Computer Hardware!!

By Gemma Chorlton!!


A machine that reads data from and writes data onto a disk. A disk drive rotates the disk very fast and has one or more heads that read and write data.

There are different types of disk drives for different types of disks. For example, a hard disk drive(HDD) reads and writes hard drives, and a floppy drive(FDD) accesses floppy disks. A magnetic disk drive reads magnetic disks, and an optical drive reads optical disk.

Disk drives can be either internal (housed within the computer) or external(housed in a separate box that connects to the computer).


The monitor is the computer’s screen or display. Monitors come in sizes from 14 inch, 17 inch, to as large as Gateway’s 36 inch monitor.


CPU stands for CentralProcessing Unit, and is normally described as the brain of the computer. Any task you do on a computer has to go through the CPU. It processes what you want and then give you the results.

For ecxample, if i type a letter on the keyboard, the CPU proceses which key i pressed and then types the letter on the screen.


Random-access memory (RAM) is a form of compter data storage. A random-access device allows stored data to be accessed in very nearly the same amount of time for any storage location, so data can be accessed quickly in any random order. In contrast, other data storage media such as hard disks, CDs, DVDs and magnetic tape, as well as early primary memory types such as drum memory, read and write data only in a predetermined order, consecutively, because of mechanical design limitations


Read-only memory (ROM) is a class of storage medium used in computers and other electronic devices. Data stored in ROM cannot be modified, or can be modified only slowly or with difficulty, so it is mainly used to distribute firmware (software that is very closely tied to specific hardware, and unlikely to need frequent updates).


The motherboard is the main circuit board of your computer and is also known as the mainboard or logic board. If you ever open your computer, the biggest piece of silicon you see is the motherboard. Attached to the motherboard, you'll find the CPU, ROM, memory RAM expansion slots, PCI slots, and USBports. It also includes controllers for devices like the hard drive, DVD drive, keyboard, and mouse. Basically, the motherboard is what makes everything in your computer work together


Input is what goes into something and output is what you get out. In terms of computing, data going in is input and data that comes out is output. When you type something on your keyboard, you are sending input to your computer. It responds by displaying what you type on your monitor. That is output. Movements and clicks with your mouse are the same. They are inputs. You see the pointer move on your screen, which is output. When you print something or if you are playing music on your computer, that is output. Installing software can be input, or copying files onto your computer from a disc, a USB key, a digital camera etc. can also be input.

Touch Screen

A touch screen means you do not need to use a mouse with a computer. You simply move your finger across the screen and the mouse pointer moves with it. To mouse click, then you tap on the screen instead. You don't even need a keyboard with many systems, as a software keyboard can be displayed on screen when a user needs to type in information. Many touch screens also come with hand writing recognition software so that your on screen writing can be converted to text.