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25 Cards in this Set
- Front
- Back
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command-based user interface
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text commands be typed at a prompt to perform basic tasks
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command prompt
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provided by most operating systems...allow advanced users to type specific commands
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Proprietary operating systems
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developed by a vendor fo r use witha specific computer hardware
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Portable OS
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one that can function with different hardware configurations
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Booting
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1. Cold boot: pushing switch
2. Warm boot: when computer currently running |
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POST (power on self test)
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make sure all components working properly
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Recovery disk
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a disk with which the computer can be started
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Spooling
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data written from processor to hard disk in waiting area to speed up everything else e.g printing
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Device Driver
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added control for a new hardware
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Transparent
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an activity happens automatically and does not have to be understood
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Logical View
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this is how a programmer thinks about data
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Physical View
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this is what the computer understands
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Virtual Memory (VM)
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allows users to store more data without increasing actual capacity of memory
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File system
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way of organizing data and files
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FAT
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file allocation table: this is a file system
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NTFS
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New Technology File System: secure and stable file system
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registry
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database that stores important information
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open-source software
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users have access to the source code
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embedded-operating systems
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for handheld devices and have a computer chip with the OS embedded in it
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Companies with handheld devices
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1. PalmOne (hardware)
2. PalmSource (software) 3. Microsoft(Pocket PC, Handhelp PC, Windows Embedded, Windows Mobile) |
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Utility programs
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system software besides OS that assists in maintaing, managing, and protecting computer system resources.
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Examples of Utility programs
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1. Virus detection & recovery
2. File compression 3. Spam and pop-up guards 4. Hardware and disk utilities 5. Backup utilities |
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Defragmentation
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rearranging files on a hard disk so as to increse speed of executing programs and retrieving data stored on hard disk
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Time sharing
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allows more than one person to use a computer...usu a server.
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NOS
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Network Operating systems e.g Windows as it includes security and netwrok management features
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