desktop personal computers
electronic components and most storage devices are part of the system unit and other devices, such as the keyboard, mouse, and monitor, normally occupy space outside the system unit.
aka cases of system unit, made of metal or plastic and protects internal electronic components used to process data
small piece of semi-conducting material, usually silicon, on which integrated circuits are etched.
is etched on a computer chip, contains many microscopic pathways capable of carrying electrical current
is contained on an integrated circuit, can act as an electronic switch that opens or closes the circuit for electrical charges
some comp and chip manufacturers use this term to refer to personal computer processor chip
component of the processor that directs and coordinates most of the operations in the computer.
processor begins fetching a second instruction before it completes the machine cycle for the first instruction
small high speed storage locations in a processor that temporarily hold data and instructions
small quartz crystal circuit processor relies on to control timing of all comp operations
AMD is the leading manufacturer of ____-compatible processors, which have an internal design similar to Intel processors, perform the same functions, can be as powerful, but often are less expensive.
system on a chip
integrates the functions of a processor, memory, and a video card on a single chip.
a small ceramic or metal component with fins on its surface that absorbs and disperses heat produced by electrical components such as a processor.
liquid cooling technology
uses a continuous flow of fluid(s), such as water and glycol, in a process that transfers the heated fluid away from the processor
consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processed data (information).
small circuit board where RAM chips usually reside, being inserted into the motherboard.
a type of memory module where the pins on opposite sides of circuit board dont connect and thus form 2 sets of contacts
Double Data Rate SDRAM (DDR SDRAM) chips are even faster than SDRAM chips because they
transfer data twice for each clock cycle
Rambus DRAM (RDRAM) chips are another type of DRAM chips that are much faster than SDRAM chips because they
use pipeline techniques
SIMM (single inline memory module)
has pins on opposite sides of the circuit board that connect together to form one set of contacts
Current processors include advanced transfer cache, a type of ____ built directly on a processor chip
ROM chips that contain permanently written data, instructions, or information that is recorded when the chip is manufactured
type of nonvolatile memory that can be erased electronically and reprogrammed, similar to EEPROM
a circuit board that enhances functions of a component of the system unit and/or provides connections to peripherals
plug and play
supported by many of todays comps where the computer automatically can configure adapter cards like the one in the accompanying figure and other peripherals as users install them
such as a keyboard or printer, is a device that connects to the system unit and is controlled by the processor in the computer
converts computer output into a video signal that travels through a cable to the monitor, which displays an image on the screen
a special type of expansion slot that notebook and other mobile comps have at least one of
next generation of PC cards. a removable flash memory device about one-half the size of a PC Card that adds memory, communications, and multimedia capabilities to mobile computers.
removable device that allows users to transfer data and information conveniently from mobile devices to their desktop computers
USB flash drive
flash memory device that plugs in a port like the one shown in the accompanying figure on a computer or portable device
A(n) ____ drive like that in the accompanying figure fits into a port that is itself an interface that can connect up to 127 different peripherals together with a single connector.
device that plugs in a USB port on the system unit like the one in the accompanying figure and contains multiple USB ports in which users plug cables from USB devices.
device that plugs in a FireWire port on the system unit like the one in the accompanying figure and contains multiple FireWire ports in which users plug cables from FireWire devices.
blue tooth technology
an alternative to IrDA that uses radio waves to transmit data between two devices
A special type of serial port that connects the system unit to a musical instrument, such as an electronic keyboard
a special high-speed parallel port that allows users to attach peripherals such as disk drives and printers
For a wireless device to transmit signals via infrared light waves, both the computer and the device must have one of these
Within the circuitry of a computer, each channel along which bits transfer, called a(n) ____, allows the various devices both inside and attached to the system unit to communicate with each other
The wider the bus...
the fewer the number of transfer steps required and the faster the transfer of data
Accelerated Graphics Port (AGP)
a bus designed to improve the speed with which 3-D graphics and video transmit
USB (universal serial bus) and FireWire bus
buses that eliminate the need to install cards in expansion slots
component of the system unit that converts the wall outlet AC power into the DC power a computer requires
Some external peripherals such as an external modem, speakers, or a tape drive have an AC ____, which is an external power supply
Preventive maintenance of your computer requires a few basic products, including
lint-free antistatic wipes and swabs, antistatic wristband, screen cleaning solution