computer input microfilm的意思|示意

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Computer input：

Computer input refers to the way that data is entered into a computer. It can be in the form of text, audio, video, images, and other data formats. The most common way to input data into a computer is through a keyboard. Using the keyboard, data is entered into the computer through characters that are typed.

Microfilm：

Microfilm is a method of storing information using a microscopic image of text or artwork on a long strip of film. This method was developed in the late 19th century and was predominantly used from the 1930s to the late 20th century. Microfilm stored records such as legal documents, photographs, maps, newspapers and books. It was an efficient way of storing data and could be easily accessed without taking up a lot of space.

Microfilm was used before the invention of digital storage devices. It used a series of tiny images which were taken using a microfilm scanner and then displayed on a screen. The images could then be read. The data stored on a microfilm could be edited, printed and even copied.