Computer Hardware Flashcards
(65 cards)
What is the motherboard?
The motherboard is the main component of a computer.
It is a large rectangular board with integrated circuitry that connects the other parts of the computer.
The motherboard is the communication center for input and output devices.
The motherboard also provides the connection point for fans, speakers, on/off switches, etc…
The motherboard provides a means for expanding and customizing the system by inserting expansion boards
The Motherboard is made up of small electrical paths called traces.
Many of these paths are grouped together to form a bus.
What does the motherboard include?
These include: Central Processing Unit (CPU), Random Access Memory (RAM), Hard drive, SATA and USB Ports.
Peripherals connected via the ports or the expansion slots.
What is a bus?
A bus is a collection of conductors that work together for a specific purpose
In computing, a bus is a communication pathway that allows data to be transferred between different components inside a computer, or between computers
What is the power supply and what does it do?
A power supply supplies power to all the components in a computer.
It regulates the voltage to an adequate amount.
The power supply is an integral part of any computer and must function correctly for the rest of the components to work.
What is RAM?
Random Access Memory
The RAM stores the programs and data that are being actively accessed by the CPU.
All programs get loaded into RAM. Reading data from the RAM is much faster than reading data from the hard drive.
More RAM equals faster computers.
Adding RAM can be more beneficial to your computer’s performance than upgrading the CPU.
The programs in RAM are usually erased and reloaded again and again.
What is volatile memory?
When the power is shut off the data in RAM is lost. We call this volatile memory.
a type of computer memory that loses its stored data when the power supply is interrupted
What is the video/graphics card?
A video card can be used to process the graphics portion of the processing load.
The video card can help almost any program run more efficiently.
Video cards are typically installed in either the PCI or AGP slots.
What is the hard disk drive?
A hard disk drive is a data storage device used for storing and retrieving digital information.
All files and folders are physically located on the drive.
Data is read in a random-access manner, meaning individual blocks of data can be stored or retrieved in any order rather than sequentially.
Retains its data even when powered off.
Never open it
Mechanical hard drive
Solid state hard drives are newer than mechanical hard drives are newer and better
What is the flash memory card reader?
A memory card reader is a device for accessing the data on a memory card.
Multi card readers do not have built-in memory capacity, but are able to accept multiple types and styles of memory cards.
What is the DVD Drive?
DVD - Digital Versatile Disc.
4.7GB storage capacity.
Formatted for video playback while other DVDs contain applications.
DVDs are also used to distribute software programs.
Accesses data stored on CDs or DVDS
Same size as a CD but has more storage
Some are formatted for video playback, while others contains applications
DVDs are also used to distribute software programs
Writable DVD provide a way to archive large amounts of data
Most computers do not have a DVD drive anymore
They can store 1.4 megabytes (very little)
No longer used
What are expansion cards?
The [expansion card] in computing is a printed circuit board that can be inserted into an expansion slot of a computer motherboard to add functionality to a computer system via the expansion bus
Adds functionality to a computer system
What is the CPU (Central Processing Unit)?
Performs the calculations and does the comparisons needed for processing, as well as controls the other parts of the computer system
Performs all the processing
The CUP is he primary component of a computer that processes instructions
Runs the operating system and all applications
Receives input from the user and/or active programs that are running
The CPU process data and produces output
Contains billions of really tiny transistors that are going off at extremely fast speeds
This causes it to heat up, which is why there is a fan above it
What is the CPU made up of?
ALU (Arithmetic Logic Unit)
Control Unit
Prefetch Unit
Decode Unit
Registers
Bus Interface Unit
What is CPU speed measured in?
CPU speeds are measured in Gigahertz or Megahertz
Megahertz is equal to 1 million operations per second
Gigahertz is equal to 1 billion operations per second
Same CPU different speed
What is the fan?
Cools the CPU
What are drive bays?
Hold storage devices, such as the DVD and hard drives shown here
What are USB ports
Connect USB devices to the computer
What are memory slots
Connect memory modules to the motherboard
What are Memory (RAM) modules?
Store data temporarily while you are working with it
What is the system unit of a computer?
the main physical enclosure that houses the core components responsible for processing and storing information. It’s essentially the “brain” of the computer and contains elements like the motherboard, CPU, RAM, and storage drives.
Can come in different Sizes
The size is determined by the Form Factor of the motherboard.
E.g. Most desktop computers use the ATX (Advanced Technology Extended) form factor.
What is ATX?
ATX was developed by INTEL in 1995.
ATX is necessary for standardization and interchangeability of parts.
ATX cases come in a variety of shapes and sizes although the size for the mounting of the motherboard is the same.
All cases come with a set of wires that connect to ports on the case.
What are the different bus types?
Data Bus
Control bus
Memory Bus
Internal bus
I/O Bus
Address Bus
Power Bus
What is the data bus? What is bus width?
The data bus is used to move data between components.
The data is moved between components grouped as 8, 16, 32, or 64 bits.
The amount of data that can be moved at one time is called the bus width
What is the control bus?
The control bus delivers command signals from the processor to devices.