Tugas PTI chapter 4,5 dan GSLC part 2

 This is the assignment which is give by Mr.Tri Djoko Wahjono for Chapter 4,5 and also the second GSLC assignment

Exercise Chapter 4 – Discovering Computer 2011 – Living in a Digital World

Page 247-248


True / False


1. True    2. False

3. True    4. True

5. False    6. True

7. True    8. True

9. False    10. False

11. False    12. False




Multiple Choice


1. B – central processing unit

2. B – arithmetic logic unit

3. B – registers

4. B – massively parallel processing

5. C – firmware

6. B – port replicator

7. A – docking station

8. D – front side bus






1.  H.  2. A.  3. F.

4. B.  5. D.  6. E.

7. G.  8. C.  9. I.  10.J.



Short Answer

1. > 2 types design of Tablet PC’s are slate Tablet PC and convertible Tablet PC.

> The difference between those 2 design is the location of the system unit, whether it’s below the display or below the keyboard unit.


2. > Motherboard  is the main circuit board of the system unit.

> Computer chip is a small piece of semiconducting material on which the integrated circuit are etched.


3. > The four basic operations of a machine cycle is fetching, decoding, executing, storing.

> Register functions 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. > computers, peripherals, smart phones, PDAs, cars, and other consumer electronics are Bluetooth enabled.

> A computer can become Bluetooth enabled by purchasing a Bluetooth wireless port adapter, Bluetooth PC Cards and ExpressCard modules for traditional notebook computers and Tablet PCs, and Bluetooth cards for smart phones and PDAs.

5. > Compressed air can be used to removes dust and lint from difficult-to-reach areas and removes sticky liquid spilled on keyboards.

> Before cleaning a computer, turn it off and unplug it from any electrical source.
Disconnect all cables from the port. Use compressed air to blow away dust on the computer opening. Then wipe the case of the computer using antistatic wipe, use cleaning solution and a soft cloth to clean the computer screen.
Prepare also antistatic wristband, vacuum cleaner, and antistatic wipe to clean the inside of the computer.
If you are not comfortable cleaning the inside of your computer, call professional to do it for you.


Exercise Chapter 5 – Discovering Computer 2011 – Living in a Digital World

Page 293-294


True / False


1. True    2. True

3. False    4. True

5. False    6. False

7. False    8. False

9. True    10. True

11. True    . True




Multiple Choice


1. C – ergonomic keyboard

2. A – predictive text input

3. B – multi touch

4. C – graphic tablet

5. D – Voice recognition

6. C – Music production software

7. C – radio signals

8. C – gesture recognition






1. -> b.

2. -> g.

3. -> d.

4. -> j.

5. -> e.

6. -> a.

7. -> h.

8. -> f.

9. -> i.

10. -> c.



Short Answer

1. > 3 different types of mouse devices are optical mouse, laser mouse, and air mouse.

> Their difference is by the way they detect movement of the mouse that are transmitted to the pointer. Some use light to detect movement, some use laser-based light, and others use motion-sensing device.


2. > Point; Click; Drag; Double-Click; Right-Click.

> Point = Move the mouse until the pointer on the desktop is positioned on the

item of choice

Example (Position the pointer on the screen)

Click = Press and release the primary mouse button, which usually is the left

mouse button.

Example (Select or deselect items on the screen or start a program or program feature)

Right-click = Press and release the secondary mouse button, which usually is the right

mouse button.

Example (Display a shortcut menu)

Double-click = Quickly press and release the left mouse button twice without moving

the mouse.

Example (Start or choose  a program or a program’s feature)

Drag = Point to an item, hold down the left mouse button, move the item to the

desired location on the screen, and then release the left mouse button.

Example(Move an object from one location to another or draw pictures)



3. > Optical Character Recognition (OCR) is a technology that involves reading typewritten, computer printed, or hand-printed characters from ordinary documents and translating the images into a form that the computer can process.

> Optical Mark Recognition (OMR) is a technology that reads hand-drawn marks such as small circles or rectangles.


4. > The most widely used biometric device today is fingerprint reader.

> A fingerprint reader, captures curves and indentations of a fingerprint to identify whether the ‘inputted’ fingerprint are the right one.

5. > Americans with Disabilities Act are rules for company with 15 or more employees to make a reasonable attempt to accommodate the need of physically challenged workers.

> Gesture recognition and Computerized implant devices are a way for human to provide a natural computer interface for the physically challenged people through a means of just moving a small part of the body that are still functioning.


GSLC Part 2

1.Unique facts about :

a.Seagate Technology

-Seagate Technology is one of the world’s largest manufacturers of Hard Disk Drives.They were a major supplier in the microcomputer market in 1980 after they released 5MB ST-506(which is quite huge enough capacity at that time).The Seagate Technology has 55,000 employees and leaded by 3 key people inside.They are Alan Shugart,Mark Kryder, and Stephen J.Luczo ( which is also the director of the company).The operating income of this company is about $1,486,000,000 With market capitalisation about $14,000,000,000 .

b.SanDisk Corporation

-SanDisk has more than 240 000 store fronts across the world.

-SanDisk currently holds more than 2100 patents, more than 1100 foreign patents and more than 1100 patent applications pending in the U.S. Every company that uses one of their patents needs to pay royalties to SanDisk, and nearly every handset vendor has embedded SanDisk technology.

-Their revenue is currently sitting at US$ 4.82 billion, with a total profit of US$ 1.30 billion for 2010. Their total equity is estimated to be around US$ 5.78 billion.

-SanDisk has been operating in South Africa for the last 10 years, and is currently breaking into the Nigerian and Kenyan markets. They are currently selling about 35 000 flash memory units a month.

c.Samsung Storage Devices

Samsung electronics is a South Korean multinational electronics company headquartered in Suwon, South Korea. The product which the most known is their Smartphone, the Samsung Galaxy series. Currently their best smartphone product is Galaxy S3.

In the area of storage media, in 2009 Samsung achieved a ten percent world market share, driven by the introduction of a new hard disk drive capable of storing 250Gb per 2.5-inch disk. In 2010, the company started marketing the 320Gb-per-disk HDD, the largest in the industry. In addition, it was focusing more on selling external hard disk drives. Following financial losses, the hard disk division was sold to Seagate in 2011.


Hitachi is a Japanese multinational engineering and electronics conglomerate company headquartered in Chiyoda, Tokyo, Japan. Hitachi was founded by electrical engineer Namihei Odaira in 1910 in the mountains of Ibaraki Prefecture, Japan. The first Hitachi product was a 5-hp induction electric motor. Hitachi’s first export was the electric fan in 1926 and the destination country was the US.

Hitachi Global Storage Technologies (Hitachi GST) manufactures computer hard drives. There are 3 main ranges: Hitachi Travelstar, Hitachi Deskstar and Hitachi Ultrastar. On March 7, 2011 Hitachi Global Storage Technologies was purchased by Western Digital Corporation for $3.5 billion in cash and $750 million in Western Digital common stock.


2.The OS for PC

a.Windows 8

Windows 8 is currently the newest Operating System produced by Microsoft. This Operating System was released to manufacturing on 1 August 2012, and was released generally availability on 26 October 2012. Compared to the predecessor Windows 7, the boot up time of Windows 8 is a lot faster. At first glance you will see that the new Windows 8 menu looks like OS in the Windows Phone. This is because of the new features in Windows 8, which is tiled based interfaced or Metro UI. The UI system seems like touch screen menus in tablet devices and smartphone. And here are other features in the new Windows 8:
1. Faster Boot Time
2. Innovative & Dynamic Desktop
3. Improved Search Function
4. Windows To Go
5. Windows Live Syncing
6. Windows Store
7. Built-In Antivirus with Windows Defender
8. A New Task Manager

b.Mac OS

Mac OS X Mountain Lion is the 9th major released of OS X. OS X Mountain Lion is produced by Apple Inc. and it was released on 25 July 2012. Mac OS X Mountain Lion includes features from previous versions of the Macintosh operating system such as large photo-quality icons, built-in networking support, e-mail, chat, online shopping, enhanced speech recognition, optical disc burning, and enhanced multimedia capabilities. In addition the new features in Mac OS X Mountain Lion :
1. Social integration
2. Game Center for Mac
3. Improved Notifications
4. AirPlay
5. IMessages
6. Notes and Reminders
7. Dictation on the Mac
8. Power Nap
9. Better security

OS for Server

a.Windows Server 2012

Windows Server 2012, is the current release of Windows Server. It is the server version of Windows 8 and the successor to Windows Server 2008 R2. The software was generally available to customers starting on September 4, 2012 and worldwide through multiple channels in September 2012.

Unlike its predecessor, Windows Server 2012 has no support for Itanium-based computers, and has four editions. Various features were added or improved over Windows Server 2008 R2, such as an updated version of Hyper-V, an IP address management role, a new version of Windows Task Manager, and the new ReFS file system. Here are some features in Windows Server 2012 :
1. New Server Manager: Create, Manage Server Groups
2. Better Edition, SKU Selection
3. A Command-Line First, GUI-Second Mentality
4. Hyper-V Replication
5. Expanded PowerShell Capabilities
6. Storage Spaces: Flipping Complexity on Its Head
7. DirectAccess: A VPN Without the Pain of a VPN
8. Dynamic Access Control: New Way of Thinking
9. Resilient File System: An Evolution of NTFS
10. Out-of-the-Box IP Address Management


Linux is an open source Operating System. Linux also is a multipurpose operating system. So, Linux is it can be installed on a wide variety of computer hardware, ranging from mobile phones, tablet computers and video game consoles, to mainframes and supercomputers.  Thus some network servers use Linux as their operating system. With Linux, a network administrator can configure the network, administer security, run a Web server, and process e-mail. Clients on the network can run Linux, UNIX, or Windows.

Operating System in Mobilephones

a.Iphone OS 6

Iphone OS 6, developed by Apple Inc. is an operating system for iPhone and iPod touch, With the iPhone OS, users can manage contacts and notes, send and receive e-mail and text messages, take pictures, record videos, record voice messages, view a compass, connect to the Internet wirelessly and browse the Web, check stocks, access maps and obtain directions, listen to music, watch movies and videos, and display photos. It also provides Wi-Fi access to the iTunes Music Store. Here are the new features in IOS 6 :
1. Turn-by-Turn Navigation
2. Passbook
3. Do Not Disturb
4. New Privacy Controls
5. Improved Siri
6. FaceTime over Cellular Networks
7. Facebook Integration


Android is a Linux-based operating system designed primarily for touchscreen mobile devices such as smartphones and tablet computers. Android OS is designed by Google Inc. it’s used on more 20 different types of smartphones. Android OS allows programmers to design programs specifically for devices supporting this operating system. Android OS contains features such as access to e-mail accounts, an alarm clock, video capture, access to Google Apps, Wi-Fi access, and easy Web browsing. The new features in the new Android Jelly Bean OS :
1. Project Butter
2. Widgets get automatic resizing
3. Predictive Keyboard
4. Voice Typing
5. New Camera Application
6. Android Beam enhanced
7. Notifications see improvement
8. Search gets a new user interface
9. Better Voice Search
10. Google Now





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