CIS Chaper 4
Terms in this set (74)
Refers to the phyiscal componets of a computer.
(Central Processing Unit) Brain of the computer. Housed inside the system unit of the motherboard. has two parts: the arithmetic logic unit (ALU) and control unit
(Arithmetic Logic Unit) Preforms addition and subtraction and logical calculations.
Manages the movement of data through the CPU.
Also known as the "fetch and exucute" or the "machine cycle"
The instructions are retreived from the main memory.
The contril unit translates the instructions into a computer demand.
The ALU processes the command.
The results are written back to the memory.
Speed at which the processer executes the cycles.
Billions of cycles per second
Uses multiple processors to divide up the work.
Used by a single processor.
Multi Core Processor
Consisting of two or more processors that are integrated on a single chip.
The case that encloses and protects the power supply, the motherboard.
The main circuit of a computer.
Plug directly into expansion slots on the motherboard and allows you to connect additional devices into the computer.
anything connected by a cord
(Peripheral Component Interconnect) A slot on the motherboard.
Video cards and other devices use this slot.
(Accelerated Graphic Port) Systems that were manufactured before 2009 used this for video.
Provides a drive interface. Connects to the SATA.
(Serial ATA) Has become the standard internal drive interface.
(Enhanced Integrated Drive Electronics) A interface that is still found on older computers.
Information that flows between the components of the computer over wires on the motherboard.
Serial and Parallel Ports
Legacy ports that aren't typically found on modern computers.
Used to connect a keyboard and mouse. They have been replaced by USB.
(Universal Serial Bus) A standard port type that is used to connect many kinds of devices including printers, mice and keyboards.
A device that expands a single USB port into several so that there are more ports available to connect devices to a host system.
Meaning they can be plugged and unplugged without turning off the computer.
Also known as IEEE 1394. It was originally released by Apple in 1995.
A short range wireless technology that is used to connect many types of peripheral devices.
(Basic Input Output System) A program stored on a chip on the motherboard that is used to start up the computer.
(Read-Only Memory) a nonvolatile form of memory that doesn't need power to keep data.
(Complementary Metal Oxide Semiconductor) A ship that is also on the motherboard.
A temporary storage that is used by the computer to hold instructions and data.
(Random Access Memory) The operating systems, programs and data the computer is currently using are stored in RAM.
A small amount of very fast memory that is used to store frequently accessed information close to the processor.
Form of removable storage and includes CDs, DVDs and Blu-Ray discs.
(Compact Disc) The oldest type of optical disc in use today and has a storage capacity of 700 MB.
An optical disc with about five times the capacity of a DVD, which was designed to replace the single-layer disc.
(Digital Video Disc or Digital Versatile Disc) Has the same dimensions as a CD but stores more than 6 times as much data.
Unlike a optical storage it is not mechanical.
The data is stored on a chip.
Durable and often used in small electronic devices. Such as media players.
Small, portable, solid-state drives that can hold up to 128 GB of information.
Storage digital video games and other games with this.
A type of input.
A small keyboard that doesn't contains all the alphabet keys.
Includes one or more buttons and a scroll wheel and works by moving across a smooth surface.
Detects your finger moving across the touch screen surface.
Can accept input from a finger.
a special pen that is used on touch screens.
Specialized video cameras that provide visual input for online communication such as web conferencing or chatting.
Increases the speed and accuracy of data entry and converts information into a digital format that can be saved, copied and manipulated.
QR(Quick Response) Code Readers
Bar code readers on cell phones have turned shopping stores into an interactive activity.
Contains a tiny antenna for receiving and sending a radio frequency signal.
Measures human characteristics such as fingerprints and eye retinas.
Converts sound into digital signals and are used simply to chat in real time or as part of voice recognition applications used in video games.
Provides a way to interact with video games.
Mounted on a base and consist of a stick, buttons and sometimes a trigger.
Work by lighting up pixels on the screen.
Short for picture elements.
Use a cathode ray tube to excite phosphor particles coating the glass TV screens to light up the pixels.
Old technology that is still used alongside its more modern replacement, typically because it still works and is cost-effective.
(Liquid Crystal Display) Panels are found on most desktop and notebook computers.
Work by passing an electric current through gas sealed in thousands of cells inside the screen.
(Organic Light-Emitting Diode) Composed of extremely thin panels of organic molecules sandwiched between two electrodes.
More practical than monitors because they produce larger output.
(Digital Light-Projectors) Have hundreds of thousands of tiny swiveling mirrors that are used to create an image.
Pass light through a prism.
Also called a "graphic accelerator". Data signal and connection of a monitor are provided by this.
Convert digital signals into sound.
Provides audio connections for both input and output devices.