Generations of computers
Charles Babbage father of computer. (1). 1822 - concept (2). 1837 - design (3). 1st Generation: (1940-1955 or 56) (I). Switching device: Vaccum tubes (II). Memory: Drum memory (III). Language used: Machine language (0,1) binary (IV). Processing speed: 333 micro-seconds (V). Use for: use for scientific purposes. (4). 2nd Generation: (1956-1963) (I). Switching device: Transistors (II). Memory: Magnetic core memory (III). Language used: Assembly language ( low level language) (IV). Processing speed: 30 Micro-seconds (V). Use for: Industries and Companies. (5). 3rd Generation: (1963-1971) (I). Switching device: Integrated Circuits (I.C) (II). Memory: Magnetic core as primary memory (III). Language used: High level language (IV). Processing speed: 100 nano-seconds (V). Use for: Hospitals, Banks, Universities etc. (6). 4th Generation: (1971-2010) (I). Switching device: Large scale integrated Circuit (II). Memory: Semi-conductor memory (II...