Contents1 What is software & Hardware?2 Types of Software Types of Hardware3 Conclusion4
WHAT IS SOFTWARE AND HARDWARE ? Computer Instructions or data, anything that can be stored electronically is Software. Hardware is one that is tangible. The storage devices (Hard disk, CD’s etc.,), mouse, keyboard CPU and display devices (Monitor) are Hardware. FOR EXAMPLE: SOFTWARE – MSOFFICE HARDWARE – NETWORK SERVER
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Types of software Application SoftwareSystemsoftware Open source Software Proprietary Software
DiagramSystem software is a term referring to anycomputer software which manages and controlsthe hardware so that application software canperform a task.Application Software includes programs that doreal work for user.Open source software (OSS) is computer softwarewhose source code is available under a license thatpermits users to use, change, and improve the software,and to redistribute it in modified or unmodified form. Proprietary software (also called non-freesoftware) is software with restrictions on using,copying and modifying as enforced by theproprietor.
WHAT ELSE IS THERE? Programming Languages:• Machine Language • Consists of the 0s and 1s of binary code• High Level Languages • Must be ‘complied’ (translated to machine language) • e.g. - COBOL, C++, Visual BASIC• Programming tools designed to support the Web • HTML, XML – page formatting tools • Java - Platform-independent programming language • .NET - Microsoft business strategy aimed at convergence of personal computing and the Web
TYPES OF HARDWARE Power supplyMotherboard Processor Cabinet
TYPES OF HARDWARE RAM STORAGE DEVICE What Else is CD- ROM There? KEY BOARD & MOUSE MONITOR
RAM OR RANDOM ACCESS MEMORY Holds instructions for processing data, processed data, and raw data. Ram is measured by: Capacity (in Megabytes or Gigabytes) Speed (in Nanoseconds)
STORAGE DEVICE Electronic devices that store, retrieve, and save instructions and data. Today’s microcomputers or PCs include several types of storage devices. Capacity and speed are important considerations when selecting a new storage device for a PC.
HARD DISK Capacity is measured in gigabytes (GB or billions of bytes). Typically permanently installed. Used to store operating system, application software, utilities and data. Magnetic storage device
FLOPPY DISK DRIVES Capacity is 1.44 to 2.0 megabytes (MB or millions of bytes). Storage device with the smallest capacity Most portable storage media Magnetic storage device
CD- ROM DRIVES Typically installed on all new computer systems. (Were add-on device until the mid 1990’s). Capacity is 600 to 750 megabytes (MB or millions of bytes). Most mass-produced commercial software is packaged on a CD.
KEYBOARD & MOUSE Input devices gather and translate data into a form the computer understands. Primary input device: Keyboard - Most common input device; used to type in commands and data. Mouse or trackball enhances user’s ability to input commands, manipulate text, images. Joystick useful in education as an adaptive or assistive input device.
OUTPUT DEVICE Monitors are the most commonly used output device. Monitors are connected to a computer system via a port integrated on the video adapter or graphics card.