Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

cp102 chapter 5 notes for computer science, Study notes of Computer Science

Wilfrid Laurier UniversityComputer Science

chapter 5 notes for intro to microprocessing

Typology: Study notes

2019/2020

Uploaded on 10/04/2020

jord-awesome
jord-awesome 🇨🇦

5 documents

1 / 5

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Chapter 5-System Software: The operating system, utility programs, and file
management
Understanding System Software
Learning Outcome 5.1 You will be able to explain the types and functions of an operating
system and explain the steps in the boot process.
Operating System Fundamentals
Objective 5.1 Discuss the functions of the operating system.
System software is the set of software programs that helps run the computer and coordinates
instructions between application software and hardware devices. It consists of the operating
system (OS) and utility programs.
The OS controls how your computer system functions. It manages the computer’s hardware,
provides a means for application software to work with the CPU, and is responsible for the
management, scheduling, and coordination of tasks.
Utility programs are programs that perform general housekeeping tasks for the computer, such
as system maintenance and file compression.
Modern operating systems allow for multitasking—to perform more than one process at a
time.
Kinds of Operating Systems
Objective 5.2 Explain the different kinds of operating systems for machines, networks, and
business.
Real-time operating systems (RTOSs) require no user intervention.
A multiuser operating system (network operating system) provides access to a computer
system by more than one user at a time.
UNIX is a multiuser, multitasking OS that is used as a network OS, though it can be used on PCs.
Mainframes and supercomputers are specialty computers that require mainframe operating
systems.
Common Operating Systems
Objective 5.3 Explain the most common operating systems for personal use.
Smartphones have their own specific operating systems, which allow the user to multitask.
pf3
pf4
pf5

Partial preview of the text

Download cp102 chapter 5 notes for computer science and more Study notes Computer Science in PDF only on Docsity!

Chapter 5-System Software: The operating system, utility programs, and file

management

Understanding System Software Learning Outcome 5.1 You will be able to explain the types and functions of an operating system and explain the steps in the boot process. Operating System Fundamentals Objective 5.1 Discuss the functions of the operating system. System software is the set of software programs that helps run the computer and coordinates instructions between application software and hardware devices. It consists of the operating system (OS) and utility programs. The OS controls how your computer system functions. It manages the computer’s hardware, provides a means for application software to work with the CPU, and is responsible for the management, scheduling, and coordination of tasks. Utility programs are programs that perform general housekeeping tasks for the computer, such as system maintenance and file compression. Modern operating systems allow for multitasking—to perform more than one process at a time. Kinds of Operating Systems Objective 5.2 Explain the different kinds of operating systems for machines, networks, and business. Real-time operating systems (RTOSs) require no user intervention. A multiuser operating system (network operating system) provides access to a computer system by more than one user at a time. UNIX is a multiuser, multitasking OS that is used as a network OS, though it can be used on PCs. Mainframes and supercomputers are specialty computers that require mainframe operating systems. Common Operating Systems Objective 5.3 Explain the most common operating systems for personal use. Smartphones have their own specific operating systems, which allow the user to multitask.

 Some operating systems allow interaction with touch-screen interfaces. Gaming consoles use operating systems developed specifically for those particular devices. Microsoft Windows is the most popular OS. The most recent release is Windows 10. The Mac OS, which is designed to work on Apple computers, and Linux is an open source OS based on UNIX and designed primarily for use on personal computers. An OS is designed to run on specific CPUs. The combination of an OS and a CPU is a computer’s platform. Application software is OS dependent.  All personal operating systems incorporate elements to share and store on the Internet. What the Operating System Does Objective 5.4 Explain how the operating system provides a means for users to interact with the computer.   The OS provides a user interface that enables users to interact with the computer.   Most OSs today use a graphical user interface (GUI). Common features of GUIs include windows, menus, and icons. Operating System Aids Objective 5.5 Explain how the operating system helps manage hardware such as the processor, memory, storage, and peripheral devices.   When the OS allows you to perform more than one task at a time, it is multitasking. To provide for seamless multitasking, the OS controls the timing of the events on which the processor works.   As the OS coordinates the activities of the processor, it uses RAM as a temporary storage area for instructions and data the processor needs.   The OS coordinates the space allocations in RAM to ensure that there is enough space for the waiting instructions and data. If there isn’t sufficient space in RAM for all the data and instructions, then the OS allocates the least necessary files to temporary storage on the hard drive, called virtual memory.   The OS manages storage by providing a file management system that keeps track of the names and locations of files and programs.   Programs called device drivers facilitate communication between devices attached to the computer and the OS. Operating System Interacts with Application Software

Objective 5.9 Summarize how the operating system helps keep your computer organized.   Files and folders are organized in a hierarchical directory structure composed of drives, libraries, folders, subfolders, and files.   The C: drive represents the hard drive and is where most programs and files are stored.   File Explorer is the main tool for finding, viewing, and managing the contents of your computer. View and Manage Objective 5.10 Summarize how to view, sort, name, and manage files and folders.   File Explorer helps you manage your files and folders by showing the location and contents of every drive, folder, and file on your computer.   There are specific rules to follow when naming files.   The Recycle Bin is the temporary storage location for deleted files from the hard drive. File Compressions Objective 5.11 Summarize how file compression works.   File compression reduces the size of a file by temporarily storing components of a file and then when the file is extracted (uncompressed) the removed components are brought back into the file.   Utility Programs Enhance System Productivity Objective 5.12 Outline the tools used to enhance system productivity.   Task Manager is used to exit nonresponsive programs.   Disk Cleanup removes unnecessary files from your hard drive. If not deleted periodically, these unnecessary files can slow down your computer.

  Disk Defragmentation rearranges fragmented data so that related file pieces are unified. When a disk is fragmented, it can slow down your computer. Utilities to Backup and Restore Objective 5.13 Summarize the utilities used to backup and restore files and the computer system.   File History automatically creates a duplicate of your hard drive (or parts of your hard drive) and copies it to another storage device, such as an external hard drive. You can use File History to recover deleted or corrupted files.   System Restore lets you roll your system settings back to a specific date (restore point) when everything was working properly. Assistive Technology Utilities Objective 5.14 Describe the assistive technology utilities used to make using the computer system easier.  Windows Ease of Access Center includes tools that help adjust computer settings for those users with disabilities.