Powerline FAQ

Our Essential Wireless FAQ gets a lot of regular use. So we figured why not try the same thing for powerline networking? If you don’t see your question here, let me know. I can put it in the next FAQ article or in an update to this one. 1. Are all powerline adapters the same? No. Powerline networking suffered through […]

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Upgrade OS paths

Upgrade Paths Existing OS Upgrade to Windows 2000? Upgrade to Windows XP? Windows 95 Yes No Windows 98 Yes Yes Windows ME No Yes Windows NT 4.0 Workstation Yes Yes Windows 2000 N/A Yes System Requirements: Windows 2000 Professional Hardware Minimum Recommended Processor Pentium 133 Pentium II or better Memory 64 MB 128 MB or more Disk Space Free 650 […]

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Types of Memory

Type of Memory Description DRAM (Dynamic RAM) Memory that must be refreshed. SRAM (Static RAM) (L1, L2, L3) Does not require refresh. Used for cache memory. SDRAM (Synchronous Dynamic RAM) Synced with the CPU clock. 168-pin. DDR (Double Data Rate) SDRAM Data read on rising and falling edge of computer clock to double the bandwidth of SDRAM. 184-pin, 64-bit DIMM. […]

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SCSI Specifications

SCSI Standard Number/Name Bus Width Throughput (MBps) Cable Pin Count Signaling Max Devices (Incl. Host Adapter) Max Length (M) SCSI-1/ “Regular” SCSI 8 5 50 SE 8 6 HVD 8 25 SCSI-2/ Fast SCSI Fast narrow 8 10 50 SE 8 3­ HVD 8 25 SCSI-2/ Fast wide SCSI 16 20 68 SE 16 3 HVD 16 25 SCSI-3/SPI Ultra […]

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File System

FAT16 Advantage Disadvantage Compatibility with all Microsoft OS and some UNIX Root folder limited to 512 entries MS-DOS boot floppy can access 4 GB theoretical size 2 GB maximum in Windows XP Efficient for small volumes (< 256 MB) Boot sector not backed up No file system security No compression scheme FAT32 Advantage Disadvantage No limit on number of root […]

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Drive Interface Standards

Interface Standard Speed Notes IDE/ATA 2.1 MBps – 8.3 MBps 528 MB limit PIO modes 0-2 ATA-2/Fast ATA 16.6 MBps > 528 MB, 4 IDE devices PIO modes 3-4 DMA 1-2 ATA-3 Nominal speed increase SMART ATAPI-4, Ultra ATA, Fast ATA-2, Ultra DMA Modes 0-2, DMA/33 33 MBps Introduced DMA modes and 80-conductor cable ATAPI-5, Ultra ATA/66, Ultra DMA/66 66.6 […]

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Command Line Utilities

Attrib Displays, sets, or removes the read-only, archive, system, and hidden attributes assigned to files or directories. Used without parameters, attrib displays attributes of all files in the current directory. Syntax attrib [{+r | -r}] [{+a | -a}] [{+s | -s}] [{+h | -h}] [[Drive:][Path] FileName] [/s[/d]] Parameters +r Sets the read-only file attribute. -r Clears the read-only file attribute. […]

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Major Operating System Files

Windows 9x AUTOEXEC.BAT Plain text file. Batch file that executes command prompt instructions. Configures command prompt environment and loads TSRs. COMMAND.COM Command interpreter. Provides user interface to command prompt & processes keyboard commands. Contains other internal commands such as CD, COPY, VER, DIR. CONFIG.SYS Plain text file. Activates memory areas and loads real-mode device drivers using “DEVICE=” (Always use full […]

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