Osborne Executive
The Osborne Executive was the second portable computer model of the company Osborne Computer Corporation from 1983 and successor of the legendary Osborne 1 Compared to its predecessor, the Executive especially on a larger screen and an enlarged to 128 kilobytes of RAM memory possessed. He was particularly in competition with portable computers such as the Kaypro II, which was equipped with a 9- inch screen and was offered reasonably priced.
In September 1983, Osborne was forced to declare bankruptcy. Therefore, the Executive was only in limited numbers on the market. As a possible reason for the bankruptcy was the so-called " Osborne effect": successor models were publicly touted, long before they were available. While the customers already waiting for the better "Executive", remained the " Osborne 1" in the camps are and prices fell. Employees of Osborne, however, refer to the high competition from better -equipped and better models of the manufacturer Apple and Kaypro.
Hardware
- 4 MHz Z80 CPU
- 128 kilobytes of RAM
- 69 -key keyboard with 12 keys including numeric
- 7-inch CRT monitor, 80 characters × 25 lines, monochrome amber
- Two 5 ¼ - inch floppy disks in a half-height
- IEEE -488 interface, for use as a Centronics printer port
- Two RS-232 serial interfaces 50 to 9600
Software
The Osborne Executive was delivered with a software package, in addition to the operating system CP / M 3.0 (CP / M Plus) included the word processing program WordStar, the spreadsheet program SuperCalc, the programming languages and CBASIC MBASIC as well as some other programs.
Compatibility
The Osborne Executive supported several disk formats, including
- Osborne 1, single and double density
- IBM PC ( CP/M-86 )
- DEC VT 180