Computer Software Student: Teacher: Learning Objectives

Computer Software

Student: ____________
Teacher: ____________

Learning Objectives

• Identify and discuss the role of the essential hardware components of a computer system.
• List and describe popular classes of computer systems and discuss the role of each.
• Outline the role of the operating system and discuss how operating systems have evolved over time.
• Identify and briefly describe the functions of the two basic kinds of software.

Computer System Components

Hardware Components in Action

• Instruction phase
• Step 1: Fetch instruction
• Step 2: Decode instruction
• Execution phase
• Step 3: Execute the instruction
• Step 4: Store the results

Types of Secondary Storage

Storage Area Network

Input Devices

• Personal computer input devices
• Keyboard
• Mouse
• Voice-recognition devices
• Microphone
• Software to convert voice into bits
• Digital computer cameras
• Record images and video
• Terminals
• Connects to a powerful server for computations
• Scanning devices
• Page
• Handheld
• Touch-sensitive Screens

Output Devices

• Display Monitors
• Cathode Ray Tube (CRT)
• Wide
• Lights up pixels
• Liquid Crystal Displays (LCDs)
• Flat panel
• Printers and Plotters
• Speed measured in pages (page printed per minute)
• Music Devices
• MP3 Players

An Example of the Operating System Controlling Physical Access to Data

Application Program Interface

Sources of Software

Use of Integrated Supply Chain Management Software