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55 Cards in this Set
- Front
- Back
What is booting?
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process of starting the computer
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What is a network operating system?
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Supports a network of computers
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Magnetic storage media
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Usues magnetic patterns to store items.
floppies, tape, hard drive |
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What is user interface?
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controls how you enter data and instructions and how information displays on the screen.
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What is a cold boot
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when you turn on a computer after it has been powered off completly.
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Download
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bringing info from website to own computer
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Read Write Head
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a read write head in the floppy disk drive reads items from or writes items on the floppy disk
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Kernal
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is the core of an operating system that manages memory and devices, maintains the computer clock
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Input?
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Any data or instructions you enter into the memory of the computer
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No impact printer
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laser/inkjet
ink is sprayed on paper |
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Upward media
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are NOT floppy disk drives
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What is MICR?
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Magnetic ink character recognition. Reads magnetic ink.
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Information?
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data the is organized, meaningful and useful
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Internet Hard Drive
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Rented storage space
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Command
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Instruction given to a computer program
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Resolution
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Sharpness of an image.
measeured in pixels |
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What are some things the Operating system does?
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starts the computer, provides a user interface, manage programs, manage memory, access the web, provide housekeeping, control and network, administer security
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What is OS/2?
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multitasking client operating system - it can run DOS and most windows programs.
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What is a Utility program?
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it performs a specific task-
file compression, disk clean up |
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What is a server operating system?
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Generally resides on a server
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Impact Printer
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stikes the paper
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What is a username?
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unique combination of characters that identifies one specific user
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What is OMR?
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Optical Mark Recognition-
recognizes marks |
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Spooling?
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sends print jobs to the buffer instead of sending them immediately to the printer.
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Upload
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Moving files from your computer to another computer
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Password?
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combination of characters associated with the username that allows access
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Output device
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printer, speakers
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Data?
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Colection of Raw unprocessed facts and figures
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Monitors LCD
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Liquid crystal display
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What is a File Manager?
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performs functions such as formatting and copying disks, checking used and free storage.
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Optical Scanner
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highest level
reads characters, scans and can edit |
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Program?
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series of instructions that tells the computer how to perform the tasks necessary to process the data into information.
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What are the Two Command Line interfaces?
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UNIX and DOS
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Sequential access
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is much slower than direct
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What is a command line interface?
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type keywords or press special keys on the keyboard to enter data and instructions
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Ergonomics
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Incorporate design,comfort and safety in the workplace.
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What is a device driver?
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small program that tells the operating system how to communicate with a peripheral.
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Single user operating system
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allows only one person to runone program at a time
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Input Device
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Keyboard, mouse, scanner, microphone
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What is DOS?
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Disk operating system-
it is a command line interface |
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What is an operating system?
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is a set of programs containing instructions that coordinate all the activities amoung the hardware
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What is an Embedded operating system?
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resides on a ROM chip- Used in hand Palms- etc.
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Multiuser operating system
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enables 2 or more users to run a program simultaneously.
UNIX |
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Fault Tolerant computer
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Continues to operate even if one of its components fails. It can repair itself.
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Downward compatible
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usually floppy disk-
means they can recognize and can use earlier media |
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What is a buffer?
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segment of memory or storage in which items are placed while waiting to be transferred to an output device.
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Multitasking operating system
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allows a single user to work on two or more applications that reside in memory at the same time.
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Thermal printer
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heat used to bond ink
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Monitors. CRT
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Catho Ray Tube
Large sealed glass tube The refresh rate is the speed the monitor redraws the image Uses Dot pitch to measure image |
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What is a warm boot?
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process of restarting a computer that is already on.
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Direct Access
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Floppy disks, hard disks, and CD's us this.
means you can locate a particular data item for file immediately |
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Recovery disk
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-boot disk-
contains system files that will start the computer. |
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Optical Storage media
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Cd, DVD CD-RW, DVD -RW
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Mulimedia
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more than 1 media
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2 types of user interface
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Command line and Graphical user
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