COMPUTER MAIN PARTS

Present by : Juan José ForondaStudent of systems

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1.HARDWAREAny physical component of a computer system that contains a circuit board, ICs, or other electronics.

1.1 MONITORAlternatively referred to as a video display terminal (VDT) and video display unit (VDU), a monitor encompasses a display screen for video images and casing that holds it. In its most common usage, monitor refers only to devices that contain no electronic equipment other than what is essentially needed to display and adjust the characteristics of an image.

1.2 KEYBOARDA computer keyboard is one of the primary input devices used with a computer that looks similar to those found on electric typewriters, but with some additional keys. Keyboards allow the user to input letters, numbers, and other symbols into a computer that often function as commands. The following image shows a Saitek keyboard with indicators pointing to each of the major key sections of a keyboard.

1.3 MOUSEOriginally referred to as an X-Y Position Indicator for a Display System, a mouse is a hardware input device that was invented by Douglas Engelbart in 1963 while working at Xerox PARC. The mouse allows an individual to control a pointer in a graphical user interface (GUI) and manipulate on-screen objects such as icons, files, and folders.

1.4 PRINTERSA printer is an external hardware device responsible for taking computer data and generating a hard copy of that data. Printers are one of the most used peripherals on computers and are commonly used to print text, images, and photos.

1.5 RAM (RANDOM ACCESS MEMORY)Alternatively referred to as main memory, primary memory, or system memory, Random Access Memory (RAM) is a computer storage location that allows information to be stored and accessed quickly from random locations within DRAM on a memory module. Because information is accessed randomly instead of sequentially like it is on a CD or hard drive, the computer can access the data much faster. However, unlike ROM and the hard drive RAM is a volatile memory and requires power in order to keep the data accessible, if power is lost all data contained in memory lost.

1.6 CPU (CENTRAL PROCESSIG UNIT)

Alternatively referred to as the brain of the computer, processor, central processor, or microprocessor, the CPU (pronounced as C-P-U), short for Central Processing Unit, was first developed at Intel with the help of Ted Hoff in the early 1970's. The computer CPU is responsible for handling all instructions it receives from hardware and software running on the computer.

1.7 NETWORK INTERFACE CARD

Short for Network Interface Card, the NIC is also referred to as an Ethernet card and network adapter. It is an expansion card that enables a computer to connect to a network; such as a home network, or the Internet using an Ethernet cable with an RJ-45 connector.

1.8 MOTHERBOARD

The motherboard is a printed circuit board that is the foundation of a computer, located at the bottom of the computer case. It allocates power to the CPU, RAM, and all other computer hardware components. Most importantly, the motherboard allows hardware components to communicate with one another.

2. SOFTWARESoftware is a collection of instructions that enable the user to interact with a computer or have it perform specific tasks for them. Without software, computers would be useless.

SOFWARE EXAMPLES

2.1 Operating system

2.2 OFFICE

2.3 ANTIVIRUS