page_title: Dubna 48K
hierarchical_section_title: Dubna 48K
caption_attribution_description: en:Dubna 48K mainboard
context_page_description: The Dubna 48K is a Soviet clone of the ZX Spectrum home computer. It was based on an analogue of the Zilog Z80 microprocessor. Its name comes from Dubna, a town near Moscow where it was produced, and "48K" stands for 48 KBs of RAM.
context_section_description: The Dubna 48K (Дубна 48К) is a Soviet clone of the ZX Spectrum home computer. It was based on an analogue of the Zilog Z80 microprocessor. Its name comes from Dubna, a town near Moscow where it was produced, and "48K" stands for 48 KBs of RAM.
caption: Mainboard
exif: {"Image ImageDescription": "SAMSUNG DIGITAL CAMERA", "Image Make": "Samsung Techwin", "Image Model": "U-CA 501", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "The GIMP", "Image DateTime": "2005:07:12 17:08:05", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "248", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail Orientation": "Horizontal (normal)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail YCbCrPositioning": "Co-sited", "Thumbnail JPEGInterchangeFormat": "779", "Thumbnail JPEGInterchangeFormatLength": "7749", "EXIF ExposureTime": "1/30", "EXIF FNumber": "16/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "150", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2005:08:12 16:49:04", "EXIF DateTimeDigitized": "2005:08:12 16:49:04", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "2", "EXIF ExposureBiasValue": "-2", "EXIF MaxApertureValue": "16/5", "EXIF MeteringMode": "CenterWeightedAverage", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash fired", "EXIF FocalLength": "82/11", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2560", "EXIF ExifImageLength": "1920", "EXIF RelatedSoundFile": "", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "631"}