Embed Size (px)
Citation preview
MS DOS
MICROSOFT -DISK OPERATING SYSTEM
HISTORY
MS-DOS was a renamed form of 86-DOS — informally known as the Quick-and-dirty Operating System or Q-DOS owned by Seattle Computer Products, written by Tim Paterson.
8086 but it had Microsoft needed an operating system for the then-new Intel one available, so it licensed 86-DOS and released a version of it as MS-DOS 1.0.
Development started in 1981, and MS-DOS 1.0 was released with the IBM PC in 1982. Tim Paterson is considered the original author of DOS and he is called "The Father of DOS
Worried by possible legal problems, in June 1981 Microsoft made an offer to Rod Brock, the owner of Seattle Computer, to buy the rights for 86-DOS. An agreement to release all rights to the software was signed in June 1981. The total cost was $75,000
Types of commands
There are two types of commands Internal commands These are the commands which reside in the portion of computer’s memory and are loaded along with the operating system in to the memory. These commands are always available for execution.
External commandsthese are the commands which have to be loaded from the disk into the memory of the computer before we want to execute
Internal commands• CLS
• VOL
• VER
• PATH
• DEL
• TYPE
• MD
• CD
• REN
• PROMPT
• COPY
• TIME
• DATE
• PAUSE
• DIR
External Commands• Backup
• Restore
• Chkdsk
• Tree
• Diskcopy
• Diskcomp
• Copy con
• Move
• Undelete
• Format
• Deltree
Features
• Files– Text files– Batch files– Application program
• File characteristics– File name– Extensions
• Directory
• Path– Relative– Absolute
• Wild cards– *– ?
DifferenceWindows• GUI – icons n menus• Multi – tasking• Clipboard• OLE – “live” pasting• Drag n Drop• Mutliple fonts• Multimedia capability• Dialog boxes
Dos• Command based ( CUI )• Single tasking• Not available• Not possible• No pointer• Default font• Textual medium• No dialog boxes
Windows
• Paint
• Display properties
• Mouse settings
• Themes– Desktop
– Screen Saver
– Appearance
– Settings
Desktop Settings•Browse
•Position• Center• Stretch• Tile
•Color
•Customise• Icon settings
• Screen Saver Settings• Preview• Wait timing
• Power Settings• Alarms• Power Meter• Advanced• Hibernate
Appearance
Effects
Settings
