Introduction to Computers PDF
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Summary
This document provides a basic introduction to computers. It covers topics such as programs, hardware, including components like the CPU, main memory, secondary storage, input devices, output devices, and software. The document's structure and content is well organized to explain computer operations and concepts in a clear and concise manner.
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Introduction to Computers. Program Set of instructions that a computer follows to perform a task. Programs are commonly referred to as software. Software is essential to a computer. Controls everything the computer does. Hardware All of the physical devices, or components, of which a com...
Introduction to Computers. Program Set of instructions that a computer follows to perform a task. Programs are commonly referred to as software. Software is essential to a computer. Controls everything the computer does. Hardware All of the physical devices, or components, of which a computer is made. CPU Part of a computer that actually runs programs. Most important component in a computer. Today, CPUs are small chips known as microprocessors. Main Memory Computer’s work area. Computer stores a program. RAM CPU is able to quickly access data stored at any random location in RAM. Volatile type of memory. Secondary Storage Devices Hold data for long period of time. Disk drive. External storage devices. Flash memory. Input Devices The component that collects the data and sends it to the computer is called an input device Keyboard Mouse Touchscreen Scanner Microphone Digital camera. Output Devices Data the computer produces for people or for other devices. Video displays Printers Software Software is not optional. Everything is under the control of software.
