data stream sent to the terminal, allowing the display to be recreated locally from the recorded data.[1]
Where it fits in the process flow
For storage, the systems could write out the data stream of characters as they were received from the host, allowing them to be played back locally to recreate the display.[1]
What do the numbers mean?
Optics & imaging1
Control & software2
Configuration & options4
Vintage & configurations
- 1972Production start[1]
Released in 1972 as the first model in the 4010 series.
What replaced it?
Related models
- siblingTektronix 4923— Cassette tape storage option for 4010 seriessource[1]
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
No research found yet — worked with this tool? Share what you know.
Frequently asked questions
What storage medium does the Tektronix 4912 use?
The Tektronix 4912 uses cassette tapes.[1]
What mechanism is the 4912 based on?
The 4912 is based on a Sykes TT120 cassette tape mechanism.[1]
For what purpose was the 4912 used?
The 4912 was used to capture the data stream sent to the terminal and play it back locally to recreate the display.[1]
What other storage options were available in the same series?
Other storage options included the 4911 punch tape and the 4923 digital tape system.[1]
Was the 4912 used with the Tektronix 4010 series?
Yes, the 4912 was a storage option for the Tektronix 4010 series terminals.[1]
Not publicly documented
The following facts about the 4912 are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented variants, configuration options, or revision breakpoints of the 4912 are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the 4912 are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the 4912 are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 4912 is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the 4912 are on record.
Answerable by: an OEM parts catalog or a service engineer
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (1)Every fact above is drawn from these public sources
- [1]en.wikipedia.org — en.wikipedia.orgen.wikipedia.org
Last updated Sep 21, 2026.