The Kenbak-1: The First Personal Computer

 



The Kenbak-1 was the first personal computer ever sold, released in 1971. It was a kit computer, meaning that the user had to assemble it themselves. It had 256 bytes of memory and no operating system.


The Kenbak-1 was invented by John V. Blankenbaker, who was a professor of electrical engineering at the University of Pennsylvania. Blankenbaker was inspired to create the Kenbak-1 after seeing the Altair 8800, another early kit computer. The Altair 8800 was not very user-friendly, so Blankenbaker wanted to create a more accessible personal computer.

John V. Blankenbaker

The Kenbak-1 was not very successful commercially. Only about 400 units were sold. However, it is still considered an important historical artifact. It is the first computer that met the definition of a personal computer, which is a computer that is designed for individual use.


Here are some deep insights about the Kenbak-1:


  1. It was the first computer to be marketed as a "personal computer."
  2. It was the first computer to be sold in a kit form.
  3. It had a very limited memory of 256 bytes.
  4. It had no operating system.
  5. It was not very user-friendly.
  6. It was not very successful commercially.

However, the Kenbak-1 is still an important historical artifact. It is the first computer that met the definition of a personal computer, and it helped to pave the way for the personal computers that we use today.


Here are some additional facts about the Kenbak-1:

  • It was made up of 22 printed circuit boards.
  • It had a clock speed of 1 MHz.
  • It had a hexadecimal keyboard.
  • It could be programmed in BASIC.
  • It cost $750 when it was first released.

The Kenbak-1 is a fascinating piece of history, and it is a testament to the ingenuity of John V. Blankenbaker. It is a reminder of the early days of personal computing, when computers were still very limited in their capabilities. However, the Kenbak-1 also helped to pave the way for the personal computers that we use today.

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