Macintosh PowerBook 145/145B

Introduced: August 1992
Terminated: June 1993


The only difference between the PowerBook 140 and the PowerBook 145 was the speed.  The 16MHz processor had been improved to 25MHz.


Following on the success of the Powerbook 140, the PowerBook 145 was a simple upgrade that maximized improvements in technology for $2,150.  The 145B was identical to the PowerBook 145.  The only difference was the lower price, $1,300.


Processor: Motorola 68030
Processor Speed: 25 MHz
Coprocessor: None
Cache: 0.5k L1
System Bus: 25 MHz
Hard Drive: 40 or 80 MB
Media: 1.44 MB floppy
Weight and Dimensions (US): 6.8 lbs., 2.25” H x 11.25” W x 9.3” D
Weight and Dimensions (Metric): 3.1 kg, 5.7 cm H x 28.6 cm W x 23.6 cm D
Original Mac OS: System 7.0.1
Maximum Mac OS: Mac OS 7.6.1
Firmware: Macintosh ROM
Logicboard RAM: 2 (145) or 4 MB (145B) of PSRAM
Maximum RAM: 8 MB
Type of RAM Slots: 1 - PowerBook 1xx
Minimum RAM Speed: 100 ns
Interleaving Support: No
Graphics Card: None
Graphics Memory: None
Built-in Display: Film SuperTwist Nematic (FSTN) (Passive Matrix) LCD
Resolutions: 640 x 400
Display Connection: None
Expansion Slots: Internal 20-pin connector for optional 2400-baud modem card
Expansion Bays:—
Hard Drive Bus: 40-pin SCSI
Backup Battery:—
Power Adapter:—
System Battery: 2.5 ampere-hour NiCad
Max Watts: 17 W
Ethernet: None
Infrared: None
Modem: None
ADB: 1
Serial: 2
USB: None
FireWire: None
Audio In: 1 - 3.5-mm analog input jack, 1- Built-in microphone
Audio Out: 1 - 3.5-mm analog output jack, 1 - Built-in speaker


The PowerBook 145 was introduced in August of 1992.  The PowerBook 145B was introduced with the lower price in June of 1993 and was discontinued in July of 1994.



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