Apple Computer Inc has scored a runaway success with its PowerBook laptop Macintoshes, and a new model is expected to be announced at next week’s Macworld Expo to replace the PowerBook 140 and take over from the ill-fated PowerBook 100 as the entry-level model, according to sources that spoke to MacWorld magazine. The new PowerBook 145 will come with a 25MHz 68030 processor, the paper hears, faster than the 16MHz version of its predecessor, but will be priced at about the same level as the 140, the sources said. Aside from the faster clock speed, the 145 also will have a new feature for the battery-conscious which must mean just about anybody that uses the thing: users will be able to program the 145 to sleep or shut down completely whenever the clamshell unit is closed.
