The IBM 2250 Graphics Display Unit was a vector graphics display system by IBM for the System/360; the Model IV attached to the IBM 1130.

2021年3月11日 · The IBM 2250 Display Unit was originally shipped with the IBM 1130 computer, introduced in 1965. The 2250 could also be attached to IBM 360-series mainframes, as ours was to the 360/91. Like most IBM terminals, attachment was via control unit (or in this case, direct channel) rather than communication port.

IBM 2250图形显示单元 是 IBM 的 矢量图形 显示 系统/360 ； IBM 1130 附加的IV型号。 IBM 2250图形显示单元 于1964年与System/360宣布。 完整的2250 III系统在1970年成本约为280,000美元，尽管最多4个显示器可以共享一个单个控制器，从而将每张显示成本降低了40％ 。 在 计算机 的内存中存储了1024 x 1024网格上的线段（向量）的 显示 列表（向量），或者在2250的可选缓冲区中存储，并在2250年代的 CRT 上重新粉刷为每秒40次。 计算机通过更改 …

System/360 Model 30 with 2250 at approximately $10,000 a month. In addition to providing a low-cost graphic system, the 1130/2250 can b. attached to the System/360 for a local or remote configuration. Each of the 2250 models i. del 3 provides additional functions not included in the Mode. 1. In addition, multiple units may share the 2840 Con.

The 2250 graphical display unit included a 21-inch monitor with 1024x1024 resolution, a dedicated display-list processor, a light pen, and a keyboard. With this device, the 1130 could serve as a standalone graphics workstation, and as a slave graphics terminal for the System/360.

The IBM 2250 Display Unit Model 4 (Frontispiece) is a programmable device which attaches to the IBM 1130 computing system and operates under control of a stored program in the 1131 Central Processing Unit (CPU). Two basic 2250-4/1130 system configurations (Figure 1) are available to supplement IBM's display products: (1) a stand-

The IBM 2250 Graphics Display Unit was announced as part of System/360 in 1964. Unlike most modern computer displays, which show images in raster format, the IBM 2250 used vector graphics. A display list of line segments (vectors) on a 1024 by 1024 grid was stored in the computer's memory and repainted on the 2250s CRT up to 40 time per second.

The IBM 2250 Display Unit, Model 4 (Figure 68) is a cathode-ray tube display unit that attaches to the IBM 1130 Computing System. The 2250 Display Unit operates under the control of a display order program and input/output (I/O) control commands.

This document presents detailed information about IBM 2250 Display Unit Model 3/IBM 2840 Display Control Model 2 pro- gramming, operation, and special features.

2011年3月1日 · The IBM 2250 graphics display, introduced in 1964. 1024×1024 squares of vector-based line art beamed at you at 40Hz, with a handy light pen cursor. Much more handy than those older displays that just exposed a sheet of photographic film for later processing!