The first screenshots were made using the first interactive computers around the year 1960. Computer operating systems didn't always be able to create images prior to the 1980s. Sometimes text-only screens could be dumped to a text file, however, the result would capture the content of the screen, not the appearance, nor could graphics screens be saved in this manner. A few systems included a BSAVE command that could be used to store the screen's data in memory. But, this requires access to the BASIC prompt. System with composite video output could connect to a VCR and preserve complete screencasts. But, this would require access to an BASIC prompt. Screenshot kits for conventional (film-based) cameras had an antireflective lens that was attached between the screen lens and the camera lens as well as a closeup lens. Polaroid film was a popular choice for capturing screenshots, because of the speed of results and the close-focus capabilities of Polaroid cameras. 1988 saw the introduction of Spectra film produced by Polaroid. It has the 9.2 x 7.3 size , which is more compatible with CRT screens' 4:3 aspect ratio.
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