Macintosh Powerbook 145B
This video was recorded for the Handmade Network Time Machine.
According to Wikipedia:
The PowerBook 140 was released in the first line of PowerBooks. It was the mid-range PowerBook, between the low-end 100 and the high-end 170. As with the PowerBook 170, and unlike the 100, this PowerBook featured an internal floppy drive.
The PowerBook 145 was a speed-bumped 140, increasing the processor speed from 16 MHz to 25 MHz. The standard hard drive was upgraded from 20 MB to 40 MB. The 145 also introduced a new feature for the battery-conscious: users would be able to configure the 145 to sleep or completely shut down whenever the clamshell unit was closed. Though a direct descendant of the 140, the 145 was actually the replacement for the PowerBook 100 as the low-end model, the 140 having been superseded by the new mid-level PowerBook 160.
The PowerBook 145B was the same as the PowerBook 145 that came before it, but with a lower price and additional 2 MB of RAM soldered to the motherboard. The only codename for this model is Pikes Peak.
Unlike previous Mac models but like the Performas, the 145B did not ship with a full set of system disks. System 7.1 was preinstalled on the internal hard disk, and a single system startup disk was included. The package also included two utilities that provide basic backup and restore functions. Although the 145B shipped with System 7.1, it can, in fact, run System 7.0.1, however it will incorrectly report as a 140 in “About This Macintosh...”
The 145 was superseded by the PowerBook 150 as the next low-end PowerBook.
Processor - Motorola 68030, running at 25 MHz
RAM - 4 MB on board, can be expanded to 8 MB
ROM - 1 MB
HDD - 40–120 MB
Floppy - 1.44 MB Superdrive
OS - System 7.1–Mac OS 7.6.1
ADB - 1 Port
Serial - 2 Ports
Modem - optional (used for this model's expansion port)
Screen - passive matrix, 1bpp 640×400
https://support.apple.com/kb/SP144?lo...