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| author | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 21:07:28 -0400 |
|---|---|---|
| committer | Jacob McDonnell <jacob@jacobmcdonnell.com> | 2026-04-25 21:07:28 -0400 |
| commit | 711594636704defae873be1a355a292505585afd (patch) | |
| tree | 59ee13f863830d8beba6cfd02bbe813dd486c26f /static/v10/man4/pc.4 | |
| parent | 3258a063c1f189d7b019e40e525b46bef9b9a7b1 (diff) | |
docs: Added UNIX V10 Manuals
Diffstat (limited to 'static/v10/man4/pc.4')
| -rw-r--r-- | static/v10/man4/pc.4 | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/static/v10/man4/pc.4 b/static/v10/man4/pc.4 new file mode 100644 index 00000000..461788ea --- /dev/null +++ b/static/v10/man4/pc.4 @@ -0,0 +1,38 @@ +.pa 1 +.he 'PC (IV)'3/15/72'PC (IV)' +.ti 0 +NAME pc -- PC-11 paper tape reader/punch +.sp +.ti 0 +DESCRIPTION ppt___ +refers to the PC-11 paper tape reader or punch, +depending on whether it is read or written. + +When ppt___ is opened for writing, a 100-character leader +is punched. +Thereafter each byte written is punched on +the tape. No editing of the characters +is performed. +When the file is closed, a 100-character trailer is punched. + +When ppt___ is opened for reading, the process +waits until tape is placed in the reader and the reader +is on-line. +Then requests to read cause the characters read +to be passed back to the program, again without +any editing. +This means that several null leader characters +will usually appear at the beginning of the file. +Likewise several nulls are likely to appear at the end. +End-of-file is generated when the tape runs out. + +Seek calls for this file are meaningless. +.sp +.ti 0 +FILES /dev/ppt +.sp +.ti 0 +SEE ALSO -- +.sp +.ti 0 +BUGS -- |