Computer Hardware Flashcards

(65 cards)

1
Q

What is the motherboard?

A

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.

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2
Q

What does the motherboard include?

A

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.

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3
Q

What is a bus?

A

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

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4
Q

What is the power supply and what does it do?

A

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.

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5
Q

What is RAM?

A

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.

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6
Q

What is volatile memory?

A

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

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7
Q

What is the video/graphics card?

A

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.

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8
Q

What is the hard disk drive?

A

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

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9
Q

What is the flash memory card reader?

A

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.

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10
Q

What is the DVD Drive?

A

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

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11
Q

What are expansion cards?

A

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

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12
Q

What is the CPU (Central Processing Unit)?

A

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

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13
Q

What is the CPU made up of?

A

ALU (Arithmetic Logic Unit)
Control Unit
Prefetch Unit
Decode Unit
Registers
Bus Interface Unit

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14
Q

What is CPU speed measured in?

A

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

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15
Q

What is the fan?

A

Cools the CPU

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16
Q

What are drive bays?

A

Hold storage devices, such as the DVD and hard drives shown here

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17
Q

What are USB ports

A

Connect USB devices to the computer

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18
Q

What are memory slots

A

Connect memory modules to the motherboard

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19
Q

What are Memory (RAM) modules?

A

Store data temporarily while you are working with it

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20
Q

What is the system unit of a computer?

A

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.

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21
Q

What is ATX?

A

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.

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22
Q

What are the different bus types?

A

Data Bus
Control bus
Memory Bus
Internal bus
I/O Bus
Address Bus
Power Bus

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23
Q

What is the data bus? What is bus width?

A

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

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24
Q

What is the control bus?

A

The control bus delivers command signals from the processor to devices.

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25
What is the memory bus?
The memory bus connects the processor to the memory. Also known as the FSB (Front Side Bus).
26
What is the internal bus?
A bus that operates only within the internal circuitry of the CPU, communicating among the internal caches of memory that are part of the CPU chip's design. An internal bus in a computer is a system of pathways that allows communication and data transfer between the computer's internal components, such as the CPU, memory, and internal storage.
27
What is the Input/Output Bus?
A bus that connects the processor to expansion slots.
28
What is the address bus?
A bus system that connects the CPU with the main memory module. It identifies memory locations where data is to be stored or retrieved.
29
What is the power bus?
A bus system that sends electrical power to small consumption devices, such as speakers, lights, and switches.
30
What is the chipset?
Handles data manipulation that would otherwise need to be performed by the CPU. Chipsets also handle such things as connecting motherboard buses together that run at different speeds. Chipsets also connect ports of various speeds, such as USB and Firewire. A chipset is a collection of electronic components on a motherboard that manages the data flow between the CPU, GPU, RAM, storage, and peripherals. It acts as the traffic controller of the motherboard, facilitating communication between all connected components
31
What is the chipset divded into?
north bridge and south bridge
32
What is the north bridge?
A north bridge: The northbridge is directly connected to the CPU through the front side bus. This portion of the chipset controls higher data speed systems such as graphics, DVD hardware, and CPU overclocking functions.
33
What is the south bridge?
A south bridge: The portion of the chipset that controls the slower devices associated with the PCI (Peripheral Component Interconnect) and ISA (Industry Standard Architecture) buses. The southbridge chipset on a motherboard handles the computer's input/output (I/O) functions, acting as a bridge between the CPU and other peripheral devices
34
What is the ROM chip?
ROM (Read only memory) chip that contains a group of software programs (BIOS).
35
What is the CMOS?
CMOS is a form of technology used in the design of a computer's memory chip that saves crucial configuration data Complementary metal– oxide–semiconductor (CMOS). The CMOS memory contains user information about how the computer should be turned on. Handlers and Drivers Power on Self Test (POST) Looks for Boot Devices
36
What is the POST? What happens in the event of a warm or cold boot?
POwer on self test The POST is a simple diagnostic program that is initiated when the computer is turned on. It verifies that all the major computer components are properly installed and in working order. The POST is a series of individual functions or routines that perform various tests on the computer’s hardware. Video ROM is tested and initialized The BIOS will continue scanning for ROMs that may be installed on the computer Next… the BIOS checks if the system is booting from a cold boot or a warm boot. In the event of a warm boot, the BIOS will skip the POST routines remaining. If a cold boot is indicated, the remaining POST routines will be executed.
37
What are expansion slots PCI ((peripheral components interface)
Used for attaching hardware devices to a computer. A bus system featuring a 32-bit data bus that provides a high speed bus structure. e.g. TV/Tuner Card, network cards, sound cards, modems, extra USB ports
38
What are expansion slots PCI Express?
Designed to replace PCI and AGP (Accelerated Graphics Port) and is available in several different formats: x1, x2, x4, x8, x12, x16 and x32. an expansion card that connects to a computer's motherboard using a PCIe slot.
39
What is the USB?
Universal serial bus A bus system designed to replace the function of expansion slots. The USB is accessed by plugging a USB device into the bus at a port opening on the case. Up to 127 devices can be connected to the bus. Connect electronic equipment to devices. It allows data to transfer and delivers electric power between different devices. Its name basically shows how the sport simplifies connections between computers and peripherals. Computer keyboards, video cameras, printers, portable media players, telephones, disk drives, network adapters
40
What is SATA?
SATA stands for Serial Advanced Technology Attachment and is a computer bus interface that connects host bus adapters to storage devices like hard drives and SSDs. A bus used to connect storage devices such as internal hard drives. offering several advantages over the older parallel interface: Reduced cable size and cost. Native hot swapping. Faster data transfer through higher signaling rates. More efficient transfer through a queuing protocol.
41
What is a parallel port?
This component transfers multiple bits of data simultaneously and essentially connects various peripherals. It is normally found in older computers that allow it to connect different devices with one another for data transfer like when printing or just simple communications the PC and outwards. Printers, scanners, external drives like ZIP drives
42
What is a VGA port?
Video Graphics Array Its main function is to connect video output devices to computers and projectors to display to monitors and TVs. It is mostly known as the standard component that displays graphics such as videos and photos on computer screens. Monitors, projectors, TVs, video generating devices that require the need to display graphics
43
What is RJ-45?
Registered jack 45 Connects devices to a network and facilitates data transmission between devices over Ethernet cables to essentially enable communication and data sharing. Commonly used for networking and telecommunications Computers, network switches, routers, any devices that uses physical ethernet connections
44
What is a serial port?
Mainly responsible for transferring data one bit at a time over a single wire. Transmits data between devices but it's only difference in its function is that the transmission of data happens in serial form, using separate data paths Modems, printers, barcode scanners, GPS receivers, medical equipment for the main purpose of communication
45
What is the green audio port?
Used for outputting audio through the transmission of audio signals from the computers to other audio devices like speakers or headphones. Known as headphones output port where the audio comes out of the way where external audio devices are connected
46
What is the pink/blue port?
Pink atcs as the microphone input and record sounds with a microphone Blue is the line input that is used for connecting devices that output audio such as CD player or another computer. Also connects any additional audio equipment
47
What are examples of tech that use audio ports?
Computers, sound cards, portable audio players, digital cameras, camcorder, headphones, speakers, amplifies, microphones use these pots as input devices to connect and transmit signals
48
What are operating systems?
An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs. A collection of programs that manage and coordinate the activities taking place within the computer. The OS is the intermediary between the user and the hardware.
49
What are the jobs of the operating systems?
Manages and monitors resources and jobs Interfaces with Users… GUI (graphical user interface) Configures devices Manages all files Manages Security
50
What does the OS do with the computer's resources? What are scheduling routines?
The OS continuously manages your computer’s resources (such as software, disk space, and memory). The OS schedules jobs (such as documents to be printed or files to be retrieved from a hard drive). Scheduling Routines refers to the order in which jobs are carried out, as well as which commands get executed first
51
What does the OS do with user instructions?
The OS translates user instructions into a form the computer can understand. The OS also translates any feedback from hardware— such as a signal that the printer has run out of paper.
52
What is a user interface?
User Interface: The means by which an operating system or any other program interacts with the user. Most operating systems use a graphical user interface (GUI).
53
What does OS do to devices connected to the computer?
The OS configures all devices connected to a computer. Device drivers (or simply drivers) are used to communicate with peripheral devices. Most modern OS look for and recognize new devices each time the computer boots.
54
What is plug and play?
Plug and Play: When an operating system installs a the appropriate driver automatically Plug and play (PnP) in computing means you can connect a new device to a computer and use it immediately without needing to install drivers or configure anything manually.
55
What is file managment?
File Management: keeping track of the files stored on a computer so that they can be retrieved when needed. ONE can organize the files on a storage medium into folders to simplify file management. One may create additional folders, as desired, to keep their files organized. Folders can contain both files and other folders (called subfolders).
56
What is the security within the OS?
The operating system can use passwords, biometric characteristics (such as fingerprints) to limit access to the system. The OS can use an integrated firewall to protect against unauthorized access via the Internet or an option to download and install security patches. Passwords can also be used to ensure that administrative level operating system tasks (such as installing programs or changing system settings).
57
What is Windows?
Holds 90% of the market. Windows 1.0 in 1985 Windows 3, 3.1, 3.11 (Operating environments for DOS) Windows 95 Windows NT Windows Me Windows 2000 Windows XP Windows Vista Windows 7 Windows 8 Windows 10 foundation of most personal PCs
58
What is Mac OS?
Proprietary OS for Apple corporation. Based on the UNIX operating system that was developed in the 1970s. Uses the same structure as UNIX. Apple created first GUI (Graphical User Interface) Many OS followed Apples trend for creating a GUI. Apple created first user interface in 1984
59
What is Linux?
Developed by Linus Torvalds in 1991 when he was a student at the University of Helsinki in Finland. Resembles UNIX but developed completely independently from the ground up. Linux was released as Open Source to the public... anyone can see the code... some allow you to modify, customize and improve it. Linux began in the command line but now has GUI.
60
What is a boot sequence?
A boot sequence is the step- by-step process of bringing a computer to an operational state. When a boot sequence is initiated, it is called booting the computer. A boot sequence, also known as the boot process, is the order of steps a computer system follows when it's turned on or restarted
61
What is a cold boot?
A cold boot , or hard boot, is when an electrical power switch is used to turn the computer on.
62
What is a warm boot?
A warm boot, or soft boot, is used to restart a computer that is already running.
63
What is the BIOS?
The Basic Input Output System (BIOS) is a ROM chip on the motherboard that contains initial boot up instructions. The BIOS contains instructions needed to interact with the computer screen, keyboard, mouse, hard drive, and several other basic hardware components. The interrupt handlers tell the processor when the keyboard or other user input device gives a signal. Interrupts usually take priority above other processes, so it is “interrupting” the processes. The BIOS looks for bootable devices once it has ensured that all devices are functional. The most common bootable device is the hard drive because that is where the operating system is usually stored, however it is also possible to store a bootable system on removable media. The operating system loads and takes over the computer once the BIOS finds it on the hard drive or removable media.
64
What are peripherals?
Peripherals in computers are external devices that connect to the computer to expand its functionality or add new capabilities.
65
What is a driver?
a driver is a software program that enables an operating system or other applications to communicate with and control a specific hardware device. It essentially acts as a translator, allowing the software to interact with the hardware without needing to know its specific technical details.