Apple Lisa
The Lisa was the first personal computer to offer a graphical user interface in an inexpensive machine aimed at individual business users. The Lisa was a more advanced system than the Macintosh of this time in many respects, such as its inclusion of protected memory, preemptive multitasking, a generally more sophisticated hard disk based operating system, a built-in screensaver, an advanced calculator with a paper tape and RPN, support for up to 2 megabytes (MB) of RAM, expansion slots, a numeric keypad, data corruption protection schemes such as block sparing, non-physical file names (with the ability to have multiple documents with the same name), and a larger higher-resolution display. It would be many years before many of those features were implemented on the Macintosh platform. Protected memory, for instance, didn’t reappear until the Mac OS X operating system was released in 2001.
History of Apple Lisa is provided by wikipedia
Apple Lisa – General information
Overview
| Introduced | January 1983 |
| Discontinued | January 1984 |
| Model Identifier | 1 |
| Order Number | Unknown |
| Price | $9,995 |
| Colors | Beige |
| Weight | 48 Ibs. 21.772 KG |
| Dimensions | 13.8” H x 18.7” W x 15.2” D 35.05 cm H x 47.49 cm W x 38.6 cm D |
Hardware
| Processor | Motorola 68000 |
| Processor Speed | 5 MHz |
| Architecture | 16-bit |
| Number of Cores | 1 |
| System Bus | 5 MHz |
| Storage | External 5 or 10 MB Apple ProFile hard disk drive |
| Built-in Memory | None |
| Maximum Memory | 2 MB |
| Memory Slots | 2 – Apple Lisa memory boards |
| ROM | 16 KB |
Display
| Built-in Display | 12” |
| Resolutions | 720 x 364 or 608 x 432 (with Screen Kit) at 60 Hz |
Software
| Software | Lisa Office System 1.0 |
Connections
| Modem | None |
| Serial | 2 – RS-232C 1 – DE-9 |
| Audio Out | Continuously Variable Demodulators (CVSD) |
| Display | 1 – RCA composite video output |
| Expansion Slots | 3 – Apple Lisa expansion slots |
| Media | 2 – Built-in 871 KB Apple FileWare 5.25-inch floppy drivers |
Accesories
| Keyboard | 76-key selectric-style, detached keyboard with 10-key pad |
Power
| Maximum Continuous Power | 270 W |
| Line Voltage | 115 or 230V AC |
Related products
Source: Wikipedia, macstories, ilenta, Apple
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