Introduction to Information Technology WEEK 8

Introduction to Information Technology WEEK 8

Summary of Week 8

LECTURE 15

Firework is graphic software. You can create graphics using some of the best features of both vector and bitmap graphic applications in a single application. You can edit with vector-object flexibility and apply bitmap effects—including bevels, glows, drop shadows, and now PhotoShop filters—that redraw as you edit.

You can optimize Web graphics in Fireworks to minimize file size, resulting in fast loading Web sites. In Fireworks you can add interactivity to your Web graphics to create image maps, JavaScript rollover buttons, animated banner ads, and even entire Web pages. You can save lots of time throughout the Web design process with batch processing, save able styles and export settings, optimization in the workspace, command-sequence scripting, and compatibility with Macromedia Dreamweaver and other Web design software.

Fireworks is primarily a design application for screen graphics. However, with the ability to export to applications such as FreeHand and Illustrator, you can reuse graphics designed in Fireworks for print purposes. In this lecture we will explore some important futures of Firework

LECTURE 16

An Operating System is an interface between hardware and user which is responsible for the management and coordination of activities and the sharing of the resources of the computer that acts as a host for computing applications run on the machine. As a host, one of the purposes of an operating system is to handle the details of the operation of the hardware. This relieves application programs from having to manage these details and makes it easier to write applications. Almost all computers (including handheld computers, desktop computers, supercomputers, video game consoles) as well as some robots, domestic appliances (dishwashers, washing machines), and portable media players use an operating system of some type.[1] Some of the oldest models may, however, use an embedded operating system that may be contained on a compact disk data storage device.

Operating systems offer a number of services to application programs and users. Applications access these services through application programming interfaces (APIs) or system calls. By invoking these interfaces, the application can request a service from the operating system, pass parameters, and receive the results of the operation. Users may also interact with the operating system with some kind of software user interface (SUI) like typing commands by using command line interface (CLI) or using a graphical user interface (GUI, commonly pronounced “gooey”). For hand-held and desktop computers, the user interface is generally considered part of the operating system. On large multi-user systems like Unix and Unix-like systems, the user interface is generally implemented as an application program that runs outside the operating system. (Whether the user interface should be included as part of the operating system is a point of contention.)

Common contemporary operating systems include BSD, Darwin (Mac OS X), Linux, SunOS (Solaris/OpenSolaris), and Windows NT (XP/Vista/7). While servers generally run Unix or some Unix-like operating system, embedded system markets are split amongst several operating systems.[2][3], although the Microsoft Windows line of operating systems has almost 90% of the client PC market. In this lecture we will be discussing following topics:
Types of system software
Startup procession of a personal computer
Functions of an operating system
OS facilities to administrator a network and security
Purpose of OS utilities
Features of stand-alone operating systems
Features of network operating systems
Devices use several embedded operating systems
Purpose of stand-alone utility programs

Lecture Slides: Operating Systems and Utility Programs