ITC Exam 3

The ____ is a program that is used to start up the computer

BIOS

A program stored on a chip on the motherboard that is used to start up the computer

BIOS (basic input output system)

____ measure human characteristics such as fingerprints and eye retinas

Biometric scanners

The single layer ____ storage capacity is 25 GB

Blu-ray disc

____ is a short-range wireless technology that connects many types of peripheral devices to computers and mobile devices

Bluetooth

The ______ is considered to be the brain of the computer

CPU

The brain of a computer housed inside the system unit on the motherboard

CPU (central processing unit)

____ memory stores frequently accessed information close to the processor

Cache

Very fast memory that is used to store frequently accessed information close to the processor

Cache memory

____ is measured in billions of cycles per second

Clock speed

The CPU consists of the arithmetic logic unit and the ____

Control unit

A ____ projector has hundreds of thousands of tiny swiveling mirrors that create an image

DLP

____ hold the storage devices and openings for peripheral devices to connect to expansion cards on the motherboard

Drive bays

The ____ connects disk drives to the processor

Drive controller

The physical components of a computer

Hardware

A ____ projector passes light through a prism that divides the light into three beams

LCD

The four-part process used by the CPU to process each instruction: fetch, decode, execute, store. Also called the instruction cycle.

Machine cycle

The main circuit board of a computer that houses the processor (CPU), contains drive controllers and interfaces, expansion slots, data buses, ports and connectors, BIOS, and memory.

Motherboard

When the machine cycle performs the execute step, it is ____

Performing the requested instruction using the arithmetic logic unit

A ____ is a connection point that is used to attach peripheral devices to the motherboard

Port

The number of horizontal pixels by vertical pixels on a display screen or image, for example

Resolution

When the machine cycle performs the fetch step, it is ____

Retrieving the next instruction from the program stored in the computer's random access memory (RAM) located on the motherboard

An input device that increases the speed and accuracy of data entry and converts information into a digital format that can be saved, copied, and manipulated

Scanner

A non-mechanical storage format that stores data using flash memory on a chip

Solid-state storage

The ____ is the case the encloses and protects the power supply, motherboard, processor, and memory of a computer

System unit

The case that encloses and protects the power supply, motherboard, processor (CPU), and memory of a computer

System unit

The receipts you receive from gas pumps, ATMs, and many cash registers are printed by ____ printers

Thermal

___ signals from smooth, continuous waves, unlike square digital waves

analog

____ store data magnetically on metal platters

hard drives

A game controller and microphone are ____ devices for use with video games and simulations

input

A(n) ____ connects a computer to a telephone line for dial-up internet access

modem

The main circuit board of a computer is the ____

motherboard