Computer System


Computer system is a system of hardware, software, networking, and human components that function together.

3 Major Components

  1. CPU - supports data processing
  2. Storage - stores ephemeral programs and data
  3. Peripheral devices - support input and output operations

Von Neumann Architecture

  • Another name for IPOS model
  • Computer system model

Types of Computers

Computers are categorized based on their size and processing speed.

Supercomputers are the biggest and fastest computers, designed to process huge amounts of data.

  • built as a system of thousands of interconnected processors
  • Usage:
    • scientific and engineering applications such as weather forecasting, scientific simulations, and nuclear energy research

Mainframe computers are designed to support hundreds or thousands of users simultaneously.

  • support multiple programs at the same time
  • Usage:
    • big organizations that manage and process high volumes of data

workstation is a single-user computer designed for technical or scientific applications.

  • has a faster microprocessor
  • large amount of RAM
  • high-speed graphics cards
  • generally performs a specific job with great expertise
  • Usage:
    • Graphics, music, and engineering design departments

microcomputer, personal computer, is a general-purpose computer for individual use.

  • Desktops, laptops, and handheld or mobile devices