Question

Chapter 12 Information Systems, Read this book Computer Science Illuminated, Sixth Edition by Dale and Lewis p. 395-406 & 417-418 and answer the questions. Do not use direct quotes from the text, but make it clear that you have read the text to answer the questions.

1. What is an information system?

2. In figure 12.2, what would displayed in spreadsheet cell C11 if it contained the formula: =D10+C10 ?

397 12.2 Spreadsheets 5 FIGURE 12.1 A spreadsheet, made up of a grid of labeled cells its own particular nuances regarding its abilities and syntax, but al has its own particul spreadsheets embrace chapter focuses on these common co explore are Excel spreadsheet program. heets embrace a common set of concepts. Our discussion in this ncepts. The specific examples that we consistent with the syntax and functionality of the Microsoft preadsheet is a software application that allows the user to organ- A S ize and analyze data using a grid of labeled cells. A cell can contain data or a formula that is used to calculate a value. Data stored in a cell can be text, numbers, or "special" data such as dates. Spreadsheet A program that allows the user to organize and analyze data using a grid of cells As shown in FIGURE 12.4, spreadsheet cells are referenced by their row and column designation, usually using letters to specify the column and numbers to specify the row. Thus we refer to cells such as Al, C7, and G45. After the 26th column, spreadsheets begin to use two letters for the column designation, so some cells have designations such as AA19. There is usually some reasonably large maximum number of rows in a spread- sheet, such as 256. Furthermore, in most spreadsheet programs, multiple sheets can be combined into one large interacting system. Cell An element of a spreadsheet that can contain data or a formula Spreadsheets are useful in many situations, and they are often designed to manage thousands of data values and calculations. Let's look at a small example that demonstrates fundamental spreadsheet principles. suppose we have collected data on the number of students who came to get help from a set of tutors over a period of several weeks. We've kept how many students went to each of three tutors (Hal, Amy, and each week for a period of five weeks. Now we want to perform Sic analysis on that data. We might end up with the spreadsheet Su track of how man Frank) each week some basic shown in FIGURE 122 lyzed. Cell C4, for instan et contains, among other things, the raw data to be ana- dsheet contains, among other things, the raw data to be ana- tutored , for instance, contains the number of students whom Hal tutored in week week 1. The column of data running from C4 to C8 contains the

3. Is the internet helping or hurting the democratic process? Why?

Answer 1

Answer:

1)What is an information system?

Answer:

=> Information system, an integrated set of components for collecting, storing, and processing data and for providing information, knowledge, and digital products.

=> It is the study of complementary networks that people and organizations use to collect, filter, process, create and distribute data.

=> An information system (IS) is a group of components that interact to produce information.

=> Business firms and other organizations rely on information systems to carry out and manage their operations, interact with their customers and suppliers, and compete in the marketplace.

=>  Information systems are used to run interorganizational supply chains and electronic markets.

=> Information isn’t worth much if it doesn’t serve a purpose.

=> An information system can also be considered a semi-formal language which supports human decision making and action.

=>  information systems inter-relate with data systems on the one hand and activity systems on the other.

=>  An information system is a form of communication system in which data represent and are processed as a form of social memory.

=> The first large-scale mechanical information system was Herman Hollerith’s census tabulator.

=> As information systems enabled more diverse human activities, they exerted a profound influence over society.

=> Information and knowledge became vital economic resources. Yet, along with new opportunities, the dependence on information systems brought new threats.

2) Spreadsheet:

figure 12.2 spreadsheet containing student data in this sheet we can find total week of students toatls and averages.

=> As per figure in C10 and D10 cells have average of Hal and Amy data

=> add both C10 and D10 cells data using formula like "SUM=D9+C10".

=> Using above formula we get Hal and Amy 5 days Average data .

=> apply above formula in C11 cell we get hole days sum of Average data of both Hal and Amy

example:

SUM=D10+C10(16.60+11.80)

In C11 cell =28.4

3.Is the internet helping or hurting the democratic process? Why?

Does the internet impact democracy? Does is help foster democracyor does it absolutely have no impact? This debate has been heating up in the last few years with the dramatic impact of Web 2.0 and social media.

>> The first is that the use of the internet and communication networks is directly impacting the democratic process by influencing participation in political processes such as voting.

>> The second is the use of the internet and communication networks is allowing for a better informed voting population.

>> The third is the use of the internet and communication networks is surpassing traditional print and broadcast media outlets as the primary information source during the election process directly impacting the decisions of voters.

>> The internet provides a fast and easy for access to information from around the world, and hence, is key in promoting the democratic principles.

>> Technology alone cannot get people to the streets to start a revolution. But with the right social, political and cultural structure in place, it can definitely assist and play a crucial role in bringing democracy.

The reasons why the Internet is supposed to strengthen democracy include the following.

--->>The Internet lowers the entry barriers to political participation.

-->>.It strengthens political dialogue.

-->>It creates community.

-->>It cannot be controlled by government.

-->>It increases voting participation.