# data[].attributes.body
The main part of a microcomputer, sometimes called the chassis. It includes the following parts: Motherboard, Microprocessor, Memory Chips, Buses, Ports, Expansion Slots and Cards.

# data[].attributes.body
The main circuit board of a computer. It contains all the circuits and components that run the computer.

# data[].attributes.body
The processor is the main “brain” or “heart” of a computer system.  It performs all of the instructions and calculations that are needed and manages the flow of information through a computer.

# data[].attributes.body
(internal storage, main memory or memory) is the computer's working storage space that holds data, instructions for processing and processed data (information) waiting to be sent to secondary storage. Physically, primary storage is a collection of RAM chips.
Two (2) Types of Memory
a. ROM – (Read Only Memory) ROM is non-volatile, meaning it holds data even when the power is ON or OFF.
b. RAM – (Random Access Memory) RAM is volatile, meaning it holds data only when the power is on. When the power is off, RAM's contents are lost.

# data[].attributes.body
A bus is a data pathway between several hardware components inside or outside a computer. It does not only connect the parts of the CPU to each other, but also links the CPU with other important hardware.

# data[].attributes.body
Printed-circuit boards (also called interface cards) that enable the computer to use a peripheral device for which it does not have the necessary connections or circuit boards. They are often used to permit upgrading to a new different hardware.

# data[].attributes.body
Installed in the back corner of the PC case, next to the motherboard. It converts 220 AC (standard house power) into DC voltages that are used by other components in the PC.

# data[].attributes.body
Also known as hard drive, is a magnetic storage device that is installed inside the computer. The hard drive is used as permanent storage for data. In a Windows computer, the hard drive is usually configured as the C: drive and contains the operating system and applications.

# data[].attributes.body
An optical drive is a storage device that uses lasers to read data on the optical media. There are three types of optical drives: Compact Disc (CD), Digital Versatile Disc (DVD) and Blu-ray Disc (BD).

# data[].attributes.attachment_caption
Hard Disk, CD, DVD, Blue-ray Disc and Pen Drive | Computer Knowledge Class 2

# data[].attributes.body
Designed to optically access data stored on a DVD. A laser moves back and forth near the disk surface and accesses data at a very fast rate.

# data[].attributes.attachment_link.title
Hard Disk, CD, DVD, Blue-ray Disc and Pen Drive | Computer Knowledge Class 2