Tandy 1200 HD User Manual page 7

PRODUCT OVERVIEW
Major design features of the standard model include:
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256 kilobyte Random Access Memory (expandable to 640
kilobytes by installation of memory modules on the main
circuit board or a memory card in an expansion slot
80 column screen display
5-
1 /4
inch double-sided, double-density diskette drive (360
kilobytes, formatted)
5-1/4 inch fixed disk drive (10 megabytes, formatted)
84 key detachable keyboard
Compatibility with software programs or hardware "cards"
available for the IBM personal computer-XT
Microsoft Disk Operating System (MS-DOS@@) option
(Other optional operating systems available)
GW-BASIC@ programming language option (Other
optional programming languages available)
Six available slots for optional installation of additional Ran-
dom Access Memory or device controllers
Parallel printer output port (Standard)
Plug-in disk fixed controller (Standard)
Diskette drive controller included on main circuit board
(Standard)
Plug-in display controller (Optional)
MS-DOS@@ and GW-BASIC@@ are trademarks
of Microsoft Corporation.