Thursday, December 8, 2011

December 8, 2011

Starting Point Chapter 15:
Local Area Network is well connected. It is created to share related Resources. Some examples of "Nodes" are : computer, router, printer, sensing device, video camera, and controller. This can connect to External Networks. It has a central server that everyone is communicating with. It is local. You log onto a security base. 2 major catagories pere to pere, (# of  computers lives on each of computers). They have been around awhile. Another is Client server network. With Peer-to-peer each user has to have a valid user ID and password. It is approved by the client operating system. The local user acount exists only on a single computer. One user may have many accounts on differnt server. Security principle is somthing that gains control. Without user accounts there are no problems. Accessing Shares- My network places, map network drive, internet explorer, run menue. Client/ Server Model- Server mangages security for LAN. for example User accounts, printers, and file sharing. There is Single network user ID and password. Authenticate against the NOS too. It's the domain model and the Adminstrator assigns permissions. The server stores info in the database as well. One chooses the user name, password and the network you wish to work on. The authentication is done on the server. domain means everyone is logging onto teh same server. In order for a client to participate they have to have a network client. The machine needs a domain. One has to tell it which network to join. One has to install a protocall in a network card. The point of the protocall is to connect to novel servers. Net booy is unroutable. Can't get on internet. TCPIP is what most people use. UTP and STP has Ethernet nework. UTP-Unsheieded twsited pair. STP-Shielded twisted pair.
Stopping Point Chapter 15.  1.14

Tuesday, December 6, 2011

December 6, 2011

1.5 starting point chp 14.
Getting Windows Version one goes to Command Line: VER.Or one can go to start and then run and type in Winver. Task Manager shows what software is running on the machine. Or what is taking up the most amount of memory. Control, alt, delete takes one there automatically. Or one can right click on the task bar. The 1st it does is show all the running applications. When running windows, alot of prperties are already running. If we don't see columns your looking for, look at the different processes. The performance tab shows page file usage and CPU usage. If the machine is running slow it means we're experienceing some type of overload. If the machine has users that are able to be logged on at the same time thn one uses the ussers tab. It is informative because we can know what they're doing. Services is a control pannel outlet. It allows necessary services and running unneeded services. It consumes resources and adds overhead. It adds a security risk. In windows there is a group called "start-up". It happens when you reboot your computer. Norton Anto-Virus sometimes runs automatically. If one wants info on their Microsoft
Installed Software its in your Help and Support center. error reporting is microsofts way of knowing the memory address and come up with a way of fixing it. Even Viewer is the best place to go for any amount of trouble shooting. Info of the error or if it effected a user or not. It gives warning. Mrs.Happy then told us a story... my selective hearing then kicked in ;).
Under Event Viewer is categories and event info along with event types and Remote Adm can connect to teh PC via network. Once the log file is being overwrite u can manually clear a log or make a different choice. Event Viewer is a good trouble shooter. In most machines there are usually 3 logs  in event viewer. The warning is a huge message. The registry all stystems info. Hacking is getting in there and making something else different. The registry has Keys. It is devided into sections. Values are types of data. Exporting th Resistry you 1st Open Regedit. Choose file, export, save the file with a suitable name in a secure location.
Stopping Point: Chapter 15.
Stopping Point:

Wednesday, November 30, 2011

November 30, 2011

Chapter 13: Starting Point, 1.14

Mrs Happy started the day talking about USB cards and Wifi cards. She showed us how to take out the hardware safely.Notebook Processors have AMD, Intel, and Motorola. These all are famous with tth e Notebook comptuer. The keyboards are much smallre but have the same features including the Fn key. When you hold that down you'll see alot of other function keys. The num lock key can also lock the function keys. If you hit this for example.. your letter L could be 6. Monitors have LCD technology. You can lose less power, heat, space, and glare. Notebook Pointing Devices have left button, glide surface, and a right button. Communication Connections- LAN technology, Wireless Protocols, and Linking devices all tie into this. Infrared light is being used, and speed is 9600. 10-20 ft is the range. Radio uses ones radio signal. 802.11 is traveling at 54 megabits. Bluetooth is a shortrange radio, up to 10 meters. Notebooks have a Microphonee port and a HEadphone port. 2 more review slides were showed next and she showed how to put in your PC cards. If one has a prominant card then you have to get into the laptop. Remove the power and battery. Remove the "bay", it looks like batteries. Take off the wires and then take out the two clips. This is a wireless card. Then put in your battery and plug in the power. Ones Ethernet cable can perminantely be plugged in. The Docking Station has ports, Slots for desktop cards, and Bays for drives. Maintenance: Clean the exterior case, clean the touchpad, keep the fan openings and ventialtion holes clear, Blot out dust and other materials from sensitive components. Clean the monitor. Remoove dust, crumbs, and dirt from between the keyboard keys. Also Clean the CD or DVD-ROM drive. If one takes the laptop out of the office, make sure to get a laptop case. It has a special padding in it. PDA has Calendars, Contacts, MINI applications, Games and Vertical Market Software. One can find "health and Fitness"  to Bianary Calulators. When one uses this, you have to use Grafitti. The Stylus is a small pen that acts as a touch screen. Inputs: Menues, the handwriting techniquie and a keyboard. One can tap the icons. This is stored in the body of the PDA. There's always a battery indicator on the screen. Connecting the PDA one has connection options. Cradle with USB or serial connection. Like USB, Inrared, Bluetooth, and WiFi. Synchronizing info, Palm Desktop or WIndows CE or Pocket Pc. ACT is a sales deal. Temporary Files: keeps track of current statuses on an activity. It begins with the "eyebrow key" or ends with.  .tmp.  We're going to look for certain files. Delete files that are not in use. One sometimes doesn't know where the file is and then you can search for it. When you want to undelete by using "Undelete". Recycling bin belongs to Windows. Window Diagnostics falls into many different categories. In order to access system info go to system tools from the start menu. It takes a minute to refresh info. The plus and minus signs allow you to hide/see information. Some favorite parts is getting information from other users. One can look for various files and folders.
Stopping Point Chapter 14. 1.5

Monday, November 28, 2011

November 28, 2011

Sarting Point- Chapter 13

Some network connections are Ethernet, and Wireless, etc. With laptops, one can change a lot of things. Like USB, and Firewire. Hot Swap is where one could take out their dvd dslot and put in thier floppy disk drive. The laptop then recognized it. Non-Hot-Swappable, requires the laptop to be turned off, and power drained, battery removed. And Internal (memory, and hard disk). If one wishes to upgrade the memory, they need to make sure they becareful whats under the "hood". Make sure you buy the memory ship that is the correct one. One can have the same issues with notebook computers, are the same you can have with a  larger desktop computer. People have put protective covers, under your keyboard to keep the internal components safe. One of the biggest dangers of keyboards is crumbs. If one damages the touch screen, it can be hard to fix. Notebook batteries, provide 30 min to 8hrs of powers. The power Utility will recognize C power. They can be recharged when you plug them into AC Power as well. It takes about an hour to fully recharge a laptop. The Notebook has a computer plu, outlet plyg and Transformer. Power Indicator lights appear on a laptop. Solid green is "up and running". The nice thing about laptops is that they can run on Battery power. They're good for on the go. In "Power Options" menu, there is "Power Schemes, Alarms, Power Metter, and Advanced, and Hibernate". If you think you're having power problems, check the power lights. That's the first thing to do.
Stopping Point: 1.14

Tuesday, November 22, 2011

November 22, 2011

Starting Point: Disk 4

Printers! Yay!...) Printers can connect and be a USB.
First type: Dot-Matrix Printter. Impact printer where the inked ribbon striked the paper. It is great for multipart forms. It has tractor feed, and friction feed. It has serial or parallel connections.Printer Drivers are important. One has to have the correct one. Print uality can depend on if you have the right driver. A safety issue is making sure you have your hair pulled back! Or.. OUCH!:)
And Ink Jet Printer, are very inexpensive, and very nice. They are different though when they are compared. Ink Dispersion is where it forces ink through nozzles onto the paper. (like it's painted). It heats up the ink and then creates a bubble whch then explodes and sends ink to the paper. The cartridges can come in black and color. the rpinter can have 300- to 600 nozzles. It is cheaper to get colors for the printer then just one color cartridge. In terms of quality, your resolution is dpi(dot. per. inch)  If one has a thin absorbant paper then you will lose ink. It will lower your graphics. In order to hook up a printer one has to be in the local administrator.
Straight  path, and curved path were talked abuot next. On the curved, the paper is fed through the bottom. Printers are becommng less expensive everyday. Ink cartridges are used up fast. Toner, however, lasts longer. It uses Ep. It staticlly charges it with a laser light. Laster Printer components are Laster scanning assembly, Power supplis, Paper control and transport assembly. and Electroic control Package. The power supplies are very High Voltage. These printers are more complex but have, high volume and faster.

Stopping Point::1.17

Monday, November 14, 2011

November 14, 2011

Hand Held scanners are usually for bar code readers. Like for UPS.  To track inventories, and grocery stores etc. It uploads all the information. Digital Cameras have connections like usb, FIrewire, Hp Printers, Memory Card Readers, and Docking. This works well with plug and play. Digital Camera Connections-USB is with still cameras. Firewire is with video. Batteries-Rechargeable, disposable, and if so then digital rated. Card Readers, Built in, and external device. Some problems are like lower battery. If not uploading correctly it might not be detecting the cable. The camera mode is where you can put it in and it will be in mode.
Stopping Point- End of disk 3

Thursday, November 10, 2011

November 10, 2011

Right click and then up to display and to control pannel. She showed one how to change properties and display deals. If one installs their video card they would have more colors to choose from. Sometimes you won't see all the tabs. One can ruin their hardware. Display properties have tabs of Themes, desktop, screensaver, appearance, and settings. Each of these tabs does someting unique. There are a lot of different things one is able to change in this are of the computer. One can change the color settings and make sure they have it set up the way they want it. Video connectors have different pins and then they have things that transmit something. Make sure there is no bent pins. if you try to bend it back you do not want to try to bend it back because u might just break it. Red, green, and blue, send things out. Each of the pins have a purpose and so if one is bent the purpose is ruined as well. Their are alot of display adjustments. LIke brightness and color etc. There are many different things that get you to switch setings. It's like trial and error. Every monitor is different. CRT issues: screen could be black. Image might flicker or distorts. Noisy monitor, or image scrolling. If it's flickering it might be a bent pin. The flat pannel (LCD) is becomming less expensive. there is a lot of lesss glare. The flat pannel is producing a nice clear image. characteristcs are like the screen size, viewing angle, response rate, contrast rate, native resolution, brighness, and alot of other features. A lot of the flatpannels have built in speakers, and will come with an installation disk. There are 24 pins of the DVI. TMDS- Transmits data to a digital monitor.  Touch Screens have a touch-sensitive surface. Some of the uses are : PDA, POS, ATM, GPS. Another form of displays are projectors. It duplicates images on your wall. Speakers are related but alot of the monitors have speakers themselves. Speakers can be connected together. Scanners can scan pictures, documents etc. Most use a TWAIN scanner. A flatbed scanner is where it scans the the image and will save it to your computer. It's similar to a office copier.
Stopping Pont 1.37 Hand-Held Scanner