Blackberry

Embedded Linux is the use of Linux in embedded computer systems such as mobile phones, personal digital assistants, media players, set-top boxes, and other consumer electronics devices, networking equipment, machine control, industrial automation, navigation equipment and medical instruments.

Symbian is a mobile operating system (OS) and computing platform designed for smartphones and currently maintained by Nokia. The Symbian platform is the successor to Symbian OS and Nokia Series 60

4. Explain the purpose of several utility programs: file manager, search utility, image viewer, uninstaller, disk cleanup, disk defragmenter, backup and restore utilities, screen saver, personal firewall, antivirus programs, spyware and adware removers, Internet filters, file compression, media player, disc burning, and personal computer maintenance.

A file manager or file browser is a computer program that provides a user interface to work with file systems.

Image List control is used to place images onto your forms and to use these images in toolbars, menubars, we use the image list control.

Disk Cleanup (cleanmgr.exe) is a computer maintenance utility included in Microsoft Windows designed to free up disk space on a computer's hard drive.

Disk Defragmenter is a utility in Microsoft Windows designed to increase access speed by rearranging files stored on a disk to occupy contiguous storage locations, a technique called defragmentation.

The Backup utility in Windows XP and in Windows Vista helps you protect your data if your hard disk stops working or your files are accidentally erased.

System Restore can then allow you to undo (or "roll back") a change that caused instability in your system.

original function for the screen saver was to protect the monitor from damage when a single data or picture screen was left pulled up for an extended period of time.

personal firewall will usually protect only the computer on which it is installed.

Antivirus software is your last line of defense against the many harmful programs out there that can destroy your computer.

Spyware is a type of malware that can be installed on computers, and which collects small pieces of information about users without their knowledge.

Adware also can gather information about user’s habits and interests and send it out through a background Internet connection.

quiz 6 - answer

1.Define system software and identify the two types of system software.

System software is computer software designed to operate the computer hardware and to provide a platform for running application software.

Basic types of system software are:

·  Computer BIOS and device firmware

·  Operating system

·  Utility software

2.Briefly describe various server operating systems: Windows Server, UNIX,Linux, Solaris, and NetWare.

Windows Server is a brand name for a group of server operating systems released by Microsoft Corporation

Unix (officially trademarked as UNIX, sometimes also written as Unix) is a multitasking, multi-user computer operating system

Linux refers to the family of Unix-like computer operating systems using the Linux kernel.

Solaris is a Unix operating system. Solaris is known for its scalability, especially on SPARC systems, and for originating many innovative features such as DTrace, ZFS and Time Slider.

NetWare is a network operating system

3.Summarize the features of several embedded operating systems: Windows Embedded CE, Windows Mobile, Palm OS, iPhone OS, BlackBerry, Google Android, Embedded Linux, and Symbian OS.

Windows Embedded CE 6.0 R3 is a real-time operating system for a wide range of small-footprint consumer and enterprise devices.

Windows Mobile is a mobile operating system developed by Microsoft that was used in smartphones and mobile devices,

Palm OS (also known as Garnet OS) is a mobile operating system. Palm OS is designed for ease of use with a touchscreen-based graphical user interface.

iOS (known as iPhone OS before June 2010) is Apple's mobile operating system. Originally developed for the iPhone, it has since been extended to support other Apple devices such as the iPod touch, iPad and Apple TV.

 

1. Discuss the components required for successful communications.

Sender, beneficiary, and a atmosphere. That's in the order of the most chief definition of the components of computer network.

2. Identify various sending and receiving devices.

A sending device initiates the transmission of data, instructions, and information while a receiving device accepts the items transmitted.

      Microcomputers 

    minicomputers 

    mainframes

            cellular telephones 

          pagers

3. Describe uses of computer communications.

4. List advantages of using a network.

       share software

       share information with others on networks

       share peripherals

       speed of sharing software and information files

       cheaper than buying individual software and hardware for each standalone especially if for a school, network software often offers deals for amount being purchased

       security, files can be copy inhibit mode

       centralized software management- software being loaded onto one computer but also this loads software to entire network at one time

       electronic mail(e-mail) between network users, ideal for office memos

       flexible access- access you files from any computer on the network unlike standalone which would mean only being able to access your data from the one computer you uploaded data onto

5. Differentiate among client/server, peer-to-peer, and P2P networks.

Client/server describes the relationship between two computer programs in which one program, the client, makes a service request from another program, the server, which fulfills the request.

Peer-to-peer is a communications model in which each party has the same capabilities and either party can initiate a communication session.

Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers.

6. Describe the various network communications standards.

7. Explain the purpose of communications software.

Communication software is used to provide remote access to systems and is also used to exchange messages in text, audio and video format for the purpose of communication. These software send and receive data over telephone lines through modems. The communication software allows computers in different geographical regions to communicate with each other through terminal emulators, file transfer programs, chat and instant messaging programs.

8. Describe various types of lines for communications over the telephone network.

9. Describe commonly used communications devices.

      Radio

      Telephone systems

      Pagers

      Navigation systems

      PDA's (Personal Digital Assistant)

      Computer

10. Discuss different ways to set up a home network.

Wired Network

To set up a home network that is wired, you will need to have a network card in each computer, a router, and enough cables to connect them all.  You will also need the documentation that came with your router.  

• Step 1 - Connect the cable from your internet modem to the port on the router labeled either uplink, or internet in most cases.  
• Step 2 - Connect the first computer to anyone of the other ports.  
• Step 3 - Log into your router refer to the information that came with your router.  This is usually done by entering 192.168.0.1 or 192.168.1.1 into your address bar.  Your documentation will tell you which one.  
• Step 4 - Enter the username and password that is instructed by your router documentation.  
• Step 5 - You should now be in the router setup.  Enter all the information for internet, you will need the protocol, PPPoE in this case, the username and password from your internet service provider.  Click on Save when done.

11. Identify various physical and wireless transmission media.

For physical transmission Media there are:

      Twisted-Pair Cable

      Coaxial Cable

      Fiber-Optic Cable

For wireless trasmission media there are:

      Broadcast Radio

      Cellular Radio

      Microwaves

Quiz 7

1. Discuss the components required for successful communications

Sender, beneficiary, and a atmosphere. That's in the order of the most chief definition of the components of computer network.

2. Identify various sending and receiving devices.

A sending device initiates the transmission of data, instructions, and information while a receiving device accepts the items transmitted.

      Microcomputers, minicomputers, and mainframes all can serve as sending and receiving devices.

Besides, Internet appliances and Web enabled handheld computers and devices (e.g., cellular telephones and pagers) can also serve as sending and receiving devices.

3. Describe uses of computer communications.

4. List advantages of using a network.

       share software

       share information with others on networks

       share peripherals

       speed of sharing software and information files

       cheaper than buying individual software and hardware for each standalone especially if for a school, network software often offers deals for amount being purchased

       security, files can be copy inhibit mode

       centralized software management- software being loaded onto one computer but also this loads software to entire network at one time

       electronic mail(e-mail) between network users, ideal for office memos

       flexible access- access you files from any computer on the network unlike standalone which would mean only being able to access your data from the one computer you uploaded data onto

5. Differentiate among client/server, peer-to-peer, and P2P networks.

Client/server describes the relationship between two computer programs in which one program, the client, makes a service request from another program, the server, which fulfills the request.

Peer-to-peer is a communications model in which each party has the same capabilities and either party can initiate a communication session.

Peer-to-peer (P2P) computing or networking is a distributed application architecture that partitions tasks or workloads between peers.

6. Describe the various network communications standards.

7. Explain the purpose of communications software.

Communication software is used to provide remote access to systems and is also used to exchange messages in text, audio and video format for the purpose of communication. These software send and receive data over telephone lines through modems. The communication software allows computers in different geographical regions to communicate with each other through terminal emulators, file transfer programs, chat and instant messaging programs.

8. Describe various types of lines for communications over the telephone network.

9. Describe commonly used communications devices.

      Radio

      Telephone systems

      Pagers

      Navigation systems

      PDA's (Personal Digital Assistant)

      Computer

10. Discuss different ways to set up a home network.

Wired Network

To set up a home network that is wired, you will need to have a network card in each computer, a router, and enough cables to connect them all.  You will also need the documentation that came with your router.  

• Step 1 - Connect the cable from your internet modem to the port on the router labeled either uplink, or internet in most cases.  
• Step 2 - Connect the first computer to anyone of the other ports.  
• Step 3 - Log into your router refer to the information that came with your router.  This is usually done by entering 192.168.0.1 or 192.168.1.1 into your address bar.  Your documentation will tell you which one.  
• Step 4 - Enter the username and password that is instructed by your router documentation.  
• Step 5 - You should now be in the router setup.  Enter all the information for internet, you will need the protocol, PPPoE in this case, the username and password from your internet service provider.  Click on Save when done.

11. Identify various physical and wireless transmission media.

For physical transmission Media there are:

      Twisted-Pair Cable

      Coaxial Cable

      Fiber-Optic Cable

For wireless trasmission media there are:

      Broadcast Radio

      Cellular Radio

      Microwaves

Communication Satellite