History of Computers
generation computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous,
taking up entire rooms. The vacuum tube was developed by Lee De Forest. A
vacuum tube is a device generally used to amplify a signal by controlling the
movement of electrons in an evacuated space.
- Use of vacuum tubes to make circuits
- Use of magnetic drums
- Use of machine language and symbols in instructions
- Very small amount of storage space
- Use of punch cards as I/O devices
- Huge in size and poor in mobility
- Very slow and less reliable output
- Use of high electricity
- Generates too much heats
- Complex and expensive to maintain
- Integrated circuits instead of individual transistors.
- Smaller, cheaper, more efficient and faster than second generation computers.
- High-level programming languages.
- Magnetic storage.