coordinated with the official corporate look, they also adopted a raised series of ridges mimicking the indented lines on the desktops. The innovative look not only unified their entire product line, but set Apple apart in the marketplace. These early series would be the last to utilize the aging Snow White look, with the 190 adopting a new look along with the introduction of the 500 series. The first series of PowerBooks were hugely successful, capturing 40% of all laptop sales. Despite this, the original team left to work at Compaq, setting back updated versions for some time. When attempting to increase processing power, Apple was hampered by the overheating problems of the 68040; this resulted in the 100-series PowerBook being stuck with the aging 68030, which could not compete with newer-generation Intel 80486-based PC laptops introduced in 1994. For several years, new PowerBook and PowerBook Duo computers were introduced that featured incremental improvements, including color screens, but by mid-decade, most other companies had copied the majority of the PowerBook's features. Apple was unable to ship a 68040-equipped PowerBook until the PowerBook 500 series in 1994. The original PowerBook 100, 140, and 170 were replaced by the 145 (updated to the 145B in 1993), 160, and 180 in 1992. The 160 and 180 having video output allowing them to drive an external monitor. In addition, the PowerBook 180 had a superb-for-the-time active-matrix grayscale display, making it popular with the Mac press. In 1993, the PowerBook 165c was the first PowerBook with a color screen, later followed by the 180c. In 1994, the last true member of the 100-series form factor introduced was the PowerBook 150, targeted at value-minded consumers and students. The PowerBook 190, released in 1995, bears no resemblance to the rest of the PowerBook 100 series, and is in fact simply a Motorola 68LC040-based version of the PowerBook 5300 (and the last Macintosh model to utilize a Motorola 68k-family processor). Like the 190, however, the 150 also used the 5300 IDE-based logic-board architecture. From the 100's 68000 processor, to the 190's 68LC040 processor, the 100 series PowerBooks span the entire Apple 68K line, with the 190 even upgradable to a PowerPC processor. PowerBook Duo In 1992 Apple released a hybrid portable/desktop computer, the PowerBook Duo, continuing to streamline the subnotebook features introduced with the PowerBook 100. The Duos were a series of very thin and lightweight laptops with