Basic concepts of hardware Flashcards
What is a special case for a computer case called?
Mods
What is the function of the motherboard?
To connect peripherals and allow parts of the computer to communicate with each other
What is a CPU and what does it do and where does it plug into
The Central Processing unit does all the processing, plugged into ZIF socket on motherboard
Why does a CPU need a fan?
It gets hot when a computer is on and heat damages the CPU
What brands manufacture CPU’s in computers?
Intel and AMD
What brands manufacture CPU’s in tablets/smartphones?
Qualcomm, Apple and Arm
What are the characteristics of RAM?
Volatile (loses info when no power), its where the CPU keeps instructions its working on, data transfer is quick as its electronic, expensive
What is a DIMM?
Dual inline memory module
How does a magnetic HDD work?
The drives are solid disks coated with a magnetic substance. They have a read-write head that can write patterns in the form of 0’s and 1’s or can read patterns from the the disk
How are HDD’s becoming more efficient?
By improving the density of data on the surface of the disk
What is optical storage?
Optical drives use discs that hold data by reflecting laser light in different ways to represent 0’s and 1’s
What are the qualities of a ODD
Slower than HDD, limited storage capacity (700mb CD, 4,7-9gb DVD, 50gb Blu-ray)
How does a SSD work?
By using electronic memory that retains its data when the power is off.
What are the qualities of a SSD?
Expensive, small capacity
What is the function of a peripheral?
Gives computer equipment needed to get input and output