The document discusses several common computer components: the CPU, which processes data and performs calculations; the hard drive, which stores and retrieves files using a rotating magnetic disk; the power supply, which converts AC to DC power to run the other components; RAM and ROM for temporary and permanent memory storage; and the motherboard, which connects the other components and contains the CPU, memory, and BIOS.

1. Common Computer
Components

2. CPU
 This processes data that is received, and comes
out with an outcome.
 For example, if 2 + 2 was put in, it would come
out with 4.
 The speed of a CPU is measured in Mega hurtz.
 Without it, the computer will be limited to
almost nothing, coming up with an error on the
screen.

3. Hard Drive
 This stores and retrieves computer data and
files.
 Constructed with a large rotating disk, with a
magnetic rod that writes data to it.
 Without it, you cannot access or save files.

4. Power Supply
 This supplies power to different parts of a
computer through it’s different cables (to
motherboard, hard drive, optical drive etc.).
 The box though, is to convert alternating current
to direct current.
 Without it, the computer would just not be able to
turn on

5. RAM/ROM
 ROM is memory that cannot be edited or
modified, it can only be read. It can be taken out
and put back in a computer.
 RAM is memory that can be edited and modified,
and is accessed randomly. Unlike ROM, It can’t be
taken out and put back in a computer.

6. Motherboard
 Not specifically a component, but more like the main
circuit board for the computer, connecting different
devices together.
 It holds the CPU, adapter cards, BIOS, RAM and
ROM.