![]() ![]() Unlike later portable computers from Apple and other manufacturers, the battery is wired in-series with the AC power supply. ![]() The lead-acid battery on the non-backlit Portable offered up to ten hours of usage time, and the Portable draws the same amount of power when turned off, and when in sleep mode. In the newer backlit Portable, Apple changed SRAM memory to the less expensive (but more power-hungry) pseudo-SRAM, which reduced the total RAM expansion to 8 MB, and lowered the price. The Portable used expensive SRAM memory in an effort to maximize battery life and to provide an "instant on" low-power sleep mode. ![]() #DIRECT TV APP FOR MAC POWERBOO UPGRADE#An upgrade kit was also offered for the earlier model as well, which plugged into the ROM expansion slot. The backlight feature was a welcomed improvement, but it reduced the battery life by about a half. Consequently, in February 1991, Apple introduced a backlit Macintosh Portable (model M5126). Display issues ĭespite the dramatic improvement in terms of ergonomics offered by the responsiveness, sharpness, and uniformity of its active matrix panel, one of the primary drawbacks of the Portable was poor readability in low-light situations. The main contributor to the Portable's weight and bulk was its lead-acid battery. At 16 pounds (7.2 kilograms) and 4 inches (10 centimetres) thick, the Portable was a heavy and bulky portable computer. It holds 40 MB of data, consumes less power compared to most hard drives of its time, and it has a proprietary SCSI connector adapters that allow standard SCSI drives to be used on the Portable exist, but they are expensive. It was a custom-engineered Conner CP-3045 (known by Apple as "Hard Disk 40SC"). Most Macintosh Portable units came with a hard drive. A Portable could ship with one floppy drive, with two floppy drives, or with a hard drive and a floppy drive. There were three drive configurations available for Macintosh Portable. The pointer was a built-in trackball that could be removed and located on either side of the keyboard. Macintosh Portable can run Macintosh System 6.0.4 through System 7.5.5. The Portable has features similar to the Atari STacy, a version of their Atari ST computer which contained a built in keyboard and monitor. ![]() The Portable was discontinued in October 1991. The machine was designed to deliver high performance, at the cost of increased price and weight. The Portable was one of the early consumer laptops to employ an active matrix panel-only the most expensive of the initial PowerBook line, the PowerBook 170, had such a panel. It featured a fast, sharp, and expensive black-and-white active matrix LCD screen in a hinged design that covered the keyboard when the machine was not in use. It is the first battery-powered Macintosh, which garnered significant excitement from critics, but sales to customers were quite low. Macintosh Portable is a portable computer designed, manufactured, and sold by Apple Computer, Inc. (with hard drive) US$7,300 (equivalent to $15,200 in 2020)ġ.44 MB double-sided floppy drive, 40 MB 3.5″ Conner hard driveĩ.8″ black and white active matrix LCD screenĥW, 13 amps, lead-acid batteries, AC Charger JSTOR ( September 2018) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed.įind sources: "Macintosh Portable" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |