HISTORY OF COMPUTING

Abacus

Electromagnetic switch

Enormous

Microprocessor

Ada Lovelace

Apple

Laptop

Vacuum tube

electronic devicethat controls the flow of electrons(electric current)in a vacuum

enterprise which started making small computers in the mid-1970s using the Intel 8080 microprocessor

small, personal computer that'sportable

miniature electronic device, which is the part of a computer that controls its main operations

instrumentused for making arithmetic calculations by sliding counters along rods

first computer programmer in history

electrical switch that opens or closes an electric circuit in the presence of a magnetic field

size of the first modern computers, with the size of a room and more than 300kg