Atari 800XL: Difference between revisions
| (One intermediate revision by the same user not shown) | |||
| Line 24: | Line 24: | ||
The '''Atari 800XL''' is a home computer released by Atari, Inc. in 1983 as part of the Atari 8-bit family. It combined the improved electronics of the XL line with a revised, compact case and a full 64 KB of RAM, becoming one of the most popular Atari 8-bit models worldwide. | The '''Atari 800XL''' is a home computer released by Atari, Inc. in 1983 as part of the Atari 8-bit family. It combined the improved electronics of the XL line with a revised, compact case and a full 64 KB of RAM, becoming one of the most popular Atari 8-bit models worldwide. | ||
== | == Architecture and Processor == | ||
The 800XL is powered by the '''MOS Technology 6502C''' microprocessor, running at: | The 800XL is powered by the '''MOS Technology 6502C''' microprocessor, running at: | ||
* '''1.79 MHz''' (NTSC systems) | * '''1.79 MHz''' (NTSC systems) | ||
| Line 37: | Line 37: | ||
This architecture enabled advanced graphics and sound for its era, with hardware support for smooth scrolling, sprites (player/missile graphics), and multiple display modes. | This architecture enabled advanced graphics and sound for its era, with hardware support for smooth scrolling, sprites (player/missile graphics), and multiple display modes. | ||
== | == Memory and Storage == | ||
The Atari 800XL features: | The Atari 800XL features: | ||
* '''64 KB RAM''' – the maximum addressable by the 6502, allowing for more complex software and full compatibility with most Atari 8-bit programs. | * '''64 KB RAM''' – the maximum addressable by the 6502, allowing for more complex software and full compatibility with most Atari 8-bit programs. | ||
| Line 47: | Line 47: | ||
* '''Cartridge slot''' – for instant-loading software and utilities. | * '''Cartridge slot''' – for instant-loading software and utilities. | ||
== | == Display and Graphics == | ||
Graphics are handled by the ANTIC and GTIA chips, offering: | Graphics are handled by the ANTIC and GTIA chips, offering: | ||
* '''Resolution:''' up to 320×192 pixels (bitmap mode) | * '''Resolution:''' up to 320×192 pixels (bitmap mode) | ||
| Line 57: | Line 57: | ||
These capabilities made the 800XL a favourite for games and graphics-intensive applications. | These capabilities made the 800XL a favourite for games and graphics-intensive applications. | ||
== | == Sound Capabilities == | ||
Audio is generated by the '''POKEY''' chip, providing: | Audio is generated by the '''POKEY''' chip, providing: | ||
* '''4 independent voices''' (channels), each with 8-bit resolution | * '''4 independent voices''' (channels), each with 8-bit resolution | ||
| Line 66: | Line 66: | ||
The POKEY chip's flexibility allowed for a wide range of sound effects and music, contributing to the system's strong gaming library. | The POKEY chip's flexibility allowed for a wide range of sound effects and music, contributing to the system's strong gaming library. | ||
== | == Input/Output and Expansion == | ||
The 800XL offers a comprehensive set of I/O ports: | The 800XL offers a comprehensive set of I/O ports: | ||
* '''Cartridge slot''' – for game and utility cartridges | * '''Cartridge slot''' – for game and utility cartridges | ||
| Line 78: | Line 78: | ||
The PBI allowed for advanced expansions, such as memory upgrades and hard disk interfaces, although few peripherals were released for it. | The PBI allowed for advanced expansions, such as memory upgrades and hard disk interfaces, although few peripherals were released for it. | ||
== | == PCB Schematics & Service Manual == | ||
<templatestyles src="Template:StyledTable/styles.css" /> | <templatestyles src="Template:StyledTable/styles.css" /> | ||
| Line 92: | Line 92: | ||
* The full Atari 800XL Field Service Manual, including schematics and troubleshooting flowcharts, is available at: [[Atari 800XL Service Manual|Atari 800XL Field Service Manual]] | * The full Atari 800XL Field Service Manual, including schematics and troubleshooting flowcharts, is available at: [[Atari 800XL Service Manual|Atari 800XL Field Service Manual]] | ||
== | == Gallery == | ||
<gallery mode="packed" heights="200"> | <gallery mode="packed" heights="200"> | ||
File:Atari-800XL.jpg|Atari 800XL front view | File:Atari-800XL.jpg|Atari 800XL front view | ||
| Line 101: | Line 101: | ||
</gallery> | </gallery> | ||
== | == Related Pages == | ||
* [[Atari 800XL General Maintenance]] | * [[Atari 800XL General Maintenance]] | ||
* [[Atari 800XL Troubleshooting Guide]] | * [[Atari 800XL Troubleshooting Guide]] | ||