- System software refers to the files and programs that make up your computer's operating system. System files include libraries of functions, system services, drivers for printers and other hardware, system preferences, and other configuration files. The programs that are part of the system software include assemblers, compilers, file management tools, system utilities, and debuggers. The system software is installed on your computer when you install your operating system. You can update the software by running programs such as "Windows Update" for Windows or "Software Update" for Mac OS X.
2 Types Of System Software- Operating System
- Utility Program
- Windows Server is a brand name for a group of server operating systems released by Microsoft Corporation.
- Unix is amultitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie,Brian Kernighan, Douglas McIlroy, and Joe Ossanna. The Unix operating system was first developed in assembly language, but by 1973 had been almost entirely recoded inC, greatly facilitating its further development and porting to other hardware. - Linux Linux can be installed on a wide variety of computer hardware, ranging from mobile phones, tablet computers, routers and video game consoles, todesktop computers, mainframes and supercomputers. Linux is a leading serveroperating system, and runs the 10 fastest supercomputers in the world. The development of Linux is one of the most prominent examples of free and open source software collaboration; typically all the underlying source code can be used, freely modified, and redistributed, both commercially and non-commercially, by anyone under licenses such as the GNU General Public License.
- Solaris Solaris is known for its scalability, especially on SPARC systems, and for originating many innovative features such as DTrace, ZFS and Time Slider. Solaris supports SPARC-based and x86-based workstations and servers from Sun and other vendors, with efforts underway to port to additional platforms.
- NetWare It initially usedcooperative multitasking to run various services on a personal computer, with network protocols based on the archetypal Xerox Network Systems stack.
3. Summarize the features of several embedded operating systems: Windows Embedded CE, Windows Mobile, Palm OS, iPhone OS, BlackBerry, Google Android, Embedded Linux, and Symbian OS.
- Microsoft Windows CE is an operating system developed by Microsoft for embedded systems. Windows CE is a distinct operating system and kernel, rather than a trimmed-down version of desktop Windows. Windows CE is optimized for devices that have minimal storage—a Windows CE kernel may run in under a megabyte of memory.
- Features Windows Mobile
- Today screen shows the current date, owner information, upcoming appointments, e-mail messages, and tasks. (Home screen in later WM6.5 builds)
- The taskbar shows the current time and the audio volume.
- Office Mobile, a suite of Mobile versions of Microsoft Office applications, including Outlook Mobile.
- Internet Explorer Mobile, an Internet browser developed by Microsoft for Pocket PC and Handheld PC that comes loaded by default with Windows Mobile and Windows CE for Handheld PC.
- Windows Media Player for Windows Mobile.
- Client for PPTP VPNs.
- Internet Connection Sharing (ICS), which in mobile phones allows the phone to make its Internet connection available to computers via USB and Bluetooth.
- File system similar to that of Windows 9x/Windows NT, with support for many of the same file types.
- Ability to multitask.
Features:
- Simple, single-tasking environment to allow launching of full screen applications with a basic, common GUI set
- Monochrome or color screens with resolutions up to 480x320 pixel
- Handwriting recognition input system called Graffiti 2
- HotSync technology for data synchronization with desktop computers
- Sound playback and record capabilities
- Simple security model: Device can be locked by password, arbitrary application records can be made private
- TCP/IP network access
- Serial port/USB, infrared, Bluetooth and Wi-Fi connections
- Expansion memory card support
- Defined standard data format for personal information management applications to store calendar, address, task and note entries, accessible by third-party applications.
- iPhone OS Features:
- Multitasking
- Fast App Switching
- Local Notification
- App Folders
- New App E-mail
- iBooks
- Multi-touch Interface
- Webkit Browser
- Home Screen
- Universal Search
- Context Sensitive Menus
- Social Tools
- Handset layouts
- Storage
- Connectivity
- Messaging
- Multiple language support
- Web browser
- Java support
- Media support
- Streaming media support
- Additional hardware support
- Multi-touch
- Bluetooth
- Video calling
- Multitasking
- Tethering
- Screen Capture
- File Manager - is a computer program that provides a user interface to work with file systems. The most common operations performed on files or groups of files are: create, open, edit, view, print, play, rename, move, copy, delete, search/find, and modify attributes, properties and permissions.
- Image Viewer - is a computer program that can display stored graphical image
- Uninstaller - also called a deinstaller, is a utility software designed to remove other software or parts of it from a computer.
- Disk cleanup - is a computer maintenance utility included in Microsoft Windows designed to free up disk space on a computer's hard drive. The utility first searches and analyzes the hard drive for files that are no longer of any use, and then removes the unnecessary files.
- Disk defragmenter - is a process that reduces the amount of fragmentation in file systems.
- Backup Utility - allows users to copy files to another storage medium.
- Restore Utility - reverses the process and returns backed up files to their original form
- Screen Saver - causes a display device’s screen to show a moving image or blank screen if no activity occurs for a specified time
- Personal Firewall - detects and protects a personal computer from unauthorized intrusions
- Anti Virus Program - protects a computer against viruses
- Spyware removers - detects and deletes spyware and other similar programs
- Adware remover- is a program that detects and deletes adware
- Internet Filters - are programs that remove or block certain items from being displayed
- File Compression - shrinks the size of a file(s), compressing files frees up room on the storage media.
- Media Player - allows you to view images and animation, listen to audio, and watch video files on your computer
- Disc Burning - writes text, graphics, audio, and video files on a recordable or rewritable optical disc.
- Personal Computer Maintenance - identifies and fixes operating system problems, detects and repairs disk problems, and includes the capability of improving a computer’s performance
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