A case that contains the electronic components of the computer that are used to process data
The basic parts of a computer system are held in a case called the system unit. The system unit can be tall or short or can include a monitor, as with some Macintosh/apple computers. You will not need to open your computer system but knowing what s inside and how the parts work together is important.
Inside the system unit there are several green plastic or fiberglass boards called circuit boards. The largest circuit board is the motherboard. It is about the size of a notebook paper. In the desktop system unit the motherboard is flat on the bottom. The mother board usually contains several kinds of chips. The largest circuit board is the central processing unit. It is also called a microprocessor.
HARD DRIVE
Hard drives spin at 3600 or more rpm (Revolutions Per Minute) – that means that in one minute, the hard drive spins around over 3600 times! Today’s hard drives can hold a great deal of information – sometimes over 20GB! Inside the hard disk drive case you will find circular disks, referred to ask platters, that are made from polished steel. On the platters, there are many tracks or cylinders.
The Essay on Hard Drive Computer Motherboard Case
The retail market on electronics is quite interesting. Prices go up and down everyday. Nowadays, manufacturers can buy all the raw materials at very cheap prices. Once the product is made and a profit is soon to be made. I, myself, am an IT guy. I do my best in keeping up with the market prices and values of products. Computers for example, the prices of the parts are quite inexpensive nowadays, ...
The CPU is the part that directs all the other parts to do their jobs. The CPU: Carries out user instructions Collects items stored in primary storage or memory Sends messages between the CPU and other computer elements Carries out the steps in a program Tells other pieces of equipment such as a printer or modem what to do and when to do.
Also included on the motherboards are expansion boards. They fit into slots called expansion slots on the motherboard. They allow an input/output device to communicate with the CPU.
On the inside of the case, they are connected to expansion cards. The keyboard, mouse, monitor, and printer all plug into ports. There are also extra ports to plug in extra hardware like gamepads, scanners, digital cameras and the like. The ports are controlled by their expansion cards which are plugged into the motherboard and are connected to other components by cables – long, flat bands that contain electrical wiring.
Ports are the door into your computer. They are entrances and exits that lead to other pieces of equipment. You find ports on the back of your system unit. You attached other pieces of equipment through a port connection. Ports are rectangular or round, they are labeled. They are measured by the number of pins that can be plugged into them. You must match the pin pattern and shape of the port to the plug. Busses are street within the computer along which the information passes between the CPU and other chips. The copper wires running along a motherboard are bus lines.
• They are called peripherals. • They are measured by the number of pins that can be plugged into them. • You must match the pin pattern and shape of the port to the plug.
RAM is held in a strip of chips called a single in line memory module SIMMs. It is usually measured in megabytes in multiple of 4 e.g. 16, 32, 64 ROM chips carry out several important functions. They tell the computer what to do and when your turn on your computer. It also contains directions that help the CPU send information from the keyboard to the screen and printer. A ROM chip tells the computer to form characters on the screen from patterns of dots. Data has to enter and leave the computer so a computer needs an input/output system. Data must travel from one chip to another inside the computer.
The Essay on How to build a computer 2
In order to build a computer you need to have a computer case where all the components of the computer will be stored. There are tow types of computer cases. The first type is called AT case which is used for the older computers, and the second one is called ATX case which is used for resent computers. Cases also come in different sizes, colors and styles. The next part you need is a Motherboard: ...
A very important computer component is the BIOS chip. BIOS stands for Basic Input Output System. In very simple terms, the BIOS chip wakes up the computer when you turn it on and reminds it what parts it has and what they do. The hard drive, is inside the computer because the disks are not meant to be removed.
WHAT
Why is this unit important?
