Minggu, 13 Oktober 2013

review chapter 2

answer of review chapter 2 

True/False
1. False
2. False
3. True
4. False
5. True
6. False
7. True
8. True
9. False
10. False
11. True
12. True

Multiple Choice
1. c
2. b
3. c
4. a
5. a
6. a
7. c
8. c

Checkpoint
1. h
2. b
3. f
4. e
5. a
6. i
7.d
8. g
9. j
10. C
Short Answers
1. - Cable internet service provides high-speed Internet access through the cable television network via a cable modem
    - DSL provides high-speed internet connections using regular copper telephone lines
    - Wi-Fi uses radio signals to provide high-speed internet connections to compatible or properly equipped wireless computers and devices.

Regional ISP provides internet access to a specific geographic area while national ISP provides internet in cities and towns nationwide.

2. Static webpage allows all visitors to see the same content. Dynamic webpage allows users to customize some or all content.
Website is a collection of related Web pages and associated items, such as documents and pictures, stored on a Web server.

3. Web application is a web site that allows users to access and interact with software through a web browser on any computer and device that is connected to the internet.
The features and examples of web applications are : Google Docs ( word processing, spreadsheets, presentations), Turbo Tax Online ( tax preparation), Windows Live Hotmail (e-mail)

4. The three types of specifications used by content aggregators to distribute content are RSS 2.0, Atom, Web Slices
Accuracy of a website can be evaluated by using evaluation criteria : affiliation, audience, authority, content, currency, design, objectivity.

5. Web publishing is the development and maintenance of Web pages.
The 5 major steps in Web publishing are plan a website, analyze and design a website, create a website, deploy a website, maintain a website.

Selasa, 01 Oktober 2013

PTI assignment review chapter 1

1.     why is computer literacy vital in today's world?
    Computer literacy is important and essential in today's world as much of the world relies on computers for doing the day to day activities. Computer literacy is the knowledge and the ability to use the computers and technology efficiently. The goal of every computer literate person is to be able to use and learn the computer programs without much help.

2.     what is computer and what is the relationship between data and information
    The relationship that lies between data and information is a solid one. Data is termed as raw facts such as phone numbers or addresses, while on the other hand information is the actual organization of these raw facts in a meaningful manner. This information may be in the form of a well organized report or table and but not always be meaningful to everyone.

3.     list and describe the five components of a computer
1.       datapath= manipulates the data coming through the processor. it also provides a small amount of  temporary data storage
2.       control= generate control signals that direct the operation of memory and the datapath
3.       memory=hold instruction and most of the data for currently executing programs
4.        input=external devices such as keyboard 
5.       ouput=external devices such as displays,printers ect

4.     what are the advantages and disadvantages that users experience when working with computer?
    adventages:-conveniecnce
                         -teach important new skill

    disadventage:-Too convenient. It helps to reduce more basic skills like spelling and mental      
                             -is bad for eyesight and contributes to obesity.
                        

5.     what is network and what are its benefits?

1. Shared Knowledge
Networking is great for sharing ideas and knowledge. Whether it’s asking for feedback or discussing your point of view, it will help you expand your knowledge and allow you to see things from another perspective.It is also likely that within a group there will be those who have already been where you are today. This provides you with an opportunity to learn and avoid some of the common pitfalls they experienced.
2. Opportunities
It’s natural that networking will result in opportunities. The thing you will not know is when or how they will materialise. Whether it’s a referral, offer partnership or request for your service or product, it is important to be ready to seize opportunities when they come along.
3. Connections
Remember you are not just gaining exposure to the people in the room, you are building connections with their network too. If someone they know has a need that matches your business, if you have made an impression, you will likely get a referral .And remember it’s not just a one-way street. If someone in your network matches a business you encounter at an event, don’t hesitate to share their details. It will only strengthen your relationship.
4. Increased confidence
By regularly networking, and pushing yourself to talk to people you don’t know, it will help increase your confidence. This is an important attribute as a business owner, because your business growth is dependent on talking to people and making connections.
5. Raising your profile
Being visible and getting noticed is a big benefit of networking. By regularly attending business and social events, people will begin to recognise you. This can you help to build your reputation as a knowledgeable, reliable and supportive person by offering useful information or tips to people who need it. You are also more likely to get more leads and referrals as you will be the one that pops into their head when they need what you offer.

6.     how are the internet and www used?
The internet can be used for a wide range of activities which may include sending files, general research on the World Wide Web, online chatting and electronic mail service. Internet could also be used for teleconferencing and other related services

7.     how system software diffrent from aplication software?

Operating System is the System Software that makes the Computer work. We can say that an Operating System (OS) is Software that acts as an interface between you and the hardware. It not only contains drivers used to speak the hardware's language, but also offers you a very specific graphical user interface (GUI) to control the computer.An OS can also act as an interface (from the hardware) to the other software. A complex OS like Windows or Linux or Mac OS offers the services of an OS, but also has applications built in. Solitaire, Paint, Messenger, etc. are all applications. 
Application software is the software that you install onto your Operating System. It consists of the programs that actually let you do things with your computer. These Applications are written to run under the various Operating Systems.
These include things like your word processing programs, spread sheets, email clients, web browser, games, etc. Many programs, such as most of the Microsoft Office suite of programs, are written in both Mac and Windows versions, but you still have to have the right version for your OS.
For example - Tally for Accounting, MS-Word for Word Processing etc.
So, the Operating system of a Computer is the Software that allows the Computer work. It provides the framework under which the Applications run. An operating system is the type of Computer system you have such as Window XP or Window 95, 98, Mac, etc.
The Applications are the Software that actually allows the user to do something with the Computer. Without the applications, all you can do is change settings and navigate among the folders. You can purchase its CD from a software company or download from a software company's web site.