System and Application Software Overview

Backup data can be stored on a CD or DVD, a second hard drive, a flash memory drive, or uploaded to the Internet.

Backing up your entire computer allows for a complete restoration of your system to the same configuration if needed.

A firewall controls the flow of traffic into and out of a network by examining each packet of data.

<p>Access from a high security zone to a low security zone is generally allowed, while access from a low security zone to a high security zone is typically disallowed.</p> Signup and view all the answers

<p>Antivirus programs and antispyware programs are commonly included in operating systems.</p> Signup and view all the answers

<p>To control a computer system and enable basic operations like booting, launching applications, and managing hardware.</p> Signup and view all the answers

<p>It specifies the allowable use of the software and the conditions under which the user can utilize it.</p> Signup and view all the answers

<p>Open source software is typically cheaper and can be more stable due to community support and collaboration.</p> Signup and view all the answers

<p>Shareware is copyrighted software distributed on the honor system, where users are expected to pay or uninstall it after a trial period.</p> Signup and view all the answers

<p>Freeware is copyrighted software that is available for use free of charge, unlike shareware which requires payment after a trial.</p> Signup and view all the answers

<p>Public domain software is not copyrighted and has had its ownership rights donated to the public for unrestricted use.</p> Signup and view all the answers

<p>Utility programs help manage, maintain, and analyze computer resources and improve system performance.</p> Signup and view all the answers

<p>A significant reason is that it is often cheaper than proprietary alternatives and encourages community collaboration.</p> Signup and view all the answers

<p>Mobile software is specifically designed to function on smartphones and other mobile devices.</p> Signup and view all the answers

<p>Installed software must be downloaded and run from a local computer, while cloud software can be accessed via the Internet without local installation.</p> Signup and view all the answers

<p>A software suite usually includes word processing, spreadsheet, database, and presentation graphics software.</p> Signup and view all the answers

<p>Presentation graphics software is used to create visual content for presentations, enhancing the communication of ideas.</p> Signup and view all the answers

<p>A slide is a one-page graphic that can be part of a group, displayed sequentially in an electronic slide show.</p> Signup and view all the answers

<p>Audio capture software records sound, while editing software allows users to refine and add effects to audio files.</p> Signup and view all the answers

<p>Multitasking refers to the ability of a computer to run multiple tasks or processes simultaneously.</p> Signup and view all the answers

<p>Microsoft PowerPoint and Apple Keynote are common programs used to create and display presentation graphics.</p> Signup and view all the answers

<p>Cooperative multitasking relies on programs voluntarily yielding control of the CPU, while preemptive multitasking allows the operating system to forcibly take control from a program when necessary.</p> Signup and view all the answers

<p>The main advantage of multiprogramming is increased CPU utilization and reduced idle time by allowing multiple programs to share CPU resources.</p> Signup and view all the answers

<p>In symmetric multiprocessing (SMP), all CPUs share equal access to memory and resources, whereas in asymmetric multiprocessing (AMP), each CPU is assigned specific tasks and may not share memory equally.</p> Signup and view all the answers

<p>Batch processing involves collecting jobs, processing them without manual intervention, and outputting results in batches; its primary benefit is efficient handling of large data volumes.</p> Signup and view all the answers

<p>The purpose of file de-fragmentation is to reorganize fragmented data on a disk to improve performance and access speed.</p> Signup and view all the answers

<p>Lossy compression reduces file size by permanently removing some data, while lossless compression retains all original data but removes unnecessary metadata.</p> Signup and view all the answers

<p>Utility programs assist in various maintenance tasks, such as searching for files, diagnosing system issues, managing disks, and uninstalling software properly.</p> Signup and view all the answers

<p>Regularly backing up data is critical to prevent loss due to hardware failures, accidental deletions, or data corruption.</p> Signup and view all the answers