Lesson 1: Computers And Computer Systems

Front 1

arithmetic/logic unit (ALU)

Back 1

the part of central processing unit that performs arithmetic computations and logical operations

Front 2

central orocessing unit (CPU)

Back 2

also known as the micro- processor; the brains of the computer

Front 3

circuit board

Back 3

a thin plate or board the contains electronic components

Front 4

computer

Back 4

electronic device that receives, processes, and stores data and produces a result

Front 5

control unit

Back 5

the part of a central processing unit that controls the flow of information through the processor

Front 6

data

Back 6

information entered into the computer to be processed that consists of text, numbers, sounds, and images

Front 7

hard disk

Back 7

a storage data unit inside a computer that can store a large quantity of data (60 GB or more), but cannot easily be removed from the computer

Front 8

hardware

Back 8

the tangible, physical equipment that can be seen or touched

Front 9

information

Back 9

the output produced by a computer after it processes the data

Front 10

memory

Back 10

where data is stored on the computers motherboard

Front 11

mobile devices

Back 11

electronic devices that fit into the palm of your hand, such as personal digital assistants (PDA’s), calculators, smart phones and other cell phones, electronic organizers, and handheld games

Front 12

motherboard

Back 12

a circuit board that contains all of the computer system’s main components

Front 13

notebook computers

Back 13

similar to a microcomputer; however, it is smaller and portable

Front 14

random access memory (RAM)

Back 14

computer location where instructions and data are stored on a temporary base. This memory is volatile.

Front 15

read-only memory (ROM)

Back 15

permanent storage; instructions are burned onto chips, but they won’t be able to make change to the document

Front 16

server

Back 16

a computer that handles requests for data, e-mail, file transfers and other network services from other computers clients

Front 17

software

Back 17

intangible set of instructions that tells the computer what to do

Front 18

supercomputer

Back 18

largest and fastest computers, capable of storing and processing tremendous volumes of data

Front 19

tablet PC

Back 19

a personal computer similar in size and thickness to a notepad on which you can take notes using a small stylus or a digital pen on a touch screen

Front 20

USB flashdrive

Back 20

a small removable data storage device