Thursday, December 20, 2012

Answers of Chapter 10 "Discovering Computers 2011 : Living in a Digital World"

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

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

Matching
1.e
2.g
3.c
4.b
5.j
6.a
7.i
8.d
9.h
10.f

Short Answers
1. Validation is the process of comparing data with a set of rules or values to see if the data is correct.
The five types of validation checks : alphabetic checks, numeric checks, range checks, consistency checks, and completeness checks.

2. Because data redundancy will make the process of inputting new data longer and also increase the chance of errors.
Because isolated datas will limit the access of data that is actually needed for certain purposes since different data are stored in different file.

3. A program to share the data in database.
The 5 strength of database approach : reduced data redundancy, improved data integrity, shared data, easier  access, reduced development time.

4. I might use the Simple Query Wizard to search the information I need from a database so it will cut my time more.
Query by example is a feature that has a graphical user interface to assist users with retrieving data.

5. Object-oriented databases have several advantages compared with relational databases: they can store more types of data, access this data faster, and allow programmers to reuse objects.
Examples of applications appropriate for an object-oriented database include the following:

• A multimedia database stores images, audio clips, and/or video clips. For example, a GIS (geographic
information system) database stores maps and other geographic data. A voice mail system database stores audio messages. A television news station database stores audio and video clips.
• A groupware database stores documents such as schedules, calendars, manuals, memos, and reports. Users perform queries to search the document contents. For example, you can search people’s schedules for available meeting times.
• A computer-aided design (CAD) database stores data about engineering, architectural, and scientific designs. Data in the database includes a list of components of the item being designed, the relationship among the components, and previous versions of the design drafts.
• A hypertext database contains text links to other types of documents. A hypermedia database contains text, graphics, video, and sound. The Web contains a variety of hypertext and hypermedia databases. You can search these databases for items such as documents, graphics, audio and video clips, and links to Web pages.

Answers of Chapter 9 "Discovering Computers 2011 : Living in a Digital World"

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


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

Matching
1.e
2.j
3.h
4.d
5.f
6.a
7.g
8.b
9.c
10.i

Short Answers
1. Text messaging allows users to send and receive short text messages, typically fewer than 300 characters, on a phone or other mobile device or computer.
Options for text messaging :
• Mobile to Mobile: send a message from your mobile device to another mobile device
• Mobile to E-Mail: send a message from your mobile device to an e-mail address
• Web to Mobile: send a message from a text messaging Web site to a mobile device, or request that a Web site alert a mobile device with messages of breaking news and other updates
• Mobile to Provider: send a message by entering a common short code (CSC), which is a four- or five-digit number assigned to a specific content or wireless service provider, followed by the message, such as a vote for a television program contestant or an entry for a sweepstakes.

2. GPS satellites orbit Earth. Every thousandth of a second, each satellite sends a signal that indicates its current position to the GPS receiver, which determines its location on Earth by analyzing at least 3 separate satellite signals from the 24 satellites in orbit.
Individuals use the GPS in their mobile phone, vehicle, or may be to know their children's location, so they put the receiver on the children's bag, etc.

3. A local area network (LAN) is a network that connects computers and devices in a limited geographical area such as a home, school computer laboratory, office building. A metropolitan area network (MAN) is
a high-speed network that connects local area networks in a city or town and handles the bulk of communications activity across that region. A wide area network (WAN) is a network that covers a large geographic area (such as a city, country, or the world) using a communications channel that combines many types of media such as telephone lines, cables, and radio waves.

A wireless LAN (WLAN) is a LAN that is wireless.


4. A network topology refers to the layout of the computers and devices in a communications network. Five types of digital dedicated lines are ISDN lines, DSL, FTTP, T-carrier lines, and ATM.

5. Three types of digital modems are ISDN modems, DSL modems, and cable modems.

An ISDN modem sends digital data and information from a computer to an ISDN line and receives digital data and information from an ISDN line. A DSL modem sends digital data and information from a computer to a DSL line and receives digital data and information from a DSL line.A cable modem, sometimes called a
broadband modem, is a digital modem that sends and receives digital data over the cable television (CATV) network.

Sunday, December 16, 2012

Answers of Chapter 8 "Discovering Computers 2011 : Living in a Digital World"

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

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

Matching
1.f
2.c
3.g
4.d
5.e
6.h
7.a
8.b
9.i
10.j

Short Answers
1. When turning on a computer that has been powered off completely, you are performing a cold boot. A warm boot is the process of using the operating system to restart a computer.

The kernel is memory resident, which means it remains in memory while the computer is running. Other parts of the operating system are nonresident, that is, these instructions remain on a storage medium until they are needed.

2. A user interface controls how you enter data and instructions and how information is displayed on the screen.

With a graphical user interface (GUI), you interact with menus and visual images such as buttons and other graphical objects to issue commands. While to configure devices, manage system resources, and troubleshoot network connections, network administrators and other advanced users work with a command-line interface.

3. With an operating system, you can download and install important operating system and utility updates. updates can include fixes to program bugs, or errors, enhancements to security, modifications to device drivers, access to new or expanded components such  as desktop themes or games, and even updates to application software on the computer such as a Web browser or an e-mail program, and the automatic update feature automatically alert users when an update is available; further, it can be configured to download and install the update automatically.

4. During the back up process, the utility monitors progress and alerts you if it needs additional media, such as another disc.

Because they are compressed, you usually cannot use backup files in their backed up form. If you need to use a backup file, a restore utility reverses the process and returns backed up files to their original form. Backup utilities work with a restore utility.

5. Popular embedded operating systems include Windows Embedded CE, Windows Mobile, Palm OS, iPhone OS, BlackBerry, Google Android, embedded Linux, and Symbian OS. Windows Embedded CE is a scaled-down Windows operating system designed for use on communications, entertainment, and computing devices with limited functionality. Windows Mobile, an operating system based on Windows Embedded CE, provides a user interface designed for specifi c types of smart phones and PDAs. Palm OS is an operating system used on smart phones and PDAs. iPhone OS,
The BlackBerry operating system runs on handheld devices supplied by RIM. Google Android is an operating system developed by Google for mobile devices. Embedded Linux is a scaled-down Linux operating system for smart phones, PDAs, portable media players, and other devices requiring an embedded operating system. Symbian OS is an open source multitasking operating system designed for smart phones.

Friday, December 14, 2012

Answers of Chapter 7 "Discovering Computers 2011 : Living in a Digital World"

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

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

Matching
1.h
2.c
3.a
4.e
5.f
6.j
7.d
8.b
9.i
10.g

Short Answers
1. A network attached storage (NAS) device is a server connected to a network with the sole purpose of providing storage.
Six Terabytes and more.

2. Advantages of SAS over parallel SCSI include thinner, longer cables, reduced interference, less expensive, support for many more connected devices at once, and faster speeds.

SAS interfaces support connections to optical disc drives, printers, scanners, digital cameras, and other devices.

3.  Multisession disc means we can write on part of the disc at one time and another part at a later time.
Many people use archive discs and picture discs to preserve their photos.

4. People use memory cards because memory cards enable mobile users easily to transport digital photos, music, or files to and from mobile devices and computers or other devices.

Common types of memory cards include CompactFlash (CF), Secure Digital (SD), Secure Digital High Capacity (SDHC), microSD, micro SDHC. CompactFlash (CF) is used on digital cameras, smart phones, PDAs, photo printers, portable media players, notebook computers, desktop computers. Secure Digital (SD) is used on digital cameras, digital video cameras, smart phones, PDAs, photo printers, portable media players. Secure Digital High Capacity (SDHC) is used on digital cameras. The microSD is used on Smart phones, portable media players, handheld game consoles, handheld navigation devices. The micro SDCH is used on Smart phones, portable media players, handheld game consoles, handheld navigation devices.

5. The difference is the size ; Microfilm is a 100- to 215-foot roll of film. Microfiche is a small sheet of film, usually about 4x6 inches.
Libraries use these media to store back issues of newspapers, magazines, and genealogy records. Some large organizations use microfilm and microfiche to archive inactive files. Some banks use them to store transactions and canceled checks. The U.S. Army uses them to store personnel records.

Friday, November 2, 2012

Answers of Chapter 6 "Discovering Computers 2011 : Living in a Digital World"

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

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

Matching
1. d
2. j
3. g
4. h
5. f
6. c
7. a
8. e
9. b
10. i

Short Answers
1. A higher resolution uses a greater number of pixels and thus provides a smoother, sharper, and clearer image. As you increase the resolution, however, some items on the screen appear smaller.
    With LCD monitors and screens, resolution generally is proportional to the size of the device.

2.  HDTV is working with digital broadcast signals, transmitting digital sound, supporting wide screens, and providing resolutions up to 1920 3 1080 pixels.
     Users plug one end of a cable in the game console and the other end in the video port on the television.

3. Printing using Bluetooth or Infrared.
    With Bluetooth printing, a computer or other device transmits output to a printer via radio waves. With infrared printing, a printer communicates with a computer or other device using infrared light waves.

4. Ink-jet printer forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper.
    Professionals require high image quality, such as photography studios, medical labs, and security identification systems, use dye-sublimation printers. These high-end printers cost thousands of dollars and print images in a wide range of sizes. Most dye-sublimation printers for the home or small business user, by contrast, typically print images in only one or two sizes and are much slower than their professional counterparts.

5. Surround sound system may contain speakers ( either satellite one or center one or rear one) and subwoofer.
    Audio resolution is is the number of bytes that represent sound in a given time, is stated as a bit rate such as 8-bit, 16-bit, or 24-bit. The three examples of audio resolution is AM radio (8 bit), optical disc-quality sound (16 bit), and high quality digital audio editing (24 bit).

Friday, October 26, 2012

Pokemon White 2 and Black 2 ROM Download link and Fix Code

For those pokemon lovers, Pokemon White 2 and Black 2's arrival is the happiest thing ever, so am I. So, here I provide the link for those who want to find the ROM for playing the game, as well as the greatest emulator ever.



The ROMs:
http://www.youtube.com/watch?v=RW2oRJLyjWY


The code to fix the freeze + tutorial:
http://www.youtube.com/watch?v=xgjpNbT2dhc&feature=related


No$Gba Emulator:
http://www.nogba.com/no$gba-download.htm


No$Zoomer (optional, just to make more enjoyable gameplay):
http://www.4shared.com/file/112004303/8c86dd50/NO_Zoomer_2301_Eng__by_fidorulez17.html


Just play the ROM using DeSmuME 0.98 with below's configuration
http://www.youtube.com/watch?v=KOKvZNLsSRs


Enjoy your days ! Gotcha Catch'em All !

Thursday, October 25, 2012

Answers of Chapter 5 "Discovering Computers 2011 Living in a Digital World"

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


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


Matching
1. b
2. g
3. d
4. j
5. e
6. a
7. h
8. f
9. i
10. c

Short Answers
1. Optical mouse, laser mouse, air mouse.
    Optical mouse uses devices that emit and sense light to detect the mouse’s movement, while laser mouse uses laser. Air mouse is a motion-sensing mouse that, in addition to the typical buttons, allows you to control objects, media players, and slide shows by moving the mouse in predetermined directions in the air.

2. Point, click, right-click, double-click, triple-click.
    Point is the action of moving the mouse until the pointer on the desktop is positioned on the item of choice. Click is pressing and release the primary mouse button, which usually is the left mouse button. Right click is pressing and release the secondary mouse button, which usually is the right mouse button. Double click is the action of quickly pressing and release the left mouse button twice without moving the mouse. Triple click is the action of quickly pressing and release the left mouse button three times without moving the mouse.

3. OCR is a technology that involves reading typewritten, computerprinted, or hand-printed characters from ordinary documents and translating the images into a form that the computer can process.
    OMR is a technology that reads hand-drawn marks such as small circles or rectangles.

4. The most widely used biometric device today is a fingerprint reader.
    A fingerprint reader, or scanner, captures curves and indentations of a fingerprint. The reader can be set up to perform different functions for different fingers; for example, one finger starts a program and another finger shuts down the computer.

5. The Americans with Disabilities Act (ADA) requires any company with 15 or more employees to make reasonable attempts to accommodate the needs of physically challenged workers.
    Computers with gesture recognition capability have the potential to recognize sign language, read lips, track facial movements, or follow eye gazes. For paralyzed or speech impaired individuals, a doctor will
implant a computerized device into the brain.

Answers of Chapter 4 "Discovering Computers 2011 Living in a Digital World"

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

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

Checkpoint
1. h
2. a
3. f
4. b
5. d
6. e
7. g
8. c
9. i
10. j

Short Answers
1. Slate and Convertible.
    In slate design, the system unit is behind the display. In convertible design, the display attaches to the system unit with a swivel-type hinge, which enables a user to rotate the display and fold it down over the keyboard to look like a slate Tablet PC.

2. Motherboard is the main circuit board of the system unit.
    Computer chip is a small piece of semiconducting material, usually silicon, on which integrated circuits are etched.

3. Four basic operations in machine cycle : comparing, decoding, executing, pipelining.
    Registers function include storing the location from where an instruction was fetched, storing an instruction while the control unit decodes it, storing data while the ALU computes it, and storing the results of a calculation.

4. Many computers, peripherals, smart phones, PDAs, cars, and other consumer electronics are Bluetooth-enabled.
    The three ways to use Bluetooth is using Bluetooth-enabled device or purchase Bluetooth wireless port adapter or Bluetooth PC Cards and ExpressCard modules for traditional notebook computers and Tablet PCs or Bluetooth cards for smart phones and PDAs.

5. Compressed air is used to to blow away dirt from any openings on the case, such as drives, slots, ports, and fan vents.
    Before cleaning the computer, turn it off, and if necessary, unplug it from the electrical outlet, remove the battery, and disconnect all cables from the ports.

Tuesday, October 9, 2012

Ebook for "Discovering Computers 2011 : Living in a Digital World"

Here I provide the link to download the ebook of Discovering Computers 2011 : Living in a Digital World.
It's in PDF file and maybe quite big in bytes, but I think it's worthy.
Hopefully this link will be helpful to you guys.
Cheers !!!

Answers of Chapter 3 "Discovering Computers 2011 : Living in a Digital World"

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

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

Checkpoints
1. i
2. e
3. j
4. b
5. d
6. l
7. a
8. g
9. k
10. c


Short Answers
1. Utility programs typically offer features that provide an environment conducive to successful use of application software. For example, utility programs protect a computer against malicious software and unauthorized intrusions, manage files and disks, compress files, play media files, and burn optical discs.
Malware is a program that acts without a user’s knowledge and deliberately alters the computer’s operations.

2. Presentation software incorporates some of the features found in word processing software such as checking spelling, formatting, providing research capabilities, recognizing handwritten text and drawings, and creating Web pages from existing slide shows.

Presentation software typically includes a clip gallery that provides images, photos, video clips, and audio clips to enhance multimedia presentations.


3. Travel and mapping software allows users to display maps by searching for an address, postal code, telephone number, or point of interest (such as airports, lodging, and historical sites).

Popular reference software includes encyclopedias, dictionaries, and health/medical guides.

4. Computer-based Training (CBT) is a type of education in which students learn by using and completing exercises with instructional software.

Beginning athletes, for example, use CBT programs to learn the intricacies of baseball, football, soccer,
tennis, and golf. The military and airlines use CBT simulations to train pilots to fly in various conditions and environments.

5. Many websites utilize Web-based Training, especially for those who supports E-learning and Distance Learning (DL).

To enhance communications, e-learning systems also may include video conferencing, e-mail, blogs, wikis, newsgroups, chat rooms, and groupware.


Answers of Chapter 2 "Discovering Computers 2011 : Living in a Digital World"

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.

Answers of Chapter 1 in "Discovering Computers 2011 : Living in a Digital World"

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

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


Matching
1. a
2. j
3. g
4. d
5. h
6. b
7. f
8. i
9. c
10. e

Short Answers
1. A computer is an electronic device, operating under the control of instructions stored in its own memory, that can accept data, process the data according to specified rules, produce results, and store the results for future use.
The information processing cycle is input, process, output, storage.


2. Prolonged or improper computer use can lead to injuries or disorders of the hands, wrists, elbows, eyes, neck, and back. Besides, computers usage can lead to another health risk, computer addiction .Computer addiction occurs when someone becomes obsessed with using a computer.

Computer manufacturing processes and computer waste are depleting natural resources and polluting the environment. When computers are discarded in landfills, they can release toxic materials and potentially
dangerous levels of lead, mercury, and flame retardants.



3. A Web application is a Web site that allows users to access and interact with software from any computer or device that is connected to the Internet.
Web 2.0 provide a means for users to share personal information, allow users to modify the Web site contents, and/or have software built into the site for users to access.


4. Seven categories of computer : PC, mobile computers/devices, embedded computer, super computer, mainframes, servers, and game consoles.

A computer’s size, speed, processing power, and price determine the category it best fits.



5. Many Web sites provide up-to-date medical, fitness, nutrition, or exercise information. These Web sites also maintain lists of doctors and dentists to help you find the one that suits your needs. They have chat rooms, so that you can talk to others diagnosed with similar conditions. Some Web sites even allow you to order prescriptions online.

Through telemedicine, health-care professionals in separate locations conduct live conferences on the computer. While telesurgery, also called remote surgery, a surgeon performs an operation on a patient who
is not located in the same physical room as the surgeon.

Additional use of this blog

Since I am enrolling in university studies, I will use this blog as another means for submitting my tasks as well. However, I'll keep trying provide you another information as what I did in past.
Sorry for some inconveniences.
Cheers !!!

Friday, October 5, 2012

A come back cheers !!!

Hello guys, it has been 3 years since my last post (it's too long). Sorry for not giving more information about things there. In this 1 year period, I experienced a lot of new things and I changed from just a Junior High School to a University student. I am really delighted that I finally reach this level.

Currently, I am taking Computer Science in Bina Nusantara University. Fortunately, I am in the Smart Class. It is a class taught in English (around 90%). I think this feature is really important, because it is a great advantage to always hear, write, and speak foreign languages, especially English. That's why I decided to join this special class when invited.

Overall, study in BiNus is a great thing to do. You will face new materials that you never face before in Senior High School, but they will acquire your basic in your last level of study, so be sure to prepare well your basic, especially in logic and mathematics (for Computer Science future undergraduates). If you are interested enough to join this university, I will say, "Go and take it !" The reason is simple, BiNus University will not lose in competing with other universities. It has controlled, good rules, comfortable study environment, and supportive teams or groups for your either hard skills or soft skills.

OK guys, that's all for this time. Since I am still the fresh undergraduate, I am not able to share many experiences with you all about my life in BiNus University, but I will keep updating the latest news to you all regarding my study and facts about the great BiNus University.

Keep moving forward, look to the front, and reach your dreams !!!