The basic computer components such as CPUs, RAM, hard drive and monitor work differently and this is how they function. RAM is an acronym for random access memory, a use of computer memory that can be used randomly. Any byte of memory can be used, no need in touching the preceding bytes. (http://www.webopedia.com/TERM/R/RAM.html)A random-access memory device allows data items to be accessed read or written in almost the same amount of time irrespective of the physical location of data inside the memory. In contrast, with other direct-access data storage media such as hard disks, CD, and DVD.(https://en.wikipedia.org/wiki/Random-access_memory). Random Access Memory is the most common type of memory found in devices used everyday in computers and printers. For example a computer with 8MB has about 8 million bytes of memory the programs can use. (http://www.webopedia.com/TERM/R/RAM.html). A hard drive is a high capacity self contained storage device containing a read write mechanism plus one or more hard disks, inside a sealed unit. Also is called hard disk drive. On the back of a hard drive is a circuit board called the disk controller. The hard drive is a permanent storage but on a random access memory it is a temporary storage. This means that if computer shuts down the files remained are stored safely on the drive. That way when you turn computer on again the files will still be there.(www.computerhope.com).The CPU is an older term for processor and microprocessor. It stands for central processing unit, which is known as the central processor, but usually called processor. The Central Processing Unit is the brains of the computer where the majority calculations take place. The Central Processing Unit chip is mostly shaped as a square or a rectangle and has corner to help place the chip in the CPU socket.(www.computerhope.com)The term monitor is often used synonymously with computer screen or display. The monitor displays the computer’s user interface and open programs, allowing the user to interact with the computer, typically using the keyboard and mouse.(http://techterms.com/definition/monitor)There two types of monitors the LCD and CRT. A monitor that uses LCD technologies rather than the conventional CRT technologies used by most desktop monitors. Until recently, LCD panels were used exclusively on notebook computers and other portable devices. In 1997, however, several manufacturers began offering full-size LCD monitors as alternatives to CRT monitors. The main advantage of LCD displays is that they take up less desk space and are lighter. (http://www.webopedia.com/TERM/L/LCD_monitor.html).