The Billings Computer

March 4, 2026  •  EPISODE 300

Who created the first personal computer? In this episode of Science LIVE with Roger Billings, explore the history of silicon chip design and the breakthroughs that made modern computing possible. Learn about the Intel 4004, the world’s first commercial microprocessor, the Intel 800, and inventor Federico Faggin, whose work helped make the first all-in-one personal computer a reality. Discover how these early innovations paved the way for the powerful computers we use today.

About DrB

Dr. Roger Billings is a visionary innovator whose work has touched the lives of millions of students and transformed the landscape of education. Widely known as “DrB” to the countless kids who benefit from his groundbreaking Acellus learning system, Dr. Billings has dedicated his life to advancing education through technology. As part of DrB’s lifelong commitment to supporting education, Science LIVE was launched as a way to “give back” by mentoring students in conjunction with the Roger Billings Scholarship Program.


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About the Roger Billings Scholarship Program »

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3,119 Comments

  1. Ava

    It is amazing to see how much our technology has changed over the years.

    Reply
  2. Josiah

    I like how Billings made the 1 all in one personal computer.

    Reply
  3. Chelsea

    I like 3-D printers.

    Reply
  4. Amelia

    Science is so neat! We have a 3d printer at home, and it was cool to learn about 3d printers!!

    Reply
  5. Miangel

    Tacossss

    Reply
  6. Brynleigh

    I love science lives

    Reply
  7. Alma

    Thank you Acellus!

    Reply
  8. Channing

    This was my 1st video, this was very interesting. This was a nice spin on learning the history of computers.

    Reply
  9. Aiyana

    I never knew the Dr.Billings created a computer, that’s really cool! And I also like how they showed everything that was inside of his computer.

    Reply
  10. Taeyah

    3D printing is an interesting concept!

    Reply
  11. Kamiya

    Very interesting live! Good morning everyone!

    Reply
  12. Annalynn

    Thank you so much for this lesson I really liked this one!

    Reply
  13. Liliana

    3d printers are cool!

    Reply
  14. Lauren

    I like the music of this video. And the campfire section is really cute! 🥰

    Reply
  15. Amanda

    It is so cool to see how far technology has advanced.

    Reply
  16. Miguel

    There’s a lot of things that can go wrong when we printing.

    Reply
  17. Latifah

    the protegets are sooo funny!!! thanks big B for all you do 🙂

    Reply
  18. Miguel

    is very nice to know about computer

    Reply
  19. Lucy

    Great info about the computer!

    Reply
  20. Lincoln

    i love science live!!!!!

    Reply
  21. Kahleen

    How long did it take for them to do it and the right time?

    Reply
  22. Emma

    the history was awesome and a lot of fun

    Reply
  23. Logan

    I can’t wait to learn about micro controllers

    Reply
  24. Miles

    i liked the 3d printer

    Reply
  25. Theodore

    3D printers are so cool! I wish I had one!

    Reply
  26. Payton

    Thank you so much. The history of the computer is always so interesting.

    Reply
  27. Mason

    3D printers are cool

    Reply
  28. Shane

    I wish i had a 3D printer.

    Reply
  29. Emma

    Science is so good 😊

    Reply
  30. Katelyn

    i loved this weeks science live

    Reply
  31. Jamie

    I loved this!

    Reply
  32. Grayson

    another great video like normal!

    Reply
  33. Avneet

    And the proteges strike again!
    Saw them eatin- i mean investigating tacos at Taco Bell.

    Reply
  34. William

    Loved the stuff about old computers another great stream!

    Reply
  35. Carter

    It was awesome today thanks from Maine

    Reply
  36. Jonah

    I can’t believe it takes so many transistors to run a computer.

    Reply
  37. Kyleigh

    I really loved dr johns speech this week the 3D stuff was amazing and very cool .

    Reply
  38. Antonella

    Great episode! It was really neat to learn about the microprocessor! It was awesome when he put the quote on the wall! Thank you all, have a nice day!

    Reply
  39. Brooklynn

    I love science!

    Reply
  40. Sameer

    Awesome video!

    Reply
  41. George

    this was so cool

    Reply
  42. Mason

    3d printing is so cool

    Reply
  43. Marcus

    This one was cool.

    Reply
  44. Mackayla

    The way computers have changed so much over the years and continue to constantly change, is so interesting. Makes me wonder when we’re older, what computers will look like.

    Reply
  45. Brayden

    I love science live.

    Reply
  46. Gunner

    Wow! 300th episode. So cool!

    Reply
  47. Mielo

    300 episodes is crazy

    Reply
  48. Alisha

    hi so when is the next episode of science live coming up

    Reply
  49. Abigail

    this live was interesting.. i really liked the highlight of technological advancements. it crazy to think that what we had 10 years ago is a whole different world than what we have now

    Reply
  50. Kadin

    Comment I love the new history of computers and I’m excited for what comes in the future

    Reply
  51. Luc

    Where can you find those micro controllers?

    Reply
  52. Bethany

    3D printers are so cool, I really want one

    Reply
  53. Landon

    3d printers are cool.

    Reply
  54. Lillian

    I love learning about computers!

    Reply
  55. Rhiannon

    Science live is so cool!

    Reply
  56. Michael

    Billings computers are very cool.)

    Reply
  57. Michael

    The Billings computer is a interest story.

    Reply
  58. Annabelle

    I love science.

    Reply
  59. Olivia

    The jellyfish galaxy is so pretty!

    Reply
  60. Riddick

    It’s incredible that they can make a beam of light that precise that it can instantly make intricate objects in that resin.

    Reply
  61. Jordan

    R51 is so funny.

    Reply
  62. Joe

    I enjoyed this video thank you!!!

    Reply
  63. James

    so cool we are able to 3d print computers

    Reply
  64. Bryson

    Love this from SC

    Reply
  65. Wiranzen

    Fun fact, the ‘links’ of the starlink satellites are actually a Japanese traditional origami and a decoration. My minds a bit hazy so check this info up please.

    Reply
  66. Daevon

    This is cool!

    Reply
  67. Will

    Did you ever think that things would get this advanced so quickly?

    Reply
  68. Emree

    I wonder if that 3D printer could make my dog. Learning about the Billings computer was so fun!

    Reply
  69. Mason

    I though learning about the z80, 8080, and 4004 was nicer-51 was funny tooo

    Reply
  70. Shalymar

    I like the Jellyfish Galaxy.

    Reply
  71. Evelyn

    hey mr. B i am a huge fan of you and ms.p

    Reply
  72. Trinity

    I learned a lot of knowledge, I got educated, and now I know that I use math for a lot of stuff.

    Reply
  73. Kennedy

    Math is my favorite subject! I have learned so much from acellus. Blink the bee is so cute!

    Reply
  74. Alexis

    The history of computers is always such an intriguing subject, always a joy to learn about.

    Reply
    • Brendan

      same i always love learning

      Reply
    • Cameron

      Love watching Science Live!!

      Reply
    • Olivia

      wow 300 already!!

      Reply
    • Makenna

      So amazing I love this ! I love learning about the history of computers!

      Reply
    • Liam

      Technology advances so fast.

      Reply
    • Liam

      fr 3d printers are so cool I love mine

      Reply
    • Hannah

      I love watching science live every week!!!

      Reply
  75. Abigail

    3D printers are cool

    Reply
    • Lillian

      Science live is so cool!😎

      Reply
    • Logan

      I know I love science like awesome.

      Reply
  76. Khai-minh

    300th episode!!! 🥳 I always love watching Science Live every week.

    Reply
    • Leyah

      Same here it’s amazing

      Reply
    • Jude

      Jude. Science always interesting to watch especially about sharks

      Reply
    • Daisy

      Yesssssss 🩷❤️🩷❤️🩷❤️🩷❤️

      Reply
  77. Avery

    3d printers have come so far! I honestly want a little simple one for fun!

    Reply
  78. Austin

    I liked the taco computer!

    Reply
  79. Jensyn

    its unreal how far innovation has come.

    Reply
  80. Charlotte

    I think it is cool how much we have advanced within a 50 year period. My mother old me about when she was a child and she told me about the fact that tv’s were uncommon and just big boxes with screens, and phones were attached to the wall, now we have smart phones, computers, and 50 in. tv’s. Crazy!!!

    Reply
  81. James

    Thanks Dr. John for the amazing news about 3d printing and how its getting a lot faster.

    Reply
  82. Sadie

    I love how encouraging you are to Frederico, as coming from a most brilliant man to another and his impact on computers. Just stand s out to me today!

    Reply
  83. Austin

    The history of computers really helped me learn how advanced we are now! The vacuum tube computers were so weird looking but it’s cool to know that’s where computers started. All the topics covered today were so interesting.

    Reply
  84. Autumn

    the jellyfish galaxy was my favorite! its so beautiful and i cant believe it has taken 8.5 billion years for its light to finally reach us.

    Reply
  85. Isabelle

    These science lives never let down! I always end up walking away from the videos with so much information. Just the evolution of computers shows how quickly things can change.

    Reply
  86. Samuel

    The part about computer history was really cool. I’ve heard and seen the general history of them as far as size and advancement goes, but it still is super interesting when I see or hear about it. I don’t know why, but I just think it’s really fun and interesting.

    Reply
    • Ben

      I liked where they took apart a computer. I’m going to take apart a computer.

      Reply
  87. Emma

    I though learning about the z80, 8080, and 4004 was noice r-51 was funny tooo

    Reply
  88. Cooper

    R-51 Is the best!

    Reply
  89. Ashlyn

    I really like the protégés section! It’s so funny and makes learning easy. Loved hearing about the history of computers!

    Reply
  90. Abigail

    It is amazing how frederico faggin was able to come up with such revolutionary products and be able to see it’s success and live to create even more!

    Reply
  91. Egin

    I really enjoyed this Science Live session. It was both fun and interesting to watch. The 3D-printed squid was especially impressive—seeing it created almost instantly felt like watching a sci-fi movie! It really showed how far printing technology has come.

    Reply
  92. Julienne

    R51 is hilarious; I love watching his parts

    Reply
  93. Kendrick

    It was interesting learning about Dr billings and Frederico

    Reply
  94. Kayden

    Very interesting. I love you you make this content very engaging for all ages!

    Reply
  95. Avyon

    We’ve come really far in technology in the past 40+ years.

    Reply
  96. Amelia

    Very interesting to learn about computers, especially since we spend so much time on them today! Thank you!

    Reply
  97. Charles

    Faggin’s Z80 computer chip and Dr. Billings computer, changed modern computer technology is such a profound way.

    Reply
  98. Christin

    I love Acellus

    Reply
  99. Jonathan

    what made you want to create a computer

    Reply
    • Liam

      Really good video

      Reply
  100. Britney

    Learning how computers were in the old times and how they are now is so informing and very interesting. I loved learning about the old billings computer and seeing it get torn apart was really cool. The Jellyfish Galaxies were so beautiful and colorful. Amazing episode!

    Reply
  101. Ayva

    The size of that first computer was crazy!

    Reply
  102. Britney

    Learning about the build of the computer and how it has changed and evolved since then was crazy. I loved watching the Old Bilings computer get torn apart and to know that it was the first one. Also the jellyfish galaxies were really breathtaking. Thank you for this episode!

    Reply
  103. Juan

    I LOVE SCIENCE LIVE

    Reply
  104. David

    300th episode!

    Reply
  105. Joelle

    I really enjoyed the science live, and last weeks proteges were very interesting. I like it when they include the inventioneers.

    Reply
  106. Avery

    It’s so cool how its the 300th episode, you guys have come so far!

    Reply
  107. Jezrah

    Federico Faggin improved computer chips and helped create the Intel 4004 at Intel.

    Reply
  108. Lauren

    My Father is in computers, and he talks about them often. I love them, and love to work with them too. Thanks for sharing this.

    Reply
    • Veronica

      I am glad for your dad Lauren.

      Reply
  109. Lena

    why wouldn’t you keep the very first billings computer and take apart a computer that is a duplicate of it from the same time and keep the real first one as an artifact? I still think it was very enjoyable watching you take it apart though.

    Reply
  110. Jetnipit

    I liked when they took apart the bllings computer, and i don’t know why, but r51 was so funny today! Also congrats for the 300th episode!

    Reply
  111. Evie

    Taking apart the old Billings computer was interesting and cool to see. Especially since it was the first one.

    Reply
  112. Hamza

    Enjoyed this content in today science live I LOVE IT

    Reply
  113. Megan

    Dr. Billings has many fascinating and extremely impressive achievements!

    Reply
  114. Angelique

    I really enjoyed learning about the early computers and how technology has changed over time. It’s amazing to think that computers used to take up entire rooms, and now we can hold powerful ones in our hands. The part about the Billings computer and the innovations like 3D printing was really interesting. Great video!

    Reply
  115. Schalk

    Doctor Billings is an inspiration.

    Reply
  116. Andrii

    It was interesting to learn the first computers. Is there a museum with them?

    Reply
  117. Viachaslau

    Taking apart the original Billings Computer really puts into perspective how drastically our technology has advanced. Hearing the breakdown of those old voltage controllers, transistors, and grooves makes you appreciate the engineering of the past.

    Reply
  118. Kiryl

    Happy 300th episode! Only Dr. Billings could make the evolution of hardware this fascinating. The story about copying a piece of scrap metal because everyone assumed it was a brilliant engineering tactic is exactly the kind of tech history you don’t find in textbooks!

    Reply
  119. Micah

    I found the jellyfish galaxy very cool

    Reply
  120. Daleen

    I LOVED the thing about the 3D printing, it was awesome

    Reply
  121. Tyler

    My mom let me take apart a laptop that didn’t work anymore. It’s wild how those little parts work together.

    Reply
  122. Inbal

    It’s so interesting! Watching acellus live is the best part of my week!

    Reply
  123. Dylan

    I liked how Dr. John explained various subjects of tech so eloquently!

    Reply
  124. Preston

    I loved the explanation on why AI hallucinates, AIs really are just the modern version of spamming the auto-complete on your phone

    Reply
  125. Benjamin

    I really liked learning about the 3d printer. My mom wants to buy one and she was really excited to watch this video with me and learn about it and about computers.

    Reply
  126. Nigel

    What challenges did Billings face while developing the Billings Computer?

    Reply
  127. Katrell

    I liked seeing inside the computer like that!

    Reply
  128. Tyler

    Really interesting switching up the format like this, it was kind of startling how fast the beginning went! I like the new structure though! Straight to the point.

    Reply
  129. Dylan

    I like how Dr. John explained various tech aspects, like 3D printing processes, and others!

    Reply
  130. Kingston

    My dad has a 3D printer and we have so much fun making things with it.

    Reply
  131. Kaitlyn

    thank you for always giving us an entertaining live stream every week! always looking forward to learning more from Acellus.

    Reply
  132. Maiah

    I genuinely enjoyed watching this Acellus Live session. The lesson was engaging and clearly explained the topic, which made it easy to follow and understand. Overall, it was a valuable learning experience that I appreciated.

    Reply
  133. Kassidy

    Every week the episodes keep getting more interesting!

    Reply
  134. Liam

    I wonder how much computers will change in another 50 years!

    Reply
  135. Matthew

    why dont we just make big 3d printers and print big buildings

    Reply
  136. Spencer

    It’s so cool 😎 Ai is so great 😃 we should have a course about Ai technology use. 🥹

    Reply
  137. Olaaloa

    The part about artificial intelligence was very informative and good to know and remember.

    Reply
  138. Harmony

    History on computers…it has advanced so much from years ago. I love learning new things each week from you guys. You all rock on teaching new topics all the time. It’s very weird looking in the past to know where computers actually where back in the day to where it is now. Thank you for teaching us all about the computers.

    Reply
  139. Liam

    I liked the joke about what kind of tea is hard to swallow. Also the fact that a computer chip was that small in that time, is exrtaodinary.

    Reply
  140. Nguyen

    Wow, seeing how the Z80 microprocessor changed the game really puts into perspective how far we’ve come from those first room-sized machines!!

    Reply
  141. David

    Awesome episode! I really enjoyed the Roger Billings computer part!!

    Reply
  142. Moriah

    Thank you! Congratulations to the 300th episode!

    Reply
  143. Ryder

    I Love Acellus

    Reply
  144. Chloe

    It’s amazing how people thought to create computers. Learning about Dr. Billings computer has been fascinating! Without computers life would be a-lot harder for multiple reasons. People couldn’t do online school, law offices wouldn’t find documents as easily, computer based jobs wouldn’t be available, etc. Also, if we didn’t have computers during the 2020 pandemic education would’ve been harder. God bless!

    Reply
  145. Miguel

    I can’t believe how smart Dr. Roger Billings is!!

    Reply
  146. Kovey

    Learning about Billings Computers and all the computers made from him and the company and how they made one of the first personal computers and microcomputers is so cool!

    Reply
  147. Ruth

    Caleb never bores me. He looks good and is very funny. He’s kinda hot; i like all the sessions with the protoges, or whatever you call that, because they’re creative and appeal to the visual part of the mind.

    Reply
  148. Adelyn

    The resin printer was pretty cool!!! And congratulations on the 300th episode of science live!!!!!!!!!!!!!

    Reply
  149. Margarita

    I’m always so intrigued by watching these LIVES!

    Reply
  150. Charles

    The history of computers really helped me learn how advanced we are now! The vacuum tube computers were so weird looking but it’s cool to know that’s where computers started. All the topics covered today were so interesting.

    Reply
    • Coltyn

      Congratulations on the 300th episode, I love 3D printers. I want one to make fidget toys. I want a programming robot so I can do robotics too.

      Reply
    • Wendy

      Acellus is the best!!!!

      Reply
  151. Aloura

    I’m always so excited to see new videos every week! Y’all are so entertaining and I learn a lot!

    Reply
  152. Brody

    I can’t believe the innovation of the 3D printer and how it has gotten so advanced. Great video!

    Reply
    • Gracie

      I like watching these videos, lots of new material every week.

      Reply
  153. Gabriel

    Taking apart the old Billings computer was interesting. And to know that it was the first one!

    Reply
  154. Gibson

    I liked what dr. Joseph said about the jellyfish galaxy is was very interesting!

    Reply
  155. Adriel

    Hello Acellus I love the science lives there so entertaining, and i’d be interested to see the future of 3d printing.

    Reply
  156. Temperance

    Wow 300th episode 🤯

    Reply
  157. Chelsea

    Enjoyed this content in today science live, i can not wait for the next week

    Reply
  158. Caden

    It is amazing how far computers have come in the sense of size and what they can do. It will be interesting to see where they go next in the future. Thanks!

    Reply
  159. Everleigh

    r-51 is funny I like r-51

    Reply
  160. Edson

    Learning more about computers really showed me just how far our technology has come which is awesome!

    Reply
  161. Aiden

    Congratulations on the 300th episode love to sit here and watch the science lives

    Reply
  162. Saniya

    It was cool learning how we are able to have personal computers now thanks to people in the past.

    Reply
  163. Max

    The jellyfish galaxies are cool, I feel inspired to draw some galactic themed jellyfish now haha! The resin printer is also pretty neat!!

    Reply
  164. Carson

    Learning about the computers and how they used such little memory was cool

    Reply
  165. Alexis

    Acellus is the best

    Reply
  166. Lily

    Watching science live is always so fun!!

    Reply
  167. Jace

    I ❤️ Acellus

    Reply
  168. Valeria

    Overall, very interesting and very great to watch. I like that I could just watch this video and learn new things that I didn’t know before. I look forward every week to look at these videos and see what is new. Even if it comes to learning, it is a fun interactive way to learn.

    Reply
  169. Henry

    i liked the taco computer!

    Reply
  170. Chase

    I enjoyed watching this Science live episod It was great to hear Roger Billings talk about science and how important education is for our future. I like how he shares his life experiences to encourage us to stay curious and work hard. It motivates me to keep studying science and think about how I can use what I learn to help others

    Reply
  171. Chance

    This was a science video I learned a lot.

    Reply
  172. Geminia

    Ha Ha Ha R.51 is so darn funny 🤣😂😅😆

    talking from North Carolina!🇺🇲

    Reply
  173. Chance

    This is a one cool science video

    Reply
  174. Jayden

    There are so many things ive learned with science live and im grateful for it, 300 episodes is alot and i hope it goes on for a long time.

    Reply
  175. Julia

    this episode was really interesting, I like learning about computers

    Reply

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