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.The codes put on the bus during POST can be used by POST reader cards to diagnose systems that fail to boot.POST reader: A diagnostic card that is inserted into a bus slot to display the POST codes during boot-up.This is used to diagnose a system that won't boot up.The most comprehensive POST reader is Micro 2000's Universal Post-Probe.Printed circuit board: A thin board, usually fiberglass, on which components are mounted -So called because the connections between the components are printed onto the board -Abbreviated PCBPrinter: A device that puts computer data onto paper.Processing: Using a computer program to manage data, either sorting it, storing it or changing it in some way.Processor: The part of the computer that controls the execution of program instructions.See CPU.Program: A series of instructions for completion of a specific task or for performance of an activity.RAM: Random Access Memory, the standard operating memory of the computer.Random access: Able to directly access any portion of data, without having to accept data in sequence.Read head: A head in a disk drive used to retrieve data from the platter.Read-only memory: Information hard-wired into chips.Used for the BIOS and in many I/O devices - Abbreviated as ROMReal-time clock: The CMOS circuitry that keeps track of the year, day and time of day for the system.Abbreviated RTCRefresh: A signal fed to RAM chips periodically, to keep them charged up so that data is not lost.Removable media: A cartridge or cassette that can be removed from the drive.Resolution: The sharpness of an image.Measured in a printer by Dots Per Inch, and in a monitor by the number of horizontal and vertical pixels.Resource conflict: The situation when two or more devices are trying to use the same system resources.Resources: See system resources.Riser card: A card that plugs into the motherboard to provide a perpendicular extension of the bus.Adapter cards are then plugged into the riser instead of the motherboard, allowing a lower profile to the case.Most often used for desktop systems that sit under the monitor.ROM: See read only memory.RTC: See real-time clock.SCSI: A high-speed interface for hard drives, CD-ROM drives, scanners and other devices.SCSI comes from Small Computer System Interface.Sector: A division of a disk platter, shaped like a piece of pie.Seek: In a disk drive, the process of finding a specific location, by moving the actuator arm over the desired track and waiting until the correct sector comes under the heads.Sequential access: Data must be read in the order it appears.This method applies to tape, and to a lesser degree to disks.Serial port: A connection for data transfer, using a single data line.Silicon: The element used to make transistors and integrated circuits.SIMM: Single In-line Memory Module, a small plug-in circuit board with one row of input signals.Software: Instructions for a computer, organized into sets called programs.Sound card: An expansion card with connections for speakers.Start bit: A zero bit marking the start of a serial port data byte.Stepping switch: A push-button switch on the Post-Probe that when pressed shows the code in the POST sequence immediately previous to the one currently displayed.Stop bits: One or more bits marking the end of a serial port data byte.Storage: Holding of program instructions and data for use by the computer.Temporary storage while the computer is running is provided by the RAM, and permanent storage is available on disk and tape.SVGA: Super Video Graphics Array, the enhanced version of VGA used in most new PCs.Standard resolution is 800 x 600SXGA: A high-end video standard, with 1280 x 1024 resolution.It stands for Super Extended Graphics Array.System: All of the parts that work together for a particular purpose.A computer system consists of the monitor, keyboard, all of the components in the CPU cabinet and any peripherals connected to it.An operating system is all of the routines and utilities needed for control of the computer, organized into one program.System board: Same as motherboard.System resources: Motherboard features which must be allocated among devices.These include IRQs, DMA channels, I/O ports and ROM addresses [ Pobierz całość w formacie PDF ]
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.The codes put on the bus during POST can be used by POST reader cards to diagnose systems that fail to boot.POST reader: A diagnostic card that is inserted into a bus slot to display the POST codes during boot-up.This is used to diagnose a system that won't boot up.The most comprehensive POST reader is Micro 2000's Universal Post-Probe.Printed circuit board: A thin board, usually fiberglass, on which components are mounted -So called because the connections between the components are printed onto the board -Abbreviated PCBPrinter: A device that puts computer data onto paper.Processing: Using a computer program to manage data, either sorting it, storing it or changing it in some way.Processor: The part of the computer that controls the execution of program instructions.See CPU.Program: A series of instructions for completion of a specific task or for performance of an activity.RAM: Random Access Memory, the standard operating memory of the computer.Random access: Able to directly access any portion of data, without having to accept data in sequence.Read head: A head in a disk drive used to retrieve data from the platter.Read-only memory: Information hard-wired into chips.Used for the BIOS and in many I/O devices - Abbreviated as ROMReal-time clock: The CMOS circuitry that keeps track of the year, day and time of day for the system.Abbreviated RTCRefresh: A signal fed to RAM chips periodically, to keep them charged up so that data is not lost.Removable media: A cartridge or cassette that can be removed from the drive.Resolution: The sharpness of an image.Measured in a printer by Dots Per Inch, and in a monitor by the number of horizontal and vertical pixels.Resource conflict: The situation when two or more devices are trying to use the same system resources.Resources: See system resources.Riser card: A card that plugs into the motherboard to provide a perpendicular extension of the bus.Adapter cards are then plugged into the riser instead of the motherboard, allowing a lower profile to the case.Most often used for desktop systems that sit under the monitor.ROM: See read only memory.RTC: See real-time clock.SCSI: A high-speed interface for hard drives, CD-ROM drives, scanners and other devices.SCSI comes from Small Computer System Interface.Sector: A division of a disk platter, shaped like a piece of pie.Seek: In a disk drive, the process of finding a specific location, by moving the actuator arm over the desired track and waiting until the correct sector comes under the heads.Sequential access: Data must be read in the order it appears.This method applies to tape, and to a lesser degree to disks.Serial port: A connection for data transfer, using a single data line.Silicon: The element used to make transistors and integrated circuits.SIMM: Single In-line Memory Module, a small plug-in circuit board with one row of input signals.Software: Instructions for a computer, organized into sets called programs.Sound card: An expansion card with connections for speakers.Start bit: A zero bit marking the start of a serial port data byte.Stepping switch: A push-button switch on the Post-Probe that when pressed shows the code in the POST sequence immediately previous to the one currently displayed.Stop bits: One or more bits marking the end of a serial port data byte.Storage: Holding of program instructions and data for use by the computer.Temporary storage while the computer is running is provided by the RAM, and permanent storage is available on disk and tape.SVGA: Super Video Graphics Array, the enhanced version of VGA used in most new PCs.Standard resolution is 800 x 600SXGA: A high-end video standard, with 1280 x 1024 resolution.It stands for Super Extended Graphics Array.System: All of the parts that work together for a particular purpose.A computer system consists of the monitor, keyboard, all of the components in the CPU cabinet and any peripherals connected to it.An operating system is all of the routines and utilities needed for control of the computer, organized into one program.System board: Same as motherboard.System resources: Motherboard features which must be allocated among devices.These include IRQs, DMA channels, I/O ports and ROM addresses [ Pobierz całość w formacie PDF ]