silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: Intel x86 Pentium II-compatible chip @ 266 MHz

  • Memory: 64 MB of RAM

  • Graphics:
    • Primary Adapter: A Super VGA compatible non-nVidia, non-ATI, no-name video card, 8 MB of video RAM, PCI bus.

    • Secondary Adapter: 3dfx Voodoo² 3D graphics accelerator, 8 MB video RAM, also PCI bus, max resolution 800x600

  • Sound: Internal Speaker, Sound Blaster-compatible sound card with 3.5" jacks for output speakers and input microphones

  • Inputs and Outputs: Keyboard (PS/2) and mouse (PS/2), gamepad port on sound card (serial), additional serial and parallel port cards for printers or other devices (not attached)

  • Storage: 2 GB hard drive, one 3.5" floppy disk drive, one CD-ROM drive

  • OS: Windows 98 (on top of DOS, still.)


The last hurrah of DOS and dial-up alike )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: Intel i486-compatible chip @ 100 MHz

  • Memory: 4 or 8 MB of total RAM

  • Graphics: Video Graphics Array (maybe, maybe using the new PCI bus standard), 640x480 to Super Video Graphics Array, 1024x768, Lots of colors

  • Sound: Internal Speaker, Sound Blaster-compatible sound card with 3.5" jacks for output speakers and input microphones

  • Inputs and Outputs: Keyboard (AT) and mouse (serial), additional serial and parallel port cards for printers of other devices (not attached)

  • Storage: 512 MB hard drive, one 3.5" floppy disk drive

  • OS: MS-DOS 6.22, Windows 3.1


A 486, in my room! )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: Ricoh 5A22 @ 3.58 MHz

  • Memory: 128KB general RAM, 64KB dedicated RAM for video and audio subsystems

  • Graphics: Picture Processing Unit, 256x224, 256 colors from the 15-bit color space

  • Sound: Nintendo S-SMP, 8 audio channels in stereo

  • Inputs and Outputs: Custom plug that accepted gamepads, joysticks, multi-tap adapters, light gun (Super Scope), and several single software controllers, like a mouse, bat, or tennis racket. The system could also, with a compatible official adapter (Super Game Boy), play handheld console games on a television. (Also, Game Genies and other unofficial accessories, like for other consoles of this and previous eras.)


The Super Nintendo Entertainment System )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: Intel 80286 @ 6 or 8 MHz

  • Memory: 640 KB of RAM

  • Graphics: CGA or monochrome monitors

  • Sound: Internal Speaker

  • Inputs: Keyboard

  • Storage: 20 MB hard drive, one 5.25" floppy disk drive

  • OS: MS-DOS (probably 3.3)


A Compaq 286 Luggable )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: Motorola 68000 at 7.61 MHz, Zilog Z80 @ 3.56 MHz (Compatibility and Sound Controller)

  • Memory: 64 KB RAM, 1 MB of ROM, 64KB dedicated video RAM, 8 KB of dedicated sound RAM

  • Graphics: Yamaha YM7101 Video Display Processor: 61 simultaneous colors of 512 color pallete @ 320 x 224. Sprites, tiles, the whole thing.

  • Sound: A Texas Instruments 76489 chip for most sounds paired with a Yamaha YM 2612 for FM generation, 6-channel stereo.

  • Inputs: Two DE-9 ports that accepted 3 or 6 button gamepads, light guns, and other compatible peripherals including the Atari 2600 joystick (although that's only useful in games that require only one button to play…)


The Sega Genesis / Mega Drive )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: Intel 80286 or compatible chip, with the ability to toggle between speeds of 8 MHz and 16 MHz through the combination of Ctrl-Alt-Minus(-) and Ctrl-Alt-Plus(+) or the use of a Turbo button on the case.

  • Memory: Up to 4MB of RAM

  • Graphics: Color Graphics Adapter (CGA), 4 colors, 320x200, Enhanced Graphics Adapter (EGA), 16 colors, 320x200, Video Graphics Array (VGA), 256 colors, 320x200 or 16 colors, 640x480

  • Sound: A SoundBlaster (or, more likely, a SoundBlaster compatible audio card), with an RCA mini jack connected to speakers, but also, the internal speaker of the motherboard itself

  • Inputs/Outputs: Keyboards (AT or PS/2), Mouse (DE-9 serial or PS/2), Joysticks and gamepads (DE-9 serial), Printers (parallel), basically anything that will fit an ISA 8-bit or 16-bit slot and provides an appropriate port and cable.

  • Storage: This machine had to have a hard drive on it, but it couldn't have been more than 100 MB. It also game with both a 3.5" disk drive and a 5.25" disk drive, for all your floppy needs.

  • OS: MS-DOS (likely 5.0 for this system)


A 286, as we called it )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: MOS Technology 6510/8500 @ 1.023 MHz

  • Memory: 64 KB RAM + 20 KB ROM

  • Graphics: VIC-II (320×200, 16 colors, sprites, raster interrupt)

  • Sound: SID 6581/8580 (3× osc, 4× wave, filter, ADSR, ring)

  • Inputs/Outputs: 2× CIA 6526 (joystick, GPIO/RS-232/keyboard), ROM cartridge, Serial IEEE 488 bus (floppy disk/printer) Digital tape

  • OS: Commodore KERNAL/BASIC 2.0, GEOS (optionally)


The Commodore 64 )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: MOS Technology/Synertek 6502 @ 1.023 MHz or
    NCR/GTE 65C02 @ 1.023 MHz

  • Memory: 64 kB RAM built-in, expandable up to 1 MB RAM or more, 16 kB ROM built-in

  • Video: Up to 560×192 (16 colors), NTSC composite video output (RCA connector)

  • Audio: Built-in speaker with 1-bit toggling, Built-in cassette recorder interface using two 1⁄8-inch mono phono jacks with 1-bit toggle output, 1-bit zero-crossing input

  • Expansion: Seven 50-pin card-edge slots, one 60-pin card-edge slot.

  • Input: Keyboard, with numeric keypad available separately, single-button mouse available as an expansion card or with the DE-9 connector interface, Joystick (DE-9)


The Apple IIe )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: Ricoh 2A03, an 8-bit microprocessor containing a second source MOS Technology 6502 core, 1.79 MHz.

  • RAM: 2 KB of onboard work RAM. Cartridges may contain expanded RAM to increase this amount, from 8 KB to 1 MB.

  • Video Processor: Custom-made Picture Processing Unit (PPU) developed by Ricoh. 2 KB of video RAM, 256 bytes of on-die "object attribute memory" (OAM) to store the positions, colors, and tile indices of up to 64 sprites on the screen, and 28 bytes of on-die palette RAM to allow selection of background and sprite colors. Standard display resolution is 256 horizontal pixels by 240 vertical pixels.

  • Video output: Composite video through RCA connectors in addition to a real frequency (RF) modulator.

  • Sound: Five sound channels, two of which are pulse channels with 4 pulse width settings, one is a triangle wave generator, another is a noise generator (often used for percussion), and the fifth one plays low-quality digital samples.

  • Input: Two custom seven-pin ports, expandable to four ports with accessories, able to accept gamepads and joysticks (four directions, two buttons marked A and B, and two buttons marked Select and Start), some with turbo button pressing functions, light gun (reflective mirror with trigger, position calculated by flashing the screen bright white and reading the reflection in the mirror), floor pad with six buttons for each side, and Robotic Operating Buddy.


The Nintendo Entertainment System )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: 2.5 MHz Zilog Z80 microprocessor

  • 64 kB of RAM

  • Two single-sided 191-kilobyte 5¼-inch floppy disk drives (named A: and B:)

  • 80-column, green monochrome, 9" CRT

  • Input: Keyboard

What I didn't remember about this computer is that it's a luggable, which I have scheduled for later on in this series when I get to the luggable I do remember.

The Kaypro II )
silveradept: A librarian wearing a futuristic-looking visor with text squiggles on them. (Librarian Techno-Visor)
[Welcome to December Days, where I natter on about things organized around a theme (sometimes very loosely), one a day, for 31 days. This year, we're taking a look back at some touchpoints along the way of my journey with computing and computing devices.]

  • CPU: 1.19 MHz MOS Technology 6507

  • Audio + Video processor: Television Interface Adapter (TIA)

    • Output: B/W or color TV picture and sound signal through RF modulator. 2 channels of 1-bit monaural sound with 4-bit volume control.

  • RAM (within a MOS Technology RIOT chip): 128 bytes (additional RAM may be included in the game cartridges)

  • ROM (game cartridges): 4 kB maximum capacity (64 kB with bank switching)

  • Input (controlled by MOS RIOT): Two screwless DE-9[a] controller ports, for single-button joysticks, paddles, trackballs, driving controllers, 12-key keyboard controllers (0–9, #, and *), and third party controllers with additional functions. Six switches (original version): Power on/off, TV signal (B/W or Color), Difficulty for each player (called A and B), Select, and Reset. Except for the power switch, games could (and did) assign other meanings to the switches. On later models, the difficulty switches were miniaturized and moved to the back of the unit.


The Atari 2600 )

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