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- AppleCD SC® Plus Disk Drive-Technical Specifications
-
- Copyright 1991, Apple Computer, Inc.
-
- The playback medium for the AppleCD SC CD-ROM unit is a 12-centimeter optical
- disc installed in a CD caddy. Any CD-ROM or audio compact disc is compatible.
-
- The data capacity in mode #1 is 656 megabytes; 748 megabytes in mode #2. The
- unit access from 1 recording surface. The unit has a capacity of more than
- 270,000 blocks per disc. Data per block is 2,048 bytes in mode #1; 2,336 bytes
- in mode #2.
-
- Audio playback time is more than 1 hour with a frequency response of 20 to
- 20,000 hertz.
-
- Characteristics include:
- •An average of 380 ms is the typical access time (including latency). The
- maximum first to last block access time is typically 650 ms.
- •The data streaming rate is 150K/second in mode #1; 171K/second in mode #2.
- •The block rate is 75 blocks/second.
- •SCSI bus transfer burst rate is 1.5 MB/second.
- •Rotational speed is approximately 230 to 530 rpm (variable)
- •Startup time is 5 typically seconds, but media-dependent.
- •Spin-down time is typically 2 seconds.
-
- Electrical requirements:
- •100 to 240 volts AC for line voltage
- •Frequency is 50 to 60 hertz with maximum power of 40 watts
-
- Environmental requirements:
- •Operating temperature: 50 - 104 degrees Farenheit (10-40 degrees Centigrade)
- •Storage temperature: -22 - 122 degrees Farenheit (-30 - 50 degrees Centigrade)
-
- Size and Weight:
- Height: 3.31 in. (8.4 cm)
- Width: 9.69 in. (24.6 cm)
- Depth: 10.47 in. (26.6 cm)
- Weight: 8.8 lb (8 kg)
- _______________________________________________________________________________
- Apple Products
- New Apple Products
- AppleCD SC Plus Disk Drive
-
- 17-Jun-91
-
-