Ch. 12 MS-DOS Operating System . History Design Goals Memory Management Processor Management Device Management File Management User Interface Additional Commands. MS-DOS, PC-DOS or DOS. Developed to run single-user, stand-alone desktop computers.
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3. Command processor (shell) -- sends prompts to user, accepts commands, executes commands, & issues appropriate responses.
Reserved for BIOS 1M
Transient part of
Area (user memory)
Resident part of
Interrupt Vectors 0
Busy Free Busy Free Busy Characteristics
Block 1 Block 2 Block 3 Block 4 Block 5Free/Busy Block List
command source-file destination-file switches
command > destination
DIR | SORT
TYPE INVENTRY.DAT | MORE
MORE < INVENTRY.DAT
DIR | SORT | MORE
DIR | SORT > SORTFILE
MORE < SORTFILE