CIS Chapter 5: System software: Operating Systems and Utility Programs

Ex of operating system process

1.) make sure that the specified hard drive exists 2.) verify that there is adequate space on the harddrive 3.) update the files trajectory

Utility Program

A small program that performs many of the general housekeeping tasks for the computer, such as system maintenance and file compression. sold stand alone or will be built in

Multithreading

Allows different parts of a single program to run concurrently.

Buffering

As area in RAM or on the hard drive designate to hold data that is waiting to be used by the computer

UNIX

Can support a variety of devices from different users and Mac OS is from this and allows them to have much diversification on devices

Configuring devices

Configuring devices so they operate properly

Start Menu

Contains a many of shortcuts as well as tiles that can be use to launch appliations under the start button tab that opens in top right

DOS (Disk Operating System)

DOS traditionally used a command-line interface Dominatn in the 1980s and early 1990s pc dos - Created orginially for IBM microcomputers Can enter DOS commands in windows using the command prompt

LINUX

Designed to be open to the public software cost is cheap

Chrome OS

First cloud operating system Replaces traditional desktop operating system Designed for devices that are used entirely online Only available on chrome systems

Before Gui was all command line Timeline:

In 80s we saw Microsoft windows and this used GUI.

Functions of the operating system

Interfacing with users booting the PC File Management security login purposes during booting, kernel or core is added on the computer

Memory Management

Memory management optimizes the use of RAM; helps speed up processing

Virtual Memory

Memory management technique that uses hard drive space as additional RAM

windows Task Manager

Operating system manages all tasks and this is seen in the task manager window

Buffering

Place items in a buffer so they can be retrieved by the appropriate device when needed

Security Programs

Protect computers and users and it is essential that all computer users protect themselves and their computers. antivirus, antispy, and firewall programs

File Compression Programs

Reduce the size of files to optimize storage space and transmission time - both zip and unzip files built into recent versions of windows winzip Stuffit - the file compression formed is zip or zipx and shows that it has been compressed

Android

Started by google for smart phones; entertainment

Operating systems perform multitasking

This is when the operating system allows it to multitask and this

Uninstall and Cleanup utilites

Ununstall utilities remove programs from your hard drive without leaving bits and pieces behind - uninstall just don't delete them - built into operating systems generally we leave data when we close programs and this cleans it up for you When you do this you may have to be in administrative mode Cleanup utiliites delete temporary files

Search Tools

Utility programs that search for documents and other files on a user's hard drives.

Device Drivers

Utility software used by the operating system to communicate with peripheral devices. This tells the operating system how it communicates to a device

Sequential v. Simultaneous Processing Operating systems manage this

We generally do sequential processing Ex. one step at a time Simultaneous Processing Ex. Multitasks at the same time; normally on large super computers (parallel processing)

Application in operating system to hard ware from operating system hardware

Why so many different operating systems? - Different operating systems

Firefox OS

a Linux-based open source operating system that runs on smartphones and tablets developed by Mozilla

Drones

being regulated by FFA is it illegal to video homes?

Operating system

boots computer configures devices manages network connection managing and monitoring resources and jobs file management security

Oeprating systems for larger computers

different ones and many use ZOS

File Management Programs

enable the user to perform file management tasks

diagnostic and Disk Management programs

evaluate your system and look for problems

File Explorer

file management in recent versions of Windows

GUI

icons, buttons, and other objects that the user selects to issue commands came to by by zerox

Application software

includes all the programs that allow you to perform specific tasks on your computer

Personal Desktop operating systems server (network) operating systems Mobile operating systems Embedded Operating System

installed on a single computer are designed to be on a server

operating system

main component of system software allows to control hardware and the interface; turn on phone, loads up the operating system a system composed of many utility programs (file management, security, etc) boots up launches apps makes sure things are done in an orderly fashion

Backup

making a duplicate copy of important files so they can be restored if needed - backup on cds, flashdrives, and dvd

IOS

mobile operating system for the iPhone

Windows 10 Mobile

movement away from traditional PC; continuing to make the mobile operating system look like the desktop

Processing techniques for increased efficiency

multitasking - more than one program open at a time and working on it multithreading - allows different threads to run at once multiprocessing parallel processing last two have multiple CPUS and work simulataneously in each CPU First two are using single core and are sequential

Windows 10 Desktop

newest Microsoft operating system

windows 10

newest software and will run on any device and is a universal operating system

Blackberry OS and Mobile Linux

operating system designed for blackberry

Command Line interface

requires the user to input text-based commands using the keyboard the old command line used on old computers 46/-*46//5-;lfd = J

spooling

sends documents to be printed to a buffer instead of sending them immediately to the printer

system software and application software

these are separated because the main role of the system software is to act as the liaison between the application (specific task software) and the hardware components of the compute

System Software

translate commands into a form computer can understand to open and close other software programs to manage your stored files locate and set up new hardware as it is added to the computer consists of the operating system and utility programs that control your computer and allow you to use it - allow booting up, launch apps, managing files, and security Main control center of things and allows for the use of hardware

OSx

used on apple

Operating system in use

user - instructs the operating system to start the application operating system - start program user - open document and print it application program - hands the document over to the operating system for printing operating system - sends the document to the printer printer - prints the document

The future of operating systems

user friendly driven by touch, voice, or gesture interface

Windows firewall program

windows built this in and a firewall looks at all files sent into our network; if sees anything that shouldn't come in or out, it blocks it.

Management software with clouds

you can download the apps and when you download on a windows device it builds in and makes it look like a traditional file