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A+ Fast Pass by et al., David Groth, Faithe Wempen

By et al., David Groth, Faithe Wempen

The best A+ practise and evaluation ToolFrom the writer of Sybex's best-selling A+ examine advisor comes the streamlined software you want to bone up on serious A+ details: A+ quickly go. The enclosed CD allows you to perform, perform, perform so that you can strategy the checks with confidence.Coverage includes:Installing, configuring, and upgrading hardwareDiagnosing and troubleshooting problemsPerforming preventive maintenanceAddressing safeguard and environmental issuesWorking with motherboards, processors, and memoryWorking with printersUnderstanding actual networking techniquesUnderstanding OS fundamentalsInstalling, configuring, and upgrading working platforms and applicationsDiagnosing and troubleshooting software program problemsConfiguring community software program

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If possible, run the Setup utility that comes with the printer. A printer may have either a legacy parallel or USB interface. If it’s legacy parallel, both the printer and the PC must be powered off to make the connection; if it’s USB, the connection can be made at any time. UPSs and Surge Suppressors A surge suppressor is just a power strip with electrical protection; it has no direct interactivity with the computer. An uninterruptible power supply (UPS) is like a surge suppressor, but with battery backup capability.

Finally, you terminate the last device on each chain, leaving the adapter unterminated. 25: Cabling internal and external SCSI devices together Note Even though the third technique described is the technically correct way to install termination for the hybrid situation (in which you have both internal and external devices), some adapter cards still need to have terminators installed. Each device must also have a unique SCSI ID number. This number can be assigned by the jumper (with internal devices) or with a rotary switch (on external devices).

The wires are soldered to modular connectors at both ends. These connectors allow the cables to be quickly attached to the devices they connect. Cables may be either shielded or unshielded. This refers to shielding against electromagnetic interference (EMI); it has nothing to do with whether the cable is shielded against dirt or water. 5. The F or M in a connector’s designation is for Female (holes) or Male (pins). 5: Common PC Cable Descriptions Application Null modem Null modem RS-232 (modem cable) RS-232 (modem cable) Parallel printer External SCSI cable 1st Connector DB-9F DB-25F DB-9F DB-25F DB-25M Centronics 50M 2nd Connector DB-9F DB-25F DB-25M DB-25M Centronics 36M Centronics 50M VGA extension cable UTP Ethernet cable Thinnet Ethernet cable Telephone wall cable DB-15M RJ-45M BNC-M RJ-11M or RJ-14M DB-15M RJ-45M BNC-M RJ-11M or RJ-14M Max.

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