System specifications - ThinkPad 240 (models 31x and 35J only)
Physical specifications
Width: 260.0 mm (10.2 in)
Depth: 202.0 mm (8.0 in)
Height: 26.6 mm (1.05 in)
Weight: 1.35 kg (2.98 lbs) with standard three-cell battery
(1) Actual weight may vary depending on vendor components, manufacturing process, or options. Weight does not include external diskette drive.
Electrical specifications
Universal AC adapter: 100-240 V AC, 1.2-0.7A, 50 to 60 Hz
Li-Ion battery pack: 11.1 V, 1.4 AH
Heat dissipation
48 K Cal/H
Acoustic noise level Class 3D (office environment)
Sound pressure level (operator position): 40 dB (operating)
Sound power level: 5.1 Bels (operating), 4.8 Bels (idling)
NOTE: The noise emission level stated is the declared (upper limit) sound power level, in Bels, for a random sample of machines, typically configured, and operating in idle mode; for example, powered on, but no DASD read/write or other I/O activity. All measurements made in accordance with ANSI S12.10, and reported in conformance with ISO 9296.
Operating environment ThinkPad computers are designed, built, and tested for high quality and reliability. When used properly in standard business environments, a ThinkPad system should be a reli able computing asset for many years. However, harsh environments and abuse can damage ThinkPads since they are not intended to withstand extreme temperatures, dust, shock, or other severe physical environments.
ThinkPad systems should not be used in unsuitable environments. For example, a ThinkPad system should not be used in non-stationary environments, such as in-vehicle installations, without additional casing or shock-dissipation. IBM warrants that the ThinkPad will conform to its Official Published Specifications when used in a suitable physical operating environment.
Air Temperature: 0 to 8,000 ft
Operating: 5 degrees to 35 degrees C (41 degrees to 95 degrees F) (without diskette)*
Operating: 10 degrees to 35 degrees C (50 degrees to 95 degrees F) (with diskette)*
System off: 5 degrees to 43 degrees C (41 degrees to 110 degrees F)
Storage/shipment: -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)
Wet bulb (maximum): 29.4 degrees C (85 degrees F)
Air Temperature: 8,000 to 10,000 ft
Operating: 5 degrees to 31.3 degrees C (41 degrees to 88 degrees F) (without diskette)*
Operating: 10 degrees to 31.3 degrees C (50 degrees to 88 degrees F) (with diskette)*
System off: 5 degrees to 43 degrees C (41 degrees to 110 degrees F)
Storage/shipment: -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)
Wet bulb (maximum): 25.7 degrees C (78 degrees F)
* Without frosting or condensing
NOTE: The maximum temperature when the system on is linearly decreased from 8,000 ft to 10,000 ft.
Relative humidity
Operating: 8% to 95% (without diskette)
Operating: 8% to 80% (with diskette)
Storage/shipment: 5% to 95%
Altitude 10,000 ft maximum (3,048 m)
Agency approvals System Unit
FCC Class-B
VCCI CLASS B
UL-1950
MOC
CCIB
BCIQ
CB Report
MPR-II
ACA
RFS449
CE Mark
Software requirements The following operating systems support the Thinkpad 240. Refer to the CONSIDERATIONS section for support issues unique to each operating system.
Windows 95
Windows 98
Windows NT Workstation 4.0
Note: Previous versions of these operating systems are not supported; for example, Windows 3.0, MS-DOS 6.0, and more. DOS support is limited to system BIOS support for Operating System installation and PC Doctor DOS support.
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