Chapter 4 System Software
What does system software include?
-Includes Operating system, utilities, device drivers, language translators
What are some functions of an operating system?
-Managed computer resources, coordinate memory, processing, storage, printers and monitors, monitors system performance, scheduled tasks, provide security, starts up the computer -provides the user interface -Runs applications
Operating system
A collection of programs that handle technical tasks
Describe the differences between system software and application software
Application software is The end-user software and accomplishes a variety of tasks, has three categories that include general, specialize, and mobile apps. System software focuses on operating systems, device drivers, language translators, and utilities in a computer
Stand alone operating systems
Call so-called desktop operating system
Utility suites
Combine several programs into one package and are less expensive Some popular ones are a bit defender, Norton Utilities, Kaspersky
Self-healing computers?
Could mean an end to computer crashes and performance problems, fix software problems, reroute functions around broken hardware
Virtualization software
Each virtual machine appears a separate independent computer, post operating system and guest operating system
What are three categories of operating systems?
Embedded operating systems, standalone operating systems, network operating systems
Disk defragmenter
Files are organized in tracks and sectors; tracks - concentric ring, sector - wedge-shaped sections of a track -optimize drives identify and eliminate unnecessary fragments by making files into fragments and rearranging them to an unused a disk space in order to optimize operations
Linux
Free OS can be used on a MAC or a PC, alternative to windows, Google Chrome based on this -focuses on Internet connectivity and cloud computing, speed is determined by speed of the Internet
IBM automatic computing initiative?
Handles time consuming maintain ends, self-regulating and virtually invisible
What does an operating system and application software have in common?
Icons, pointers, windows, menus, tabs, dialog boxes, help, gesture control
Disk cleanup
Identify his and aluminates non-essential files, freeze up valuable space and improve system performance
Mac OS
MAC OS X runs on apple computers -two most recent versions: OS X MAVERICKS (improved power management), OS X YOSEMITE (New user interface)
Self maintaining servers?
Self repairing, self updating, self protecting
UNIX
Servers on the web, mainframe computers, personal computers
Embedded operating systems (RTOS)
Smart phones, smart watches, video game systems
Utilities
Specialized programs to make computing easier
What is virtualization?
The ability to support multiple operating systems on a single physical machine
What are mobile operating system's?
They have an embedded operating system that is less complicated and more specialized for wireless (Android, IOS, Windows phone)
File history
Utility program included with windows eight that makes a copy of all files in the libraries, contacts, favorites and the desktop to help prevent the effect of disc failure
Network operating systems (Linked computers)
Windows server, Linux, UNIX, operating system stored on network server which coordinates all communication between the other computers
System software
Works with end users, application software, to computer hardware -Includes Operating system, utilities, device drivers, language translators
