GENERAL KNOWLEDGE

Detailed explanation-1: -The machine, like Babbage’s, was huge: more than 50 feet (15 metres) long, weighing five tons, and consisting of about 750, 000 separate parts, it was mostly mechanical. For input and output it used three paper-tape readers, two card readers, a card punch, and two typewriters.

Detailed explanation-2: -These were the first-generation computers that relied on vacuum tube logic circuitry for programming. These were placed in rooms bigger than an average house and would break down very often.

Detailed explanation-3: -A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.