Difference between revisions of "Courier Executerm I"
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{{infobox terminal | {{infobox terminal | ||
| manufacturer = Courier | | manufacturer = Courier | ||
| Line 5: | Line 4: | ||
| intro_year = 1969 | | intro_year = 1969 | ||
| interface = RS-232B | | interface = RS-232B | ||
| − | | | + | | baud_rates = 110, 150, 300, 600, 1200 |
| char_resolution = 40x15 | | char_resolution = 40x15 | ||
| char_matrix = 7x8 | | char_matrix = 7x8 | ||
| refresh_rate = 66 | | refresh_rate = 66 | ||
}} | }} | ||
| − | The | + | |
| − | | url=http:// | + | The '''Executerm I''' was a raster-scan video display terminal |
| + | introduced in 1969 by Courier Terminal Systems, Inc.<ref | ||
| + | name="brochure1969">{{cite web | ||
| + | | url=http://bitsavers.org/pdf/itt/courier/Executerm_I_Brochure_1969.pdf | ||
| title=Executerm I Brochure | | title=Executerm I Brochure | ||
| publisher=Courier Terminal Systems, Inc. | | publisher=Courier Terminal Systems, Inc. | ||
| date=1969 | | date=1969 | ||
| − | | accessdate= | + | | accessdate=March 1, 2026 |
| − | }}</ref> | + | }}</ref> It was designed as a self-contained display terminal for |
| + | connection to time-sharing systems and general-purpose computers using | ||
| + | standard serial interfaces.<ref name="brochure1969" /> | ||
| + | |||
| + | ==Design and construction== | ||
| + | |||
| + | The Executerm I employed a cathode-ray tube (CRT) display refreshed at | ||
| + | 66 Hz.<ref name="brochure1969" /> Characters were formed in a 7 x 8 dot | ||
| + | matrix and arranged on the screen in a 40 column by 15 line format, | ||
| + | providing a total display capacity of 600 characters.<ref | ||
| + | name="brochure1969" /> This configuration reflects the constraints of | ||
| + | contemporary video memory and timing circuitry typical of early raster | ||
| + | terminals.<ref name="brochure1969" /> | ||
| + | |||
| + | The terminal incorporated an integrated keyboard within a single | ||
| + | console enclosure.<ref name="brochure1969" /> Display memory was | ||
| + | continuously refreshed to maintain a stable image at the specified | ||
| + | refresh rate.<ref name="brochure1969" /> Character generation was | ||
| + | implemented using solid-state logic, consistent with late-1960s | ||
| + | terminal design practice.<ref name="brochure1969" /> | ||
| + | |||
| + | ==Communications== | ||
| + | |||
| + | The Executerm I provided an asynchronous serial interface conforming to | ||
| + | RS-232B signal conventions.<ref name="brochure1969" /> Selectable | ||
| + | transmission speeds of 110, 150, 300, 600, and 1200 baud enabled | ||
| + | operation over dial-up or leased telephone circuits when used in | ||
| + | conjunction with a compatible modem.<ref name="brochure1969" /> The | ||
| + | terminal was marketed for use with remote time-sharing services as well | ||
| + | as local computer installations equipped with compatible serial | ||
| + | ports.<ref name="brochure1969" /> | ||
| + | |||
| + | ==Character set and operation== | ||
| + | |||
| + | The terminal supported upper-case alphabetic characters, numerals, and | ||
| + | standard punctuation symbols appropriate to business and scientific | ||
| + | computing applications of the period.<ref name="brochure1969" /> It was | ||
| + | an upper-case-only device. Screen control and cursor positioning were | ||
| + | accomplished through control characters transmitted by the host | ||
| + | system.<ref name="brochure1969" /> | ||
| + | |||
| + | ==Historical context== | ||
| + | |||
| + | Introduced during the formative period of commercial video display | ||
| + | terminals, the Executerm I represents an early raster terminal offered | ||
| + | as an alternative to electromechanical teleprinters. By providing a | ||
| + | reusable CRT display and higher data rates than most mechanical | ||
| + | devices, such terminals reduced consumable costs and supported more | ||
| + | efficient interactive time-sharing workflows.<ref | ||
| + | name="brochure1969" /> | ||
| + | |||
| + | ==[[Manx]]== | ||
| + | |||
| + | * {{manx details|130,18738|Executerm I Brochure}} | ||
{{references}} | {{references}} | ||
Latest revision as of 03:54, 2 March 2026
| Courier Executerm I | |
|---|---|
| Manufacturer | Courier |
| Model | Executerm I |
| Lifetime | |
| Introduced | 1969 |
| Communication | |
| Interface | RS-232B |
| Baud Rates | 110, 150, 300, 600, 1200 |
| Display | |
| Refresh Rate | 66 Hz |
| Character Modes | |
| Resolution | 40x15 |
| Matrix | 7x8 |
The Executerm I was a raster-scan video display terminal introduced in 1969 by Courier Terminal Systems, Inc.[1] It was designed as a self-contained display terminal for connection to time-sharing systems and general-purpose computers using standard serial interfaces.[1]
Contents
Design and construction
The Executerm I employed a cathode-ray tube (CRT) display refreshed at 66 Hz.[1] Characters were formed in a 7 x 8 dot matrix and arranged on the screen in a 40 column by 15 line format, providing a total display capacity of 600 characters.[1] This configuration reflects the constraints of contemporary video memory and timing circuitry typical of early raster terminals.[1]
The terminal incorporated an integrated keyboard within a single console enclosure.[1] Display memory was continuously refreshed to maintain a stable image at the specified refresh rate.[1] Character generation was implemented using solid-state logic, consistent with late-1960s terminal design practice.[1]
Communications
The Executerm I provided an asynchronous serial interface conforming to RS-232B signal conventions.[1] Selectable transmission speeds of 110, 150, 300, 600, and 1200 baud enabled operation over dial-up or leased telephone circuits when used in conjunction with a compatible modem.[1] The terminal was marketed for use with remote time-sharing services as well as local computer installations equipped with compatible serial ports.[1]
Character set and operation
The terminal supported upper-case alphabetic characters, numerals, and standard punctuation symbols appropriate to business and scientific computing applications of the period.[1] It was an upper-case-only device. Screen control and cursor positioning were accomplished through control characters transmitted by the host system.[1]
Historical context
Introduced during the formative period of commercial video display terminals, the Executerm I represents an early raster terminal offered as an alternative to electromechanical teleprinters. By providing a reusable CRT display and higher data rates than most mechanical devices, such terminals reduced consumable costs and supported more efficient interactive time-sharing workflows.[1]
