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|tools           = [[3D printers]], [[Soldering irons]]
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[[Category:Projects]]
[[Category:Information]]

=Introduction=
A computer is a machine that can be programmed to carry out sequences of arithmetic or logical operations automatically. Modern computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. A computer system is a "complete" computer that includes the hardware, operating system (main software), and peripheral equipment needed and used for "full" operation. This term may also refer to a group of computers that are linked and function together, such as a computer network or computer cluster. 

=Challenges=

=Approaches=
<youtube>XFrJcjCbCA8</youtube><br>

* [https://www.thingiverse.com/thing:4846997 Callisto 2 - Fully Printable Retro Computer]

==Hardware comparison==
{| class="wikitable"
|-
! SBC !! description | Hardware
|-
|[https://www.raspberrypi.org/products/raspberry-pi-4-model-b/ Raspberry Pi 4] || Super inexpensive, ubiquitous, widely supported.
|-
|[https://www.cnx-software.com/2017/03/13/turtle-board-is-a-raspberry-pi-2-like-fpga-board-for-j-core-j2-open-source-superh-sh2-soc/ Turtle board] || Fully open [https://j-core.org/index.html j-core] SH2 compatible SoC in Raspberry Pi compatible form factor. || https://www.crowdsupply.com/radiona/ulx3s
|-
|[https://github.com/SpinalHDL/SaxonSoc SaxonSoC] || [https://twitter.com/lawriegriffiths/status/1238030666719207425 Fully open RISC-V compatible SoC] in microcontroller or application processor configurations || https://www.crowdsupply.com/radiona/ulx3s
|-
|[https://www.contrib.andrew.cmu.edu/~somlo/BTCP/ A Trustworthy, Free (Libre), Linux Capable, Self-Hosting 64bit RISC-V Computer] || ECP5 FPGA based FOSS computer [https://arxiv.org/pdf/1903.10407.pdf FPGA toolchain]
|}


=== References ===
  * [[https://en.wikipedia.org/wiki/Computer|Wikipedia: Computer]]
  * [[http://internet-in-a-box.org/|Internet in a box]]
  * [[https://back7.co/home/raspberry-pi-recovery-kit|Raspberry Pi Recovery kit]]
  * [[https://www.hackster.io/news/dr-jeroen-vleggaar-builds-some-custom-oled-displays-using-a-3d-printer-as-a-lithography-tool-5f6911b9acfa|Dr. Jeroen Vleggaar Builds Some Custom OLED Displays — Using a 3D Printer as a Lithography Tool]]
  * [[https://teenage.engineering/products/computer-1|Teenage.Engineering: Computer 1]]
  * [[https://mntre.com/|MNT Reform open laptop]]
  * [[https://www.nature.com/articles/s41586-021-03625-w|A natively flexible Arm M0]]
  * [[http://dmitry.gr/?r=05.Projects&proj=29.%20eInk%20Price%20Tags|Dmitry.gr: Hacking eInk Price Tags]](useful information on interfacing with eink displays)
  * [[https://www.thingiverse.com/thing:4687836|Thingiverse: Ethernet | RJ45 clip to secure/repair/fix broken tab]]
  * [[https://docs.hackerfab.org/hacker-fab-space|https://docs.hackerfab.org/hacker-fab-space]]