Computers

Today we cannot imagine our life without computers . We use them everywhere . Computers and networks can provide access to resources , as well as the ability to communicate with other users worldwide . Such open access is a privilege , and requires that individual users act responsibly . Computers are made of the following basic components : Case with hardware inside : Power Supply - It comes with the case , but this component is mentioned separately since there are various types of power supplies . Motherboard - This is where the core components of your computer also the support cards for

video , sound , networking and more are mounted into this board . Microprocessor - This is the brain of your computer . It performs commands and instructions and controls the operation of the computer . Memory - The RAM in your system is mounted on the motherboard . This is memory that must be powered on to retain its contents . Drive controllers - The drive controllers control the interface of your system to your hard drives . The controllers let your hard drives work by controlling their operation . Hard disk drive (s ) - This is where your files are permanently stored on your computer . Also normally , your operating system is installed here . CD-ROM drive (s ) - This is normally a read only drive where files are permanently stored Floppy drive (s ) - A floppy is a small disk storage device that today typically has about 1 .4 Megabytes of memory capacity . Other possible file storage devices include DVD devices , Tape backup devices , and some others . Monitor - This device which operates like a TV set lets the user see how the computer is responding to their commands . Keyboard - This is where the user enters text commands into the computer . Mouse - A point and click interface for entering commands which works well in graphical environments . Using computers in health care can improve the quality and effectiveness of care and reduce its cost . However , adoption of computerized clinical information systems in health care lags behind use of computers in most other sectors of the economy . Automated hospital information systems can help improve quality of care because of their far-reaching capabilities . For complex problems , computer workstations can integrate patient records , research plans , and knowledge databases The lives of patients can be improved if they use computer systems to obtain information , make difficult decisions , and contact experts and support groups

Computers...