Difference between revisions of "IBM 1050"
m (cite the book, not the review of the book) |
m (update from gemini) |
||
| Line 5: | Line 5: | ||
| intro_month = March | | intro_month = March | ||
| intro_year = 1963 | | intro_year = 1963 | ||
| − | | baud_rates = 75, | + | | baud_rates = 75, 134.5 |
}} | }} | ||
| − | The IBM 1050 Data Communications System was introduced on March | + | The IBM 1050 Data Communications System was introduced on March 12, |
| + | 1963.<ref name="Pugh1991">{{cite book | ||
| last1 = Pugh | | last1 = Pugh | ||
| first1 = Emerson W. | | first1 = Emerson W. | ||
| Line 20: | Line 21: | ||
| page = 782 | | page = 782 | ||
| isbn = 0262517205 | | isbn = 0262517205 | ||
| + | }}</ref> It was a modular teleprinter system designed for | ||
| + | communication with IBM computers or other 1050 systems over | ||
| + | communication lines.<ref name="A24-3020">{{cite web | ||
| + | | url = http://bitsavers.org/pdf/ibm/1050/A24-3020-3_1050_System_Operation_Reference_Manual_196501.pdf | ||
| + | | title = IBM 1050 Data Communication System: System Operation Reference Manual | ||
| + | | author = IBM | ||
| + | | date = 1965 | ||
| + | | accessdate = 2026-02-26 | ||
}}</ref> | }}</ref> | ||
| − | A typical 1050 system consisted of a 1051 control unit (big black box underneath the desk in the picture), and a 1052 keyboard/printer. This could be expanded with paper tape reader(1054) and punch(1055) or a card reader/punch(1442). | + | A typical 1050 system consisted of a 1051 control unit (big black box |
| + | underneath the desk in the picture), and a 1052 keyboard/printer. This | ||
| + | could be expanded with paper tape reader(1054) and punch(1055) or a | ||
| + | card reader/punch(1442). | ||
| − | On many IBM System 360 mainframes, a bare 1052 keyboard/printer was hard-wired into the system for use as the console terminal. | + | == Architecture == |
| + | The system operated in a half-duplex, asynchronous (start-stop) mode. | ||
| + | Primary technical manuals specify the standard transmission speeds as | ||
| + | 75 bps and 134.5 bps.<ref name="GA27-2703">{{cite web | ||
| + | | url = http://bitsavers.org/pdf/ibm/2703/GA27-2703-2_2703_Transmission_Ctl_Component_Descr_Sep70.pdf | ||
| + | | title = IBM 2703 Transmission Control Component Description | ||
| + | | author = IBM | ||
| + | | date = 1970 | ||
| + | | accessdate = 2026-02-26 | ||
| + | }}</ref> | ||
| + | |||
| + | The 134.5 bps rate was engineered to match the mechanical timing of | ||
| + | the IBM Selectric mechanism. Each character was transmitted using a | ||
| + | 9-bit frame consisting of one start bit, six data bits using the | ||
| + | IBM Paper Tape Transmission Code (PTTC/BCD), one parity bit, and one | ||
| + | stop bit.<ref name="GA27-2703"/> This timing allowed for a continuous | ||
| + | print speed of 14.8 characters per second.<ref name="A24-3020"/> | ||
| + | |||
| + | The 1050 did not utilize the RS-232 interface standard; instead, it | ||
| + | connected to communication lines via internal IBM Line Adapters. | ||
| + | These adapters allowed the system to operate on common-carrier | ||
| + | switched networks or private leased lines, often in a multipoint | ||
| + | configuration where multiple terminals shared a single line through | ||
| + | polling and addressing.<ref name="A24-3020"/> | ||
| + | |||
| + | On many IBM System 360 mainframes, a bare 1052 keyboard/printer was | ||
| + | hard-wired into the system for use as the console terminal. | ||
| + | |||
| + | == Documentation == | ||
| + | * [http://bitsavers.org/pdf/ibm/1050/A24-3020-3_1050_System_Operation_Reference_Manual_196501.pdf IBM 1050 Data Communication System: System Operation Reference Manual] | ||
| + | * [http://bitsavers.org/pdf/ibm/2703/GA27-2703-2_2703_Transmission_Ctl_Component_Descr_Sep70.pdf IBM 2703 Transmission Control Component Description] | ||
{{References}} | {{References}} | ||
| Line 33: | Line 75: | ||
[[Category:Print]] | [[Category:Print]] | ||
[[Category:1963]] | [[Category:1963]] | ||
| − | |||
Latest revision as of 19:47, 26 February 2026
| IBM 1050 | |
|---|---|
 | |
| Manufacturer | IBM |
| Model | 1050 |
| Lifetime | |
| Introduced | March, 1963 |
| Communication | |
| Baud Rates | 75, 134.5 |
The IBM 1050 Data Communications System was introduced on March 12, 1963.[1] It was a modular teleprinter system designed for communication with IBM computers or other 1050 systems over communication lines.[2]
A typical 1050 system consisted of a 1051 control unit (big black box underneath the desk in the picture), and a 1052 keyboard/printer. This could be expanded with paper tape reader(1054) and punch(1055) or a card reader/punch(1442).
Architecture
The system operated in a half-duplex, asynchronous (start-stop) mode. Primary technical manuals specify the standard transmission speeds as 75 bps and 134.5 bps.[3]
The 134.5 bps rate was engineered to match the mechanical timing of the IBM Selectric mechanism. Each character was transmitted using a 9-bit frame consisting of one start bit, six data bits using the IBM Paper Tape Transmission Code (PTTC/BCD), one parity bit, and one stop bit.[3] This timing allowed for a continuous print speed of 14.8 characters per second.[2]
The 1050 did not utilize the RS-232 interface standard; instead, it connected to communication lines via internal IBM Line Adapters. These adapters allowed the system to operate on common-carrier switched networks or private leased lines, often in a multipoint configuration where multiple terminals shared a single line through polling and addressing.[2]
On many IBM System 360 mainframes, a bare 1052 keyboard/printer was hard-wired into the system for use as the console terminal.
Documentation
- IBM 1050 Data Communication System: System Operation Reference Manual
- IBM 2703 Transmission Control Component Description
References
- ↑ Pugh, Emerson W.; Johnson, Lyle R.; Palmer, John H. (1991). IBM's 360 and Early 370 Systems. Cambridge, Mass.: MIT Press. p. 782. ISBN 0262517205.
- ↑ 2.0 2.1 2.2 IBM (1965). "IBM 1050 Data Communication System: System Operation Reference Manual". http://bitsavers.org/pdf/ibm/1050/A24-3020-3_1050_System_Operation_Reference_Manual_196501.pdf. Retrieved 2026-02-26.
- ↑ 3.0 3.1 IBM (1970). "IBM 2703 Transmission Control Component Description". http://bitsavers.org/pdf/ibm/2703/GA27-2703-2_2703_Transmission_Ctl_Component_Descr_Sep70.pdf. Retrieved 2026-02-26.
