MacBook Pro 15-inch (Core 2 Duo, 2.4 GHz, early 2008)

This MacBook Pro 15-inch laptop was released in early 2008 with an identical case design as its predecessor. It shipped with a 2.4 GHz Core 2 Duo (Penryn) processor and 2 GB of 667 MHz SDRAM. It contained a 200 GB hard drive and 8X DVD RW/CD-RW SuperDrive. The display was an LED-backlit 15.4-inch widescreen at 1440×900 resolution.

Although the external case did not change from the “Santa Rosa” processor version of the laptop that preceded it, the keyboard design removed the numeric keypad accessed using the fn (function) key and replaced the right-side enter key with an additional option key, the same laptop keyboard layout still in use now (as of February 2020). This MacBook Pro also used the same trackpad design as the MacBook Air of the time, adding multi-touch gestures.

Ports on this MacBook Pro included an ExpressCard slot, Gigabit Ethernet, FireWire 400, Firewire 800, two USB 2.0 ports, optical digital audio in/out, and DVI out. Wireless connections included AirPort Extreme (802.11a/b/g/n) and Bluetooth 2.1. It also included an iSight video camera and MagSafe power connector, both standard at the time.

When I acquired this laptop, its battery had burst while installed in the laptop. The battery failure caused the battery to bow in the center and it was lodged in the case. Using a few iFixIt spatula tools, I was able to extract it safely and then properly dispose of the ruptured battery.

Source: EveryMac

iBook G4 (Mid-2005, 2005)

The iBook G4 (Mid-2005) featured a 1.33 GHz PowerPC G4 processor, 512 MB of RAM, a 40 GB Ultra ATA/100 hard drive, a slot-loading DVD-ROM/CD-RW Combo drive, and standard AirPort Extreme (802.11g)/Bluetooth 2.0. The screen was a 12.1-inch TFT XGA active matrix display at 1024×768. The case was opaque white, rather than the translucent white used in earlier iBook models. 

This iBook model added a Sudden Motion Sensor and scrolling trackpad. The Sudden Motion Sensor stopped the hard drive from spinning if the iBook was dropped, thus minimizing damage and potential data loss. This was the first consumer-level Apple laptop to gain scrolling trackpad features, allowing users to use two-finger scrolling and two-fingering panning (a feature first introduced in PowerBook G4 laptops).

This and other iBook models were used extensively in the schools where I served as Technology Director among teachers and students. At the time, 1:1 laptop programs had just been adopted in a few school districts (where every student is issued a laptop for learning throughout the school day). At the time of the iBook G4, only one public school district in Chicago’s North Shore had adopted a 1:1 program for students, while most school districts had begun to issue laptops to staff and administrators.

References: EveryMac.com

PowerBook 520 (1994)

The PowerBook 520 featured a 25 MHz 68LC040 processor, 4 MB or 12 MB of RAM, and a 160 MB or 240 MB hard drive. The screen was a 9.5-inch grayscale passive-matrix display. 

The PowerBook 500 series laptops introduced the “trackpad” to the Macintosh: the cursor followed the movement of your finger on a pad rather than spinning a plastic trackball with your finger. The trackpad has proven to be a revolutionary input device and has been used since in most notebooks. The PowerBook 500 series also introduced the idea of dual-swappable bays that could be used to hold either one battery and a PCMCIA adapter or two batteries.

Source: EveryMac.com

PowerBook 520c (1994)

The Macintosh PowerBook 520c featured a 25 MHz 68LC040 processor, 4 MB or 12 MB of RAM, and a 160 MB, 240 MB, or 320 MB hard drive. The screen was a 9.5-inch color dual-scan display.

The PowerBook 500 series laptops introduced the “trackpad” to the Macintosh: the cursor followed the movement of your finger on a pad rather than spinning a plastic trackball with your finger. The trackpad has proven to be a revolutionary input device and has been used since in most notebooks. The PowerBook 500 series also introduced the idea of dual-swappable bays that could be used to hold either one battery and a PCMCIA adapter or two batteries.

Source: EveryMac.com

PowerBook 540 (1994)

The PowerBook 500 series laptops introduced the “trackpad” to the Macintosh: the cursor followed the movement of your finger on a pad rather than spinning a plastic trackball with your finger. The trackpad has proven to be a revolutionary input device and has been used since in most notebooks. The PowerBook 500 series also introduced the idea of dual-swappable bays that could be used to hold either one battery and a PCMCIA adapter or two batteries.

The Macintosh PowerBook 540 featured a 33 MHz 68LC040 processor, 8 MB or 12 MB of RAM, and a 240 MB hard drive. The screen was a 9.5-inch grayscale active-matrix display.

The PowerBook 540 was similar to the PowerBook 520 that was being offered at the same time, but the PowerBook 540 had a faster processor and a higher quality active-matrix display.

Source: EveryMac.com