GCF Global Computer Basics

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What is a peripheral?

A device external to the main computer system

CPU stands for:

Central Processing Unit

What is the purpose of a heat sink?

Draw off excessive heat

If you decide to open the computer case/tower, make sure you _____ the computer first.

unplug

Give 3 examples of expansion cards:

video, sound, network

Tablets don't have physical keyboards, instead, they have a touch screen or _____ keyboard.

virtual

List 3 examples of software:

web browser, game, word processor

What is a server?

a specialized computer that provides more services to other computers or devices on a network

List 3 types of mobile devices:

tablet, e-reader, smartphone

What is the CPU?

the brain of the computer that carries out the commands

What is the motherboard?

the main circuit board of the computer

Give 3 examples of alphanumeric keys:

1, A, spacebar

Megahertz (MHz)

A million cycles per second

List 3 components found on the motherboard:

CPU, RAM, connectors

GUI stands for:

Graphical User Interface

The first widely sold personal computer with a GUI:

Macintosh

Gigahertz

One billion cycles per second

Personal computers come in 2 main styles:

PC and Mac

The more _____ you have, the more things your computer can do at the same time.

RAM

RAM stands for:

Random Access Memory

What is hardware?

The physical components of a computer system

What is a computer?

an electronic device that manipulates information or data

What is software?

any set of instructions that tells the hardware what to do

What are the 4 basic parts of a desktop computer?

case/tower, monitor, keyboard, mouse

What happens to your short-term memory when you turn off the computer?

data is lost

What happens to your long-term memory when you turn off the computer?

data is not lost

A processor's speed is measured in megahertz (Mhz) and _____.

gigahertz (Ghz)

The _____ is acts as long-term storage.

hard drive

The CPU is covered by:

heat sink & fan

List 3 examples of hardware:

keyboard, mouse, monitor

What is a portable, lightweight computer that is wireless, battery powered, and has a touchpad?

laptop

The _____ works with the video card to display images and text.

monitor

The case/tower contains these 3 main components:

motherboard, CPU, power supply

The _____ mouse uses an electronic eye to detect movement.

optical

The _____ unit in a case/tower converts the power from the wall outlet to the type of power needed by the computer.

power supply

List 4 examples of peripherals:

printer, scanner, speakers, mouse

RAM is your system's

short-term memory (volatile)

For many people, a _____ can replace their laptop, digital music player, and digital camera.

smartphone

List 4 examples of specialized computers:

smartphone, wearable, game console, TV

The faster the hard drive, the faster your computer can _____ and _____ .

start-up and load programs

What are 3 basic things a computer can do?

store, retrieve, & process data


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