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Core Technology First-generation computers relied on vacuum tubes for circuitry and magnetic drums for memory. These were the first electronic digital computers.
Core Technology First-generation computers relied on vacuum tubes for circuitry and magnetic drums for memory. These were the first electronic digital computers.
Key Characteristics
Size: Massive systems that often occupied entire rooms.
Input/Output: Operations were performed using punched cards and paper tape; output was displayed on printouts.
Programming: Relied on machine language (the lowest-level programming language understood by computers) to perform operations. They could only solve one problem at a time.
Maintenance: They were expensive to operate, used a vast amount of electricity, and generated a lot of heat, which often caused malfunctions.
Notable Examples
ENIAC: The first general-purpose electronic computer.
UNIVAC: The first commercial computer delivered to a business client.
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