Texas Instruments Red LED TI-59 Programmable Personal Calculator with Magnetic Strip for Storing & Reading Programs, Circa 1977 : 無料・フリー素材/写真
Texas Instruments Red LED TI-59 Programmable Personal Calculator with Magnetic Strip for Storing & Reading Programs, Circa 1977 / France1978
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | The 1977 price for the calculator was $299.95. Included with the calculator is a pack of software.From Wikipedia: The TI-59 was an early programmable calculator, manufactured by Texas Instruments from 1977. It was the successor to the TI SR-52, quadrupling the number of "program steps" of storage, and adding "ROM Program Modules" (an insertable ROM chip, capable of holding 5000 program steps) and a magnetic card reader for external storage. It was one of the first LED calculators with the capability and flexibility to take on many real-world calculation challenges, and quickly became popular with professionals in many fields. |
| 撮影日 | 2013-02-18 07:37:44 |
| 撮影者 | France1978 , USA |
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| カメラ | iS2132 , Polaroid |
| 露出 | 0.017 sec (1/60) |
| 開放F値 | f/3.3 |