Computer Analysis Lecture Notes - Computer Analysis January 28 People to know o 1937 John Atanasoff Clifford Berry designed and built the first digital

Computer Analysis Lecture Notes - Computer Analysis January...

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Computer Analysis January 28 People to know o 1937- John Atanasoff & Clifford Berry designed and built the first digital computer, called ABC o 1943- Alan Turing designed computer to break German codes o 1945 – John Von Neuman memory hold data & programs o 1946 – John Mauly & J. Presper Eckert, Jr. completed the first large-scale, general purpose computer called the ENIAC (Electronic Numerical Ingrator and Computer) o 1951 - UNIVAC (Universal Automatic Computer) first commercially available computer o 1952 – Grace Hopper paper that documents the idea of higher level programming language What is a Computer? o A computer is an electronic device, operating under the control of instructions stored in its own memory. o Information Processing Cycle Collects data (input) Processing Produces information (output) The Components of a Computer o A computer contains many electric, electronic, and mechanical components known as hardware Input Device – allows you to enter data and instructions into a computer Output Device – hardware component that conveys information to one ore more people System Unit – Case that contains the electronic components of the computer that are used to process data Storage Device – holds data, instructions, and information for future use Communications Device – enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices. The Components inside the System Unit o Motherboard (aka System-board) – CPU (Central Processing Unit, Processor, Micro Processor), RAM (random access memory ) (aka primary memory) o Video Display Adapter Card – what interfaces to the monitor. Card = board, PCB (printer circuit board) o Disk Controller Card – control peripherals o Power Supply o Fan o Ethernet Card – focus on network. NIC (network interface card) o Disk Drives – Hard, Floppy, CD, USB, DVD The Components of a Computer o Central Processing Unit (CPU) Also called a processor
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