Information Technology (IT)
What is IT?
The motherboard is what holds many of a computer parts such as the GPU, RAM, CPU, heat sync...etc and is what links your parts so they can be used together.
RAM (random accessing memory) is what your computer takes from the hard drive so you have faster access to applications.
The CPU (central processing unit) is sort of like the brain which directs all the parts to do tasks. (but the CPU never does anything of those tasks)
A GPU ( graphics processing unit) like another brain with its own RAM which basically displays all your movies,games..etc. The GPU also helps reduce strain on your CPU as it can be used to display things instead of the CPU.
It is what cools and lowers the temperature of single parts of the computer like the CPU or it creates air flow inside them. You need them (or other cooling items) in your computer because many parts like the CPU or GPU may overheat causing damage onto the motherboard or maybe to the whole computer.
It basically cools a CPU or GPU by scattering the heat into the surrounding area. This will lower the temperature of the hardware so that means the hardware won't overheat and that you can overclock it
The hard drive is where the software is stored on to. This is also where all of the data is put onto.
It is what powers the internal computer by putting out low voltage DC power
It is attached onto the motherboard and without it the motherboard wouldn't run as it needs electricity for it to run.
A keyboard allows for the user to type in commands and communicate with the processing parts of the computer. This plugs into the motherboard in a PS/2 slot or a USB slot so it can be connected with the computer.
The monitor displays the outputs of a PC onto a screen showing the task that has been done and it is the display screen for the computer.
The mouse is a pointing device that detects 2-D motion only and outputs the motion onto the Monitor.
A printer basically accepts information and data from a computer which transfers the information to paper or into objects. (3D printers)
Scanners bring all sorts of printed material to your PC monitor. This is great to save physical copies digitally and you can also edit them on a PC and print off the new copy.
The Basics of Computers
- Operating System
Hardware is the physical parts of a computer that you can touch and hold while the operating system is what controls the hardware and enables you to tell what the computer to do. Applications (or software) are what allows for specialized tasks to be done on a computer such as typing a document or playing a game.
Inputs are the commands that the user makes for the computer to process, and output. Some input devices are a mouse and a keyboard. The user moves the mouse cursor and the computer processes the movement outputting onto the monitor and with the keyboard the user types in commands that the computer processes and outputs onto the monitor.
Another upgrade that should be made is the OS (operating system) as this increases your security and also patches problems in the previous OS. Doing this comes with many risks such as compatibility issues so you must check that your computer can handle the upgrade. After this upgrade external upgrades might be needed as you might want different ports or maybe more of them. Know that upgrading is made only to fix problems!
In wireless networks there are 2 "modes" which are ad hoc and infrastructure mode.
Ad hoc is basically is peer to peer mode where you can directly share printers or files with other ones. This is manly used for small and temporary networks.
Infrastructure mode is for large and non temporary networks and use one or more WAP (wireless application protocol) which allows you to use the internet, telephone...etc. The most common infrastructure which is wi-fi. Technology is always improving and wi-fi is too from 802.11.a version to 802.11n.
- Green Space
- Green Servers
- Green workers.
First of all green space involves setting up server rooms so they can cool easily like using the hot and cool aisle method where one aisle is with servers and then a column that is cool. Also buying energy efficient equipment (energy star) can help greatly safe electricity.
Green servers save electricity and can be done by turning off servers when not in use to using low power servers. Another thing is using visualization. This is basically creating virtual computers so one machine can accomplish the tasks of many computers. Having multiple computers results in more drainage of power so having one machine do all tasks can greatly save electricity over time.
Green workers means saving the electricity and space by allowing telecommuting, voice over IP and cloud computing so many can work at different places than just the office saving the companies loads of money.
There are 2 types of computers in a network which is servers and clients. Servers basically share things like files, folders and even printers while clients pretty much accesses those shared things. One thing great about networks are that a PC can be both server, client or even both! There different of clients known which are fat and thing clients. A fat client has most resources installed locally while thin client doesn't. The plus side for thin clients are that they take less power which can save electricity and money.
The areas in this are project management such as IT skills for office productivity, software architecture, service/help desk, database administration, network administration, security, networking and training, programming...etc
One of the areas that I want to be in is the programming field as it always seemed fun to create things like websites, games out of code. For this I do need to know coding languages like C++ or being platform-oriented such as Microsoft which stress visual studio.