By et al., David Groth, Faithe Wempen
The best A+ practise and evaluate ToolFrom the writer of Sybex's best-selling A+ examine advisor comes the streamlined device you want to bone up on serious A+ details: A+ speedy cross. The enclosed CD helps you to perform, perform, perform so that you can strategy the tests with confidence.Coverage includes:Installing, configuring, and upgrading hardwareDiagnosing and troubleshooting problemsPerforming preventive maintenanceAddressing protection and environmental issuesWorking with motherboards, processors, and memoryWorking with printersUnderstanding actual networking techniquesUnderstanding OS fundamentalsInstalling, configuring, and upgrading working structures and applicationsDiagnosing and troubleshooting software program problemsConfiguring community software program
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38 Chapter 1: Domain 1 Installation, Configuration, and Upgrading Chapter 1: Domain 1 Installation, Configuration, and Upgrading 39 Know what RJ-11 connectors are used for. You are likely to be asked what type of connector would be used to connect a modem to a telephone jack. Understand parallel versus serial. Parallel cables carry data eight bits at a time; serial cables carry it one bit at a time. 6 Installing and Configuring Common IDE Devices IDE drives are the most common type of hard drive found in computers.
The larger of the two specifications is known as Wide SCSI-2. It improved data throughput for large data transfers. Another important change was to improve upon the now-limiting 5Mbps transfer rate. The Fast SCSI-2 specification allowed for a 10Mbps transfer rate, thus allowing transfers twice as fast as SCSI-1. So, Wide SCSI-2 transfers data 16 bits at a time, and Fast SCSI transfers data 8 bits at a time but twice as fast (at 10Mbps). SCSI-3, also known as Ultra SCSI, comes in two widths: 8-bit (narrow) and 16-bit (wide), and three speeds: 20Mbps, 40Mbps, and 80Mbps.
2 for specifics on installing RAM and for help selecting the appropriate RAM type for a system. 0 Windows 95 Windows 98 Windows 2000 Professional Windows Me Windows XP 48 RAM Requirement 1MB 4MB (8MB recommended) 16MB (32MB recommended) 4MB (8MB recommended) 16MB (24MB recommended) 64MB 32MB 64MB (128MB recommended) Chapter 1: Domain 1 Installation, Configuration, and Upgrading Chapter 1: Domain 1 Installation, Configuration, and Upgrading 49 Disk Subsystem The disk subsystem consists of the hard drives, the controllers, and the cables used to connect them.