MACHINE REFERENCE

Nintendo Entertainment System

Nintendo Entertainment System — launched in North America dressed up with a robot toy and a plastic light gun, specifically to avoid the word “video game console” after the market that word described had collapsed in 1983.

Why it matters

Nintendo’s insistence on licensing control — the 10NES lock-out chip, the Seal of Quality, strict limits on how many NES titles a publisher could release per year — was a direct response to the flood of shovelware that had helped sink Atari’s market a few years earlier. It worked almost too well: the NES didn’t just revive home consoles in America, it created the licensed third-party publishing model that every console maker since has copied in one form or another.

What to check before you buy

  • A console that appears to power-cycle itself repeatedly is very likely the 10NES chip, not a dead motherboard — this is a known, fixable fault rather than a reason to walk away
  • Inspect the cartridge connector pins for corrosion; a clean or reseated connector solves most “flashing screen” complaints
  • Decide whether RF or composite output matters to you — composite (NES only, not Famicom) gives a noticeably cleaner picture
  • Front-loading original units and later top-loading NES-101 models handle cartridges very differently — check which you’re actually being offered
Nintendo Entertainment System console in grey with a black cartridge door

Photo: Evan-Amos, Wikimedia Commons (Public domain)

Released

1985 (North America); 1983 (Japan, as the Family Computer/Famicom)

RAM

2 KB work RAM, 2 KB video RAM, plus 256 bytes of sprite RAM

CPU

Ricoh 2A03 (NTSC, 1.79 MHz) / Ricoh 2A07 (PAL, 1.66 MHz), an unlicensed 6502-derived core with integrated audio processing

Launch price

Japan ¥14,800 (Famicom); North America $179.99 (Deluxe Set with R.O.B. and Gyromite, 1985), later $99.99 for the basic Action Set

Manufacturer

Nintendo

Form factor

Front-loading console (grey, black and red) with a hinged cartridge door; a top-loading NES-101 redesign followed in 1993

CPU

Ricoh 2A03 (NTSC, 1.79 MHz) / Ricoh 2A07 (PAL, 1.66 MHz), an unlicensed 6502-derived core with integrated audio processing

Chipset

Ricoh 2C02 Picture Processing Unit (PPU) alongside the 2A03 CPU

RAM

2 KB work RAM, 2 KB video RAM, plus 256 bytes of sprite RAM

ROM

Cartridge-supplied — up to 32 KB program ROM and 8 KB graphics ROM per cartridge at baseline, extendable via bank-switching hardware such as UNROM

Graphics

256×240 resolution, 54 usable colours with 25 displayable simultaneously, up to 64 sprites on screen

Audio

Five channels integrated into the CPU package — two pulse wave, one triangle wave, one noise, one delta-modulation (DPCM) sample channel

Storage

Game Pak cartridges

Ports

Two 7-pin detachable controller ports (front), expansion port (bottom), RF modulator output plus composite video via RCA

OS

None — firmware handled via the 10NES lock-out chip authenticating official cartridges

PSU

External AC adapter (exact voltage/current rating not independently confirmed against a primary source)

Units sold

61.91 million worldwide

Successors

Super Nintendo Entertainment System (21 November 1990)

  • Blinking red power light (10NES lock-out)
    The 10NES authentication chip frequently causes the console to appear to power itself on and off repeatedly, because it resets the system roughly once a second when it can't verify the cartridge — the single most infamous NES fault.
  • Cartridge connector (56-pin ZIF) wear
    The front-loading zero-insertion-force connector wears with repeated cartridge swaps and is more prone to dust and interference than a standard card-edge connector; the brass-plated nickel pins also tarnish and oxidise over time, which blowing into cartridges makes worse, not better.
  • 1983 Famicom launched in Japan on 15 July
  • 1983 Famicom recalled and revised late in the year after a defective IC caused widespread crashes
  • 1985 NES test-launched in New York on 18 October
  • 1986 Full North American NES launch on 27 September
  • 1993 Redesigned top-loading NES-101 released, dropping the 10NES chip entirely