page_title: Z11 (computer)
hierarchical_section_title: Z11 (computer)
caption_attribution_description: Deutsch: Computer Zuse Z11, 1956/57, Exponat im Technischen Museum Wien
context_page_description: The Z11 was a computer, the first serially produced machine of the Zuse KG.
  Weighing 800 kg, in 1955 it was built with relays and stepwise relays. Beginning in 1957 the Z11 could be programmed by punched tapes. It consumed 2 kW of electricity, and operated mechanically at a frequency of 10 to 20 Hz. Both input and output were in decimal numbers, and it used floating point arithmetic.
  The Z11 was first presented on the Hanover Messe in 1957. Today the German Museum of Technology and the Museum of Technology in Vienna exhibit one of the surviving Z11s.
context_section_description: The Z11 was a computer, the first serially produced machine of the Zuse KG.
  Weighing 800 kg (1,800 lb), in 1955 it was built with relays and stepwise relays. Beginning in 1957 the Z11 could be programmed by punched tapes.  It consumed 2 kW of electricity, and operated mechanically at a frequency of 10 to 20 Hz.  Both input and output were in decimal numbers, and it used floating point arithmetic.
  The Z11 was first presented on the Hanover Messe in 1957. Today the German Museum of Technology and the Museum of Technology in Vienna exhibit one of the surviving Z11s.
caption: Z11 in the Technical Museum in Vienna
exif: {"Image ImageWidth": "2560", "Image ImageLength": "1920", "Image BitsPerSample": "[8, 8, 8]", "Image PhotometricInterpretation": "2", "Image Make": "Panasonic", "Image Model": "DMC-FZ200", "Image Orientation": "Horizontal (normal)", "Image SamplesPerPixel": "3", "Image XResolution": "180", "Image YResolution": "180", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS6 (Windows)", "Image DateTime": "2016:02:15 10:59:22", "Image YCbCrPositioning": "Co-sited", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 50, 53, 48, 0, 0, 14, 0, 1, 0, 22, 0, ... ]", "Image Tag 0xC6D2": "[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ... ]", "Image Tag 0xC6D3": "[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ... ]", "Image ExifOffset": "724", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1402", "Thumbnail JPEGInterchangeFormatLength": "4689", "EXIF ExposureTime": "1/60", "EXIF FNumber": "14/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "400", "EXIF SensitivityType": "Standard Output Sensitivity", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2016:02:12 14:54:23", "EXIF DateTimeDigitized": "2016:02:12 14:54:23", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "4", "EXIF ShutterSpeedValue": "5906891/1000000", "EXIF ApertureValue": "1485427/500000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "95/32", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Flash", "EXIF Flash": "Flash fired, auto mode", "EXIF FocalLength": "9/2", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2560", "EXIF ExifImageLength": "1920", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "1276", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "0", "EXIF FocalLengthIn35mmFilm": "26", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "High gain up", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}