m (Cast & Characters)
m (Fixes)
Line 1: Line 1:
{{infobox episode
{{infobox episode
| title = I/O
| season = 1
| season = 1
| number = 1
| number = 1
Line 10: Line 9:
| writer = [[Christopher Cantwell]]<br>[[Christopher C. Rogers]]
| writer = [[Christopher Cantwell]]<br>[[Christopher C. Rogers]]
| director = [[Juan Campanella]]
| director = [[Juan Campanella]]
| previous = -
| previous =
| next = [[FUD]]
| next = [[FUD]]
}}"'''I/O'''" is the first episode of [[Season 1]] of ''[[Halt and Catch Fire]]'', and the premiere episode of the series overall. It originally aired on June 1<sup>st</sup>, 2014 on [[AMC]].
"'''I/O'''" is the first episode of [[Season 1]] of ''[[Halt and Catch Fire]]'', and the premiere episode of the series overall. It originally aired on June 1<sup>st</sup>, 2014 on [[AMC]].

Revision as of 05:55, July 26, 2016

Season 1 • Episode 1
Episode Information
Air Date June 1, 2014
Written by Christopher Cantwell
Christopher C. Rogers
Directed by Juan Campanella
U.S. Rating 1.19 Million
Previous Next

"I/O" is the first episode of Season 1 of Halt and Catch Fire, and the premiere episode of the series overall. It originally aired on June 1st, 2014 on AMC.


Joe MacMillan, a fast-talking salesman and enigmatic visionary, comes up with the idea to reverse engineer his former employer’s PC into something better and cheaper. All he needs are the right people to help him accomplish this.

Episode Overview

An early computer command that sent the machine into a race condition, forcing all instructions to compete for superiority at once.
Control of the computer could not be regained.

The story begins in 1983, with a man named Joe MacMillan speaking in a college classroom, guiding a discussion on what computers will be able to do in ten years. He asks questions to find out the computer skills and experience of the students in the classroom. One student in particular, Cameron Howe, gets his attention as she makes statements about computers that show she knows what she is talking about. Joe later finds Cameron at an arcade where she hangs out and tries to learn more about her.

Meanwhile, computer engineer and Cardiff Electric employee Gordon Clark is bailed out of jail by his wife. He is living in a reckless and depressed state because of his failure with a previous engineering attempt. Joe gets on at Cardiff Electric and makes contact with Gordon. He uses an article that Gordon got published in the past to harness Gordon's desire to make computers more advanced.

It takes several conversations, but Joe convinces Gordon to reverse engineer an IBM computer. Gordon explains that most of the parts inside the computer are common but that a specific chip in the computer is the part that IBM actually has copyrighted. This part of the computer is what makes it work successfully. Joe and Gordon work in Gordon's garage and decipher the source code for the IBM computer.

Even though what they are doing is illegal, Joe has already anticipated some legal loopholes. Cardiff Electric's attorney figures out that the company can reverse engineer their own computer system if they meet certain criteria. One of these criteria is that they have to keep Joe and Gordon on the project. The other criteria is that they have to hire an outsider who has no prior knowledge of the project.

Joe recruits Cameron Howe to be the "outsider". The attorney for Cardiff Electric asks Cameron questions that are necessary to meet the legal requirements. He nods his head "No" to guide Cameron to answer "No" to the questions.

The executives at Cardiff Electric discuss IBM coming in and insist that everyone keep their stories straight. The episode ends with a group of IBM executives showing up at Cardiff Electric, with Gordon asking Joe what he is trying to prove.

Cast & Characters


Guest Starring


  • Daniel Collins as Arcade Attendee
  • Adam Drescher as Office Supervisor
  • Lisa Finlayson as Cardiff Administration
  • Gregory Hunter as Cardiff Engineer
  • Adam C. Johnson as Movie Theater Attendee
  • Jesse Kindred as Student
  • Barbra Prince as Shopper


Featured Music



  • The episodes title, I/O, stands for "Input/Output". An "Input" is the data received by a computer or related system, and the "Output" is the data sent from it.
  • Before the official series premiere, this episode was made available on AMC's Tumblr page on May 19th, 2014. It was the very first TV series to do this.
Season 1 I/OFUDHigh Plains HardwareClose to the MetalAdventureLandfallGiantThe 214sUp Helly Aa1984
Season 2 SETINew CokeThe Way InPlay with FriendsExtract and Defend10Broad36Working for the Clampdown
LimboKaliHeaven Is a Place
Season 3 Valley of the Heart's DelightOne Way or AnotherFlipping the SwitchRules of Honorable PlayYerba Buena
And She WasThe ThresholdYou Are Not SafeNIMNeXT
Season 4 So It GoesSignal to NoiseMiscellaneousTonya and NancyNowhere ManA Connection is Made
Who Needs a GuyGoodwillSearchTen of Swords
Community content is available under CC-BY-SA unless otherwise noted.