EDP101 Parts Of Computer System PDF

EDP101 PARTS OF COMPUTER SYSTEM CLASSIFICAION OF COMPUTERS BASIC COMPUTER ORGANIZATION PARTS OF COMPUTER SYSTEM PARTS OF COMPUTER SYSTEM Central processing unit (CPU)...

EDP101 PARTS OF COMPUTER SYSTEM CLASSIFICAION OF COMPUTERS BASIC COMPUTER ORGANIZATION PARTS OF COMPUTER SYSTEM PARTS OF COMPUTER SYSTEM Central processing unit (CPU) Motherboard Random Access Memory (RAM) Video graphics array port Power supply Cooling fan Scanner Hard drive Computer Mouse Monitor CENTRAL PROCESSING UNIT The CPU controls the computer processes and communicates with the other components of a personal computer. A computer's CPU may be one of the most complicated parts of the computer because of its intricacies. MOTHERBOARD The motherboard provides the structure for all other components and connects them, while also providing a way to distribute power, deliver information and connect to devices such as a printer or mouse. It controls how data transfers and what type of monitor or screen device to use, for example. It houses the CPU, memory and secondary storage devices such as hard drives. RANDOM ACCESS MEMORY (RAM)RAM is where data lives temporarily while it's being actively used by programs, such as when a user launches a computer application. A technician may know how to identify the type of RAM in a computer, how to replace it if it's defective and how to diagnose problems with copying data from one location in memory to another. VIDEO GRAPHICS ARRAY PORT A video graphics array (VGA) port is a video input that is primarily used on PC monitors. Troubleshooting a VGA port could include verifying there isn't a loose connection, faulty cable or a broken monitor. Another task a computer technician may do is use compressed air to spray inside the VGA port to ensure it's free of dust. POWER SUPPLY A power supply provides electricity to all components of a computer system. Typically, it's a power cord connected from the back of a PC tower into an electricity socket. A technician may troubleshoot the power supply by turning off the computer, unplugging and detaching the power supply cord or trying a new cord or outlet. COOLING FAN Cooling fans are a computer's system to decrease overheating. Many computers have more than one cooling fan to help users who run their computer heavily, such as video streaming or gaming. A computer technician may need to fix a computer's cooling fan if a user notices their computer overheating. HARD DRIVE Hard drives are data storage devices used to store files, programs or other information on a computer system. They use magnetically coated discs called hard disks that store digital representations of information. MONITOR A computer monitor is an electronic device that displays what's what programs are running on your computer so a user can see. Some computer technicians may wear anti-static gloves when handling computer monitors to avoid static electricity. SCANNER A scanner is a device that digitally copies an image or and makes it available as a file for access on a computer. If a scanner malfunctions, a computer technician may remove the cover and carefully check if it has any damage. COMPUTER MOUSE A computer mouse can have a wire or is wireless and is an input device used to control a cursor on the computer monitor. A wired computer mouse has a cord that connects to a USB port on a computer while a wireless mouse has no physical connection with a computer system. CLASSIFICATIONS OF COMPUTER SUPER COMPUTERS : The super computers are the most high performing system. A supercomputer is a computer with a high level of performance compared to a general-purpose computer. The actual Performance of a supercomputer is measured in FLOPS instead of MIPS. All of the world’s fastest 500 supercomputers run Linux- based operating systems. MAINFRAME COMPUTERS These are commonly called as big iron, they are usually used by big organisations for bulk data processing such as statistics, census data processing, transaction processing and are widely used as the servers as these systems has a higher processing capability as compared to the other classes of computers, most of these mainframe architectures were established in 1960s, the research and development worked continuously over the years and the mainframes of today are far more better than the earlier ones, in size, capacity and efficiency. Eg: IBM z Series, System z9 and System z10 servers. MINI COMPUTERS These computers came into the market in mid 1960s and were sold at a much cheaper price than the main frames, they were actually designed for control, instrumentation, human interaction, and communication switching as distinct from calculation and record keeping, later they became very popular for personal uses with evolution. MINI COMPUTERS These computers came into the market in mid 1960s and were sold at a much cheaper price than the main frames, they were actually designed for control, instrumentation, human interaction, and communication switching as distinct from calculation and record keeping, later they became very popular for personal uses with evolution. MICRO COMPUTERS A microcomputer is a small, relatively inexpensive computer with a microprocessor as its CPU. It includes a microprocessor, memory, and minimal I/O circuitry mounted on a single printed circuit board. The previous to these computers, mainframes and minicomputers, were comparatively much larger, hard to maintain and more expensive. BASIC COMPUTER ORGANIZATION BASIC COMPUTER ORGANIZATION The basic organization of a computer system is the processing unit, memory unit, and input-output devices. The processing unit controls all the functions of the computer system. It is the brain of the computer e.g. CPU. QUESTIONS AND ANSWERS THANK YOU