Apple Power Macintosh G3 Información técnica descargar pdf (Pagina 6)

SCSI interface

Your computer has one standard SCSI chain, which is capable of transferring data at up to 5

MB per second. The SCSI chain can support up to seven internal and external SCSI devices.

The computer has two internal expansion bays. Each one accepts a 3.5" or 5.25" storage

device that is up to 1.625" (41.3 mm) high. Some models come with a Zip drive already

installed in one of these bays. For information on installing internal SCSI devices in these

expansion bays as well as information on connecting external SCSI devices, see Setting Up

Your Power Macintosh manual.

Clock/calendar

m CMOS custom circuitry with long-life battery

Audio system

m Custom sound circuitry, including a stereo generator (digital-to-analog converter, or

DAC)—capable of driving stereo miniplug headphones or audio equipment—and stereo

sampling hardware (analog-to-digital converter, or ADC) for recording stereo sound

m 16-bit stereo input and output

m Sample rates of 44.1 and 22.05 kilohertz (kHz)

m Preamplifier enabled for input gains greater than 22.5 decibels (dB)

Typical audio specifications

Sound input using the sound input port (≈)

m Input impedance (preamplifier off): more than 80 kilohm (kΩ)

m Maximum input voltage (preamplifier off): 1 Volt (V

rms

)= 2.8 Volts peak-to-peak

), nominal

m Input impedance (preamplifier on): more than 5 kΩ

m Maximum input voltage (preamplifier on): 62 millivolts (mV

rms

) = 175 mV

, nominal

Sound output using the sound output port (-)

m Output impedance: 33 Ω, nominal

m Maximum output voltage: 0.94 V

rms

= 2.65 V

Warning Do not attempt to replace the clock battery yourself. If the clock begins to

lose accuracy, have an Apple-authorized service provider replace the battery. The service

provider will dispose of the battery according to the local environmental guidelines.

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Apple Power Macintosh G3 Información técnica Pagina 6