4051: Difference between revisions

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===Manuals===
===Manuals===
* [http://bitsavers.trailing-edge.com/pdf/tektronix/405x/ 4050 series manuals] @ bitsavers
* [http://bitsavers.trailing-edge.com/pdf/tektronix/405x/ 4050 series manuals] @ bitsavers
* [[Media:Tek_4051_basicref.pdf|Tektronix 4051 BASIC Reference Guide (OCR, PDF)]]
===Museums===
===Museums===
* [http://www.tekmuseum.com/tek-museum_009.htm 4051 @ tekmuseum.com]
* [http://www.tekmuseum.com/tek-museum_009.htm 4051 @ tekmuseum.com]
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* [https://github.com/mmcgraw74/Tektronix-4051-4052-4054-Program-Files Tektronix 4051/4052/4054 Program Files] (GitHub repository)
* [https://github.com/mmcgraw74/Tektronix-4051-4052-4054-Program-Files Tektronix 4051/4052/4054 Program Files] (GitHub repository)
* [http://www.bitsavers.org/pdf/tektronix/405x/fiche/4051_Firmware/ 4051 firmware listings (microfiche scans)] @ bitsavers
* [http://www.bitsavers.org/pdf/tektronix/405x/fiche/4051_Firmware/ 4051 firmware listings (microfiche scans)] @ bitsavers
===Miscellaneous===
* [https://webzoom.freewebs.com/henry0077/Scan529.jpg Tek 4051 aboard a US Navy SSBN submarine]


==Pictures==
==Pictures==

Revision as of 22:10, 8 April 2021

The Tektronix 4051 is a graphics-capable desktop microcomputer produced by Tektronix in the late 1970s through the early 1980s. The display is similar to the Tektronix 4010 terminal, using a direct-view storage CRT display (like an analog storage scope) to avoid the need for video RAM.

An all-in-one design, the 4051 includes display, keyboard, CPU and a 300 kByte DC300 quarter-inch cartridge tape drive in a single desktop case, and includes a GPIB interface. A simple operating system and BASIC interpreter are stored in ROM.

The storage tube display allows the screen to retain images drawn to it, eliminating the need for frame-buffer memory, and allowing the resolution to be as high as the display hardware can handle - logical coordinates are 1024 by 1024 of which the physical screen displays 1024 by 780. This type of display does not require a raster buffer memory, so all memory can be dedicated to programs and data.

The 4051 is based on an 8-bit Motorola 6800 CPU running at 1 MHz, and normally shipped with 8 kB of RAM expandable to 32 kB using 8 kB modules.

The remaining 32 kB of address space is reserved for ROM, which can be expanded using one or two external ROM cartridges of 8 kB each. The ROM includes six character sets and an extended dialect of BASIC including various vector drawing commands.

The 4051 was released in 1975 for the base price of $5,995 (2020 value $28,960). Adding the optional RS-232 interface allowed it to emulate a Tektronix 4012 terminal.

Key designer of the 4051 was Hiro Moriyasu.

See Also

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General Information

Manuals

Museums

Videos

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Pictures