Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Commodore 64

The Commodore 64, also known as the C64, is an 8-bit home computer introduced in January 1982 by Commodore International (first shown at the Consumer Electronics Show, January 7–10, 1982, in Las Vegas). It has been listed in the Guinness World Records as the best-selling desktop computer model of all time, with independent estimates placing the number…

History, Applications & Products

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Commodore 64. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Connectivity
2× CIA 6526 (joystick, GPIO/RS-232/keyboard) · Power (+5V DC & 9V AC) · ROM cartridge · Video/audio (RF/A/V) · Serial IEEE 488 bus (floppy disk/printer)
CPU
@ 1.023 MHz (NTSC version) · @ 0.985 MHz (PAL version)
Discontinued
April 1994; 32 years ago (1994-04)
Graphics
VIC-II (320×200, 16 colors, sprites, raster interrupt)
Introductory price
US$595 (equivalent to $1,990 in 2025)
Manufacturer
Commodore Business Machines (CBM)

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

History

C64 family

Software

Hardware

Clones and other reuse of the Commodore 64 name

Emulators

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Commodore 64

Nodes339
Edges338
Triples371
Avg. degree1.99
Density0.0059
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Commodore 64

Top relations

related to Networking software · 43
Commodore 64 → America Online, AOL, Apple Macintosh, As, Bizarre, Blue Board, Bulletin Board Systems, C-Base, C-Net, Canadian, CMBBS, Color, Commodore, Compunet, CompuServe, Construction Kit, Control Video Corporation, CVC, December, DMBBS
related to Clones · 34
Commodore 64 → Atari, C-One C64, C64, C64 Direct-to-TV, C64 Reloaded, C64C, C64DTV, Called, Commodore, DC, DC-to-DC, Designed, In, Individual Computers, Intellivision, It, Jeri Ellsworth, KERNAL, NTSC, PAL
related to 1988–1994 · 31
Commodore 64 → American, Apple II, Atari, By, C64, C64's, C64s, Commodore, Computer Chronicles, Epyx CEO Dave Morse, European, In, It's, Model, Nintendo, Nintendo Entertainment System's, North American, NTSC, One, PC
related to CPU and memory · 26
Commodore 64 → Assy, BASIC, Because, Bit, C64, Commodore, Commodore BASIC, DRAM, DRAMs, I/O, IC, If, It, KB, KERNAL, Later, MOS Technology, Most, OUT OF MEMORY IN, RAM
related to 2025–present · 25
Commodore 64 → As, C64, Can We Save The, Commodore, COMMODORE Brand, Commodore Corporation, Compute, FPGA, Gazette, Gideon Zweijtzer, Gideon's Logic, January, March, My Biggest Project Yet, November, October, On July, On June, Retro Recipes, RGB
related to Software · 25
Commodore 64 → Apple II, Atari, Because, British C64, C64, C64's, Commodore, Elektron SidStation, Even, Few, In, It, KiB, Master System, NES, Nintendo Entertainment System, North America, PAL, PCs, SID
related to External links · 23
Commodore 64 → Archived, Archived September, C64, C64-Wiki, Commodore, Commodore Scene/Software Database, Commodoremagazine, Csdb, Design Case History, Extensive, Fansite, Gaming Platforms, History, IEEE Spectrum, Lemon64, March, May, October, Retrieved January, The Commodore
related to Reception · 22
Commodore 64 → An, At, Atari, BASIC, BYTE, C64, C64 BASIC, C64's, Commodore, Commodore BASIC, Commodore's, Creative Computing, December, Despite, In July, It, Obviously, POKE, SID, The Apple II
related to Web.it Internet computer · 21
Commodore 64 → AMD, C64, C64 Web, C64x, Commodore, Commodore USA, Despite, Internet Computer, Internet-oriented, It, June, MB, MS-DOS, PC, PC Card, RAM, SC400 SoC, The C64, The C64x's, Web
related to Manufacturing cost · 12
Commodore 64 → At, Berkeley Softworks, Commodore, Dougherty, Imagic, In, Mattel, The, To, TTL, US, Vertical

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

commodore c64 64 computer used software basic video two also disk atari memory rom market released system hardware chip computers

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Commodore 64Connectivity2× CIA 6526 (joystick, GPIO/RS-232/keyboard)1.00infobox
Commodore 64ConnectivityPower (+5V DC & 9V AC)1.00infobox
Commodore 64ConnectivityROM cartridge1.00infobox
Commodore 64ConnectivityVideo/audio (RF/A/V)1.00infobox
Commodore 64ConnectivitySerial IEEE 488 bus (floppy disk/printer)1.00infobox
Commodore 64ConnectivityDigital tape1.00infobox
Commodore 64CPU@ 1.023 MHz (NTSC version)1.00infobox
Commodore 64CPU@ 0.985 MHz (PAL version)1.00infobox
Commodore 64DiscontinuedApril 1994; 32 years ago (1994-04)1.00infobox
Commodore 64GraphicsVIC-II (320×200, 16 colors, sprites, raster interrupt)1.00infobox
Commodore 64Introductory priceUS$595 (equivalent to $1,990 in 2025)1.00infobox
Commodore 64ManufacturerCommodore Business Machines (CBM)1.00infobox
Commodore 64Memory64 KB RAM + 20 KB ROM1.00infobox
Commodore 64Operating systemCommodore KERNAL/BASIC 2.01.00infobox
Commodore 64Operating systemGEOS (optionally)1.00infobox
Commodore 64PredecessorVIC-201.00infobox
Commodore 64PredecessorMAX Machine1.00infobox
Commodore 64ReleasedAugust 1982; 44 years ago (1982-08)1.00infobox
Commodore 64SoundSID 6581/8580 (3× osc, 4× wave, filter, ADSR, ring)1.00infobox
Commodore 64SuccessorCommodore 1281.00infobox
Commodore 64SuccessorAmiga1.00infobox
Commodore 64TypeHome computer1.00infobox
Commodore 64Units sold12.5 – 17 million1.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.