Network Problems

Multitasking environment creates increased demand for network resources.Also the use of network intensive applications like client\server software can cause congestion.Fault management- This involves the detection and isolation of the problem that caused the failure and restoration of the service. Fault management involves trouble ticket administration, security management which is physically securing the network as well as controlling access to the network.Many times some of the network problems can be resolved using intuition.Network management versus system managementNetwork management is concerned with network resources such as hubs, switches, bridges, routers, gateways and connectivity among them via a network.System management is the management of system and system resources.

data, information and computers

Basically in a nutshell a computer is a data processing device. Whatever the computer is able to do is data processing.

Data is raw facts or facts and figures in isolation.

Information is processed data, though many times the terms data and information are used interchangeably.

A computer is an electronic data processing device.

Data plays a very vital role in computer, network and information systems so it important to have good quality data.

Some qualities of good data are :-accuracy, completeness and consistency.

Bluetooth

The heart of Bluetooth brand identity is the name, which refers to the Danish king Herald ”Bluetooth” Blaatand who unified Denmark and Norway. In the beginning of the Bluetooth wireless technology era, Bluetooth was aimed at unifying the telecom and computing industries.

Bluetooth is a technology that uses short range radio frequency (RF) that operates at 2.4 GHz and is capable of transmitting both voice and data.

The most effective range is 32 feet (10metres).Bluetooth data transfer rate is
1 Mbps, which is from three to eight times the average speed of parallel and serial ports, respectively.

Bluetooth can be used to wirelessly synchronize and transfer data among devices e.g a phone to a phone or a phone to a computer and vice versa, it is thought as a cable replacement technology.

Bluetooth can be used to access a Local Area Network or the internet wirelessly by a cellular phone.

Accessing\utilities programs easily

Using the run command line, can help you quickly maneuver through programs and utilities on your PC.
Some of the common commands you can use and the programs and utilities you can access.
All you need to do is hold down the windows logo key and then press R and type the appropriate command .

Notepad- notepad
Wordpad - write
Word- winword
MS Access- msaccess
MS Excel - excel
Solitaire- sol
Add \Remove Programs- appwiz.cpl
Disk Deframentation- dfrg.msc
Disk clean utility- cleanmgr
Display Properties- control desktop
Printers and Faxes- control printers

viruses, worms and spyware

Many computers users can hardly differentiate between Trojan horses, viruses, worm, spyware, malware and adware. In most cases users refer to the entire group as viruses.

These can be prevented or cleaned using antivirus and anti spyware software, though most antivirus software have an anti-spyware utility, it is handy to have a purely anti-spyware software .

Malware is software designed to infiltrate or damage a computer system without the user’s informed consent.

Trojan horse is a piece of malware which disguises it self as performing a certain task yet it is performing another e.g transmitting a virus eg during installation of backdoor programs.

A worm is a self-replicating program. It uses a network to send copies of itself to other nodes (computer terminals on the network) and it does so automatically.

Spyware is program that is installed secretly on a computer to intercept or take partial control over the user's interaction with the computer.

Adware or advertising-supported software is any program which automatically plays, displays, or downloads advertising material to a computer after the software is installed on it or while the application is being used.

A Virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user but it usually requires user intervention to spread.

Ease tasks with software

There over 10.000 software programs that are available on the market, many people are not even aware of them.

Your PC can perform various tasks beyond what you image it is capable of doing. This is mainly enhanced by software and additional hardware. Many of these software programs are actually freeware.

Some common software programs that you can use to simplify some tasks

Labels unlimited. To create labels

Adobe distiller. This program helps you to convert your word, Excel documents to PDF format.

PDF2Word. To convert a PDF format document to Word

Driver Magician. Searches and backups \ restores drivers on your computer.

CCleaner. Cleans the system registry for un wanted files, this software is used to optimize your personal computer.

SpeedUpMyPC. This program helps to improve PC security, performance and stability.

Internet Download Manager. The program enables you to make faster downloads on the internet.

FreeDownloadManager. It’s a freeware for faster downloads.

Data Recovery Software:- There are various data recovery software on the market. Below I give you two common ones:-

i. RecoverMyFiles

ii. File Recover

EpiInfo: A statistical, word processing and data management software for public health.

Another feature that makes windows tick

For mobility impaired users to use the computer they need a special utility to help them
The Windows Onscreen Keyboard helps users to use the mouse to use the keyboard.
To access the windows onscreen keyboard, click start, then run and type OSK and enter.

Activating, deactivating sticky keys.
When a shortcut requires a key combination , the sticky key feature helps you to press a modifier key like ctrl, windows logo key, or shift key and makes it active until you press another key.
To active sticky key feature, press shift key five times and then click on the ok button.
To deactivate sticky keys click shift key five times.