Bachelor of Information Technology Information Systems and Technology
Bachelor of Information Technology Information Systems and Technology - IT 1105 02. Hardware and Software of Computer based Information Systems (CBIS) – Part X 2. 3 Basic Role of System Software in CBIS 2. 4 Software issues and trends Prabhajinie Jayabaalasundaram MBCS, MBA
Bachelor of Information Technology Information Systems & Technology IT 1105 02. Hardware and Software of Computer based Information Systems (CBIS) – Part X 2. 3 Basic Role of System Software in CBIS 2. 4 Software issues and trends Prabhajinie Jayabaalasundaram MBCS, MBA
IT 1105 Information Systems and Technology Intended Learning Outcomes After completing this session you should be able to; Identify the basic role of system software Identify key issues and trends of software that have an impact on organisations and individuals
IT 1105 Information Systems and Technology Last Lesson Systems Software Operating Systems
IT 1105 Information Systems and Technology Outline Systems Software Utility Programs Middleware Software issues and trends
IT 1105 Information Systems and Technology Systems Software Types of systems software include • operating systems • utility programs • middleware.
IT 1105 Information Systems and Technology Utility Programs Utility programs help to perform maintenance or correct problems with a computer system. Some utility programs can help computer systems run better and longer without problems. Another type of utility program allows people and organizations to take advantage of unused computer power over a network. Utility programs can also help to secure and safeguard data.
IT 1105 Information Systems and Technology Hardware Utilities Some hardware utilities are available from companies such as Symantec, which produces Norton Utilities. Hardware utilities can check the status of all parts of the PC. Disk utilities check the hard disk's boot sector. Disk utilities can also optimize the placement of files on a crowded disk.
IT 1105 Information Systems and Technology Security Utilities Antivirus and antispyware software can be installed to constantly monitor and protect the computer. This software runs continuously in the background to keep new viruses and spyware from entering the system. To keep current and make sure that the software checks for the latest threats, it can be easily updated over the Internet. Firewall software filters incoming and outgoing packets, making sure that neither hackers nor their tools are attacking the system. Some software assists in keeping private data from being accessed from a computer system and works to protect you from scams and fraud.
IT 1105 Information Systems and Technology File-Compression Utilities File-compression programs can reduce the amount of disk space required to store a file or reduce the time it takes to transfer a file over the Internet. A Zip file has a. zip extension, and its contents can be easily unzipped to their original size. Mp 3 (Motion Pictures Experts Group layer 3) is a popular file compression format used to store, transfer, and play music and audio files that can be downloaded from the Internet.
IT 1105 Information Systems and Technology Spam-Filtering Utilities E-mail software and services include spam filtering utilities to assist users with receiving unwanted e-mail (spam) annoyances. E-mail filters identify spam by learning what the user considers spam and routing it to a junk mail folder. Businesses often use additional spam-filtering software from companies, including Cisco, Barracuda Networks, and Google, at the enterprise level to intercept dangerous spam as it enters the corporate e-mail system.
IT 1105 Information Systems and Technology Network and Internet Utilities A broad range of network - and systems-management utility software is available to monitor hardware and network performance. They trigger an alert when a server is crashing or a network problem occurs. Advanced Web site monitoring utilities provide a detailed analysis of Web server functionality and traffic. The software alerts administrators before problems build to dangerous levels. Because businesses depend on their internal networks and Web presence, downtime can seriously affect a business' bottom line.
IT 1105 Information Systems and Technology Server and Mainframe Utilities IBM has created systems-management software that allows a support person to monitor the growing number of desktop computers in a business attached to a server or mainframe computer. The direct benefit is to the system manager, but the business also gains from having a smoothly functioning information system. Utility programs can meet the needs of a single user, workgroup or enterprise.
IT 1105 Information Systems and Technology Other Utilities Utility programs are available for almost every conceivable task or function • PCmover and Apple's Migration Assistant • Microsoft Windows Rights Management Services • Widgit Software’s software utility • Key logging software • Monitoring software • Parental control software • Keyboard shortcut utilities • FTP (file transfer protocol) utility
IT 1105 Information Systems and Technology Other Utilities Some popular categories of utilities Antivirus software File management Automation software Firewall software Photo sharing and publishing FTP software Internet security software suites i. Tunes utilities Backup software Bookmark managers CD & DVD burners Clipboard software Keyboard shortcut utilities Corporate security software Maintenance and optimization Encryption software Data transfer and syncing Video converting
IT 1105 Information Systems and Technology Middleware is software that allows various systems to communicate and exchange data. Middleware is often developed to address situations in which a company acquires different types of information systems through mergers, acquisitions, or expansion and wants the systems to share data and interact. Middleware can also serve as an interface between the Internet and private corporate systems.
IT 1105 Information Systems and Technology Middleware The use of middleware to connect disparate systems has evolved into an approach for developing software and systems called SOA. A service-oriented architecture (SOA) uses modular application services to allow users to interact with systems and systems to interact with each other. SOA modules can be reused for a variety of purposes which reduces development time. Because SOA modules are designed using programming standards so they can interact with other modules, rigid custom-designed middleware software is not needed to connect systems.
IT 1105 Information Systems and Technology Question Identify the correct statement/s about Utility programs A) help to perform maintenance or correct problems with a computer system. B) can help computer systems run better and longer without problems. C) allows people and organizations to take advantage of unused computer power over a network. D) Utility programs can also help to secure and safeguard data. E) are application software
IT 1105 Information Systems and Technology Answer Identify the correct statement/s about Utility programs A) help to perform maintenance or correct problems with a computer system. B) can help computer systems run better and longer without problems. C) allows people and organizations to take advantage of unused computer power over a network. D) Utility programs can also help to secure and safeguard data. E) are application software
IT 1105 Information Systems and Technology Question Middleware is A) software that allows various systems to communicate and exchange data. B) often developed to address situations with different types of information systems and wants the systems to share data and interact. C) Middleware can’t serve as an interface between the Internet and private corporate systems. Identify the correct statement/s a) A only b) B only c) C only d) A and B only e) B and C only
IT 1105 Information Systems and Technology Answer Middleware is A) software that allows various systems to communicate and exchange data. B) often developed to address situations with different types of information systems and wants the systems to share data and interact. C) Middleware can’t serve as an interface between the Internet and private corporate systems. Identify the correct statement/s a) A only b) B only c) C only d) A and B only e) B and C only
IT 1105 Information Systems and Technology Question Which of the followings is an/are example(s) of utility software? (a) Mc. Afee (b) Winzip (c) Auto. CAD (d) Microsoft Office (e) Microsoft Access
IT 1105 Information Systems and Technology Question Which of the followings is an/are example(s) of utility software? (a) Mc. Afee (b) Winzip (c) Auto. CAD (d) Microsoft Office (e) Microsoft Access
IT 1105 Information Systems and Technology Software issues and Trends Because software is such an important part of today's computer systems, issues such as • software bugs • licensing • upgrades and • global software support have received increased attention
IT 1105 Information Systems and Technology Software Bugs A software bug is a defect in a computer program that keeps it from performing as it is designed to perform. Some software bugs are obvious and cause the program to terminate unexpectedly. Other bugs are subtler and allow errors to creep into your work.
IT 1105 Information Systems and Technology Software Bugs Tips for reducing the impact of software bugs. • Register all software • Check the manual or read-me files for solutions. • Access the support area of the manufacturer's Web site. • Install the latest software updates. • Before reporting a bug, make sure that you can re-create the circumstances under which it occurs • After re-create the bug, call the manufacturer's tech support line. • Consider waiting before buying the latest release of software
IT 1105 Information Systems and Technology Copyrights and Licenses Most software products are protected by law using copyright or licensing provisions. In some cases, you are given unlimited use of software on one or two computers. In other cases, you pay for your usage. This approach is becoming popular with software placed on networks or larger computers. Some software now requires that you register or activate it before it can be fully used. This is another way software companies prevent illegal distribution of their products.
IT 1105 Information Systems and Technology Copyrights and Licenses When people purchase software, they don't actually own the software, but rather are licensed to use the software on a computer. This is called a single-user license. A single-user license permits you to install the software on one computer, or sometimes two computers used by one person. A single-user license does not allow you to copy and share the software with others. Licenses that accommodate multiple users are usually provided at a discounted price
IT 1105 Information Systems and Technology Software issues and Trends License Description Single-user license Permits you to install the software on one computer, or sometimes two computers, used by one person Specifies the number of users allowed to use the software, and the number that can be installed on each user’s computer. Multi User license
IT 1105 Information Systems and Technology Software issues and Trends License Description Concurrentuser license Designed for network-distributed software, this license allows any number of users to use the software, but only a specific number of users to use it at the same time. Permits the software to be used anywhere on a particular site, such as a college campus, by everyone on the site. Site license
IT 1105 Information Systems and Technology Freeware and Open-Source Software Freeware is software that is made available to the public for free. Software developers might give away their product for several reasons. • Some want to build customer interest and name recognition. • Others simply don't need the money and want to make a valuable donation to society. Creative works that reach the end of their term of copyright revert to the public domain.
IT 1105 Information Systems and Technology Freeware and Open-Source Software Thunderbird Pidgin Adobe Reader AVG Antivirus Win. Patrol Irfan View Description E-mail and newsgroup software Instant messaging software Software for viewing Adobe PDF documents Antivirus security software Antispyware software Photo-editing software
IT 1105 Information Systems and Technology Freeware and Open-Source Software Freeware differs slightly from free software. Freeware simply implies that the software is distributed for free. The term free software implies that the software is not only freeware, but it is also open source. Open-source software is distributed typically for free, with the source code. Open-source software evolves from the combined contribution of its users.
IT 1105 Information Systems and Technology Freeware and Open-Source Software Linux Open Office My. SQL Mozilla Firefox Gimp Open. Proj Grisbi Thunderbird Category Operating system Application software Database software Internet browser Photo editing Project management Personal accounting E-mail
IT 1105 Information Systems and Technology Freeware and Open-Source Software Open-source software is not completely devoid of restrictions. The GPL grants you the right to do the following: • Run the program for any purpose • Study how the program works and adapt it to your needs • Redistribute copies so you can help others • Improve the program and release improvements to the public
IT 1105 Information Systems and Technology Freeware and Open-Source Software under the GPL is typically protected by a "copyleft" (a play on the word copyright), which requires that any copies of the work retain the same license. A copylefted work cannot be owned by any one person, and no one is allowed to profit from its distribution. The Free Software Directory (htp: //directory. fsf. org) lists more than 5, 000 software titles in 22 categories licensed under the GPL.
IT 1105 Information Systems and Technology Freeware and Open-Source Software Why would an organization run its business using software that's free? Many believe that open-source software is often more reliable and secure than commercial software. 1) by making a program's source code readily available, users can fix any problems they discover. A fix is often available within hours of the problem's discovery. 2) with the source code for a program accessible to thousands of people, the chances of a bug being discovered and fixed before it does any damage are much greater than with traditional software packages.
IT 1105 Information Systems and Technology Freeware and Open-Source Software However, using open-source software does have some disadvantages. • The up-front costs are only a small piece of the total cost of ownership that accrues over the years that the system is in place. • Open-source systems contain many hidden costs, particularly for user support or solving problems with the software. • Licensed software comes with guarantees and support services that open-source software does not
IT 1105 Information Systems and Technology Software Upgrades Software companies revise their programs and sell new versions periodically. Such upgrades typically cost less than a new installation of a product. Software upgrades vary widely in the benefits that they provide, and what some people call a benefit others might call a drawback.
IT 1105 Information Systems and Technology Global Software Supporting local operations is one of the biggest challenges IS teams face when putting together standardized, company-wide systems. Slower technology growth markets might not have any official vendor presence. Instead, large vendors typically contract with local providers to support for their software
IT 1105 Information Systems and Technology Global Software Support One approach - to outsource global support to one or more thirdparty distributors. The user company can still negotiate its license with the software vendor directly, but it then hands the global support contract to a third-party supplier. In today's computer systems, software is an increasingly critical component. Whatever approach people and organizations take to acquire software, everyone must be aware of the current trends in the industry. .
IT 1105 Information Systems and Technology Question The following statements are about software issues and trends. (i) Copyright violations refer to copying software illegally. (ii) All commercially available software is always released without any software bugs. (iii) Open Source software products may provide only limited user support. Identify the CORRECT statement/s. (a) Only i (b) Only ii (c) Only i and iii (d) Only iii (e) Only ii & iii
IT 1105 Information Systems and Technology Answer The following statements are about software issues and trends. (i) Copyright violations refer to copying software illegally. (ii) All commercially available software is always released without any software bugs. (iii) Open Source software products may provide only limited user support. Identify the CORRECT statement/s. (a) Only i (b) Only ii (c) Only i and iii (d) Only iii (e) Only ii & iii
IT 1105 Information Systems and Technology Question Mr. Nalaka bought one copy of MS Office and installed it on twelve of his friends’ computers for half of the price he purchased it. Nalaka can be considered as a (a) software hacker. (b) software reseller. (c) software pirate. (d) identity thief. (e) Internet pirate.
IT 1105 Information Systems and Technology Answer Mr. Nalaka bought one copy of MS Office and installed it on twelve of his friends’ computers for half of the price he purchased it. Nalaka can be considered as a (a) software hacker. (b) software reseller. (c) software pirate. (d) identity thief. (e) Internet pirate.
IT 1105 Information Systems and Technology Question Which of the following could be an issue for a global software developer? (a) Providing software support globally (b) Complaints related to software bugs (c) Threats from open source software (d) Privacy violations (e) Copyright violations
IT 1105 Information Systems and Technology Answer Which of the following could be an issue for a global software developer? (a) Providing software support globally (b) Complaints related to software bugs (c) Threats from open source software (d) Privacy violations (e) Copyright violations
IT 1105 Information Systems and Technology Summary Systems Software Utility Programs Middleware Software issues and trends
Bachelor of Information Technology Information Systems & Technology IT 1105 02. Hardware and Software of Computer based Information Systems (CBIS) – Part X 2. 3 Basic Role of System Software in CBIS 2. 4 Software issues and trends Prabhajinie Jayabaalasundaram MBCS, MBA
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