In April 1981, NEC announced a new family of computers comprised of the NEC System 20/25 and 5 other models. This family covered a wide range while retaining the same basic software -- from the personal computer high-end, to the general-purpose small computer low-end.
These products had the following main features:
1) The bottom-end model, the NEC System 20/25, had the capabilities of an office computer(*), combined with the ease-of-use of a personal computer. In addition to the standard keyboard, it was also equipped with a touch keyboard enabling one-touch item input.
- *: An office computer is a small business computer specialized in office operation.
3) To enhance Japanese language processing capabilities, these products offered: a Japanese language printer (60 lines/min (24x24 dot), or 100 lines/min (18x18 dot)), a Japanese language serial printer (70 char/second (18x18 dot)), a Japanese language CRT display (1,000 char (color, monochrome)), a format overlay function, and kanji (Chinese character) dictionary files for finance/accounting, payroll, sales management and production management.
|Item||NEC System 20/25||NEC System 50/35||NEC System 100/45||NEC System 100/85||NEC System 150/55|
|Central processing unit||Max. memory capacity||48KB (Note 1)||48KB (Note 1)||512KB||768KB||1,024KB|
|Arithmetic element||MOS LSI||Bipolar LSI|
|Display station||Standard processing||Alphanumeric and kana, 2,000char (80char x 25line), 120 kanji|
|Japanese processing||-||Kanji 1,000char (40char x 25line), 640char (40char x 16line)
Alphanumeric and kana 2,000char (80char x 25line), approx. 8,000 different characters
|Number connected||Max. 4||Max. 3||Max. 4||2|
|Magnetic tape||Cartridge type||-||-||1/4inch width, 4track/tape|
|Reel type||-||-||1/2 width, 9track/tape x2|
|Serial printer||Standard processing||35char/s, 100char/s||35char/s, 100char/s, 200char/s|
|Japanese language processing||-||70char/s|
|Line printer||-||-||100line/min, 200line/min||100line/min, 400line/min, 530line/min, 200line/min, 420line/min (for OCR)|
|Japanese language printer||-||60line/min, 100line/min|
|Language||Package created with COBOL-4 and SMART||COBOL-4
|High-level COBOL, COBOL-4
Note 1: User area