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LASER TURBO XT-2
LASER COMPUTER, INC.
LASER TURBO XT-2
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Processor
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8088
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Processor Speed
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Unidentified
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Chip Set
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Unidentified
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Video Chip Set
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None
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Maximum Onboard Memory
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1MB
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Maximum Video Memory
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None
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Cache
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None
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BIOS
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Unidentified
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Dimensions
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330mm x 218mm
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I/O Options
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None
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NPU Options
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8087
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CONNECTIONS
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Purpose
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Location
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Purpose
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Location
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Auxiliary power connector
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CN1
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Front panel connector
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J12
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Speaker
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J11
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Reset switch
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JP3
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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Parity check enabled
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JP5
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Pins 1 & 2 closed
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Parity check disabled
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JP5
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Pins 2 & 3 closed
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»
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Factory configured - do not alter
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SW1/1
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Off
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NPU not installed
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SW1/2
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On
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NPU installed
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SW1/2
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Off
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»
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Factory configured - do not alter
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SW1/4
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Unidentified
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»
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Factory configured - do not alter
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SW2/4
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Unidentified
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DRAM CONFIGURATION
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Size
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Bank 0
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Bank 1
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Bank 2
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Bank 3
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512KB (A)
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None
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None
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None
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(16) 41256
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512KB (B)
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None
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(16) 41256
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None
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None
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640KB (A)
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(4) 4464
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None
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None
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(16) 41256
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1MB (B)
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None
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(16) 41256
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(16) 41256
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None
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Note: A = conventional memory. B = expanded memory.
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DRAM PARITY CONFIGURATION
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Size
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U25/U41
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U35/U40
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U58/U59
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U76/U77
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512KB (A)
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(2) 41256
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None
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None
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None
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512KB (B)
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None
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None
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(2) 41256
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None
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640KB (A)
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(2) 41256
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(2) 4164
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None
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None
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1MB (B)
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None
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None
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(2) 41256
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(2) 41256
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Note: A = conventional memory. B = expanded memory.
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DRAM SWITCH CONFIGURATION
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Size
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SW1/3
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512KB
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On
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640KB
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Off
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FLOPPY DRIVE SELECTION
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Drives installed
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SW1/7
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SW1/8
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1
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On
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On
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2
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Off
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On
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3
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On
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Off
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4
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Off
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Off
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MONITOR SELECTION
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Type
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SW1/5
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SW1/6
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EGA
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On
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On
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Color (40 x 25)
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Off
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On
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Color (80 x 25)
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On
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Off
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Monochrome
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Off
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Off
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I/O PORT ADDRESS SELECTION
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Address
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SW2/1
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SW2/2
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SW2/3
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208
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Off
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On
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On
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218
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On
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Off
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On
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258
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Off
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Off
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On
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268
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On
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On
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Off
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2A8
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Off
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On
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Off
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2B8
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On
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Off
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Off
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2E8
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Off
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Off
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Off
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Expansion memory disabled
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On
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On
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On
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