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Apple I

The Apple Computer 1 (Apple-1[a]), later known predominantly as the Apple I (written with a Roman numeral),[b] is an 8-bit motherboard-only personal computer designed by Steve Wozniak[5][6] and released by the Apple Computer Company (now Apple Inc.) in 1976. The company was initially formed to sell the Apple I – its first product – and would later become the world's largest technology company.[7] The idea of starting a company and selling the computer came from Wozniak's friend and Apple co-founder Steve Jobs.[8][9] One of the main innovations of the Apple I was that it included video display terminal circuitry and a keyboard interface on a single board, allowing it to connect to a low-cost composite video monitor instead of an expensive computer terminal, compared to most existing computers at the time. Contrary to popular belief, it was not the first personal computer to include such video output, predated by machines such as the Sol-20 and add-in cards such as the VDM-1.

This article is about the early microcomputer. For the streaming service, see Apple One. For Apple's use of the i- prefix, see Internet-related prefixes § "i-". For other uses, see Apple 1 (disambiguation).

Also known as

Apple I, Apple-1

April 11, 1976 (1976-04-11)

$666.66 (equivalent to $3,600 in 2023)[1]

September 30, 1977 (1977-09-30)

c. 175 to 200

4 or 8 KB[3]

256 B ROM[2]

Cassette tape

40×24 characters, hardware-implemented scrolling (Signetics 2513 "64×8×5 Character Generator"[4])

To finance the Apple I's development, Wozniak and Jobs sold some of their possessions for a few hundred dollars.[10] Wozniak demonstrated the first prototype in July 1976 at the Homebrew Computer Club in Palo Alto, California, impressing an early computer retailer.[11] After securing an order for 50 computers, Jobs was able to order the parts on credit and deliver the first Apple products after ten days.[12]


The Apple I was one of the first computers available that used the inexpensive MOS Technology 6502 microprocessor. An expansion included a BASIC interpreter, allowing users to utilize BASIC at home instead of at institutions with mainframe computers, greatly lowering the entry cost for computing with BASIC.


Production was discontinued on September 30, 1977, after the June 10, 1977 introduction of its successor, the Apple II, which Byte magazine referred to as part of the "1977 Trinity" of personal computing (along with the PET 2001 from Commodore Business Machines and the TRS-80 Model I from Tandy Corporation).[13] As relatively few computers were made before they were discontinued, coupled with their status as Apple's first product, surviving Apple I units are now displayed in computer museums.[14]

Computer museum

History of computer science

History of computing

KIM-1

Apple I Owners Club

(browse)

Apple I Operational Manual

German making-of article to recreate the Apple I Operational Manual

Apple I project on www.sbprojects.com

Apple 1 Computer Registry

John Calande III blog – Building the Apple I clone, including corrections on the early history of Apple Computer

– includes display of the Apple 1's character set on real hardware, compared to on most emulators

Apple 1 | Cameron's Closet

Shirriff, Ken (March 2022). .

"Inside the Apple-1's unusual MOS clock driver chip"