Sunday, January 9, 2011

IMSAI 8080

Monday, August 23, 2010

CDC Seagate Sabre 850 MB SMD hard disk drive

ST-8851J 97200-850 Sabre 4 UNFORMATTED CAPACITY _____________________851 FORMATTED CAPACITY (xx SECTORS) __________ AVERAGE SECTORS PER TRACK (with spares)___ ACTUATOR TYPE ____________________________STRAIGHT ARM TRACKS ___________________________________ CYLINDERS ________________________________1,381 HEADS ____________________________________15 DISCS (8 in) _____________________________9 MEDIA TYPE _______________________________OXIDE HEAD TYPE ________________________________THIN FILM RECORDING METHOD _________________________RLL (2,7) EXTERNAL TRANSFER RATE (mbytes/sec) ______2.46 SPINDLE SPEED (RPM) ______________________3,600 AVERAGE LATENCY (mSEC) ___________________8.33 BUFFER ___________________________________ INTERFACE ________________________________SMD O/E BYTES PER TRACK __________________________41,088 SECTORS PER DRIVE ________________________ BYTES PER CYLINDER _______________________616,320 TPI (TRACKS PER INCH) ____________________1,089 BPI (BITS PER INCH) ______________________13,387-19,816 AREAL DENSITY (MBits/sq in) ______________21.6 AVERAGE ACCESS (ms) ______________________15 SINGLE TRACK SEEK (ms) ___________________4 MAX FULL SEEK (ms) _______________________30 MTBF (power-on hours) Class A Room _______100,000 MTBF (power-on hours) Office _____________100,000 POWER DISSIPATION (watts/BTU) ____________95/324.2 POWER REQUIREMENTS: TYPICAL (watts) ______ MAXIMUM (watts) ______ USER MANUAL PART NUMBER __________________83325710 PARTS MANUAL PART NUMBER _________________83325700 MAINT. MANUAL PART NUMBER ________________83325720 THEORY MANUAL PART NUMBER ________________83325690 DIAGRAMS MANUAL PART NUMBER ______________83325730 OTHER ____________________________________Dual Access, Sweep Cycle Capability Physical: Height (inches/mm): 4.75/120.65 Width (inches/mm): 8.50/216 Depth (inches/mm): 14.7/373.38 Weight (lbs/kg): 32/15

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