Chapter 3 Lessons 1, 2, and 3

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1

Storage Device

a computer component that retains data even after the power is turned off.

2

File

a unit or grouping information that has given a unique name.

3

Basic Input/Output System (BIOS)

a set of programs, built into a PC’s ROM chips, that controls the function of the computer’s keyboard, disk drives, monitor, and several other components; the programs also help the computer start itself when the power is turned on.

4

Memory

specialized chips, connected to the computer’s motherboard, which store data and programs as they are being used by the processor.

5

Primary Storage

memory chips that are built into a computer, such as random access memory.

6

Secondary Storage

computer disk drives such as the hard drives and CD-ROM drive used to store large amounts of data.

7

Archival Storage

a storage device for information that is not frequently used.

8

Read-only Device

a storage device that allows users to access information but not save or change it.

9

Read-write Device

a storage device that allows users to access information and save it to the device.

10

Sequential Storage Device

a storage device that requires a computer to scan from the beginning to the end of stored information.

11

Random Access Storage Device

a storage device that lets a computer go directly to the needed information.

12

Optical Storage Device

a storage device that uses laser beams to read the information stored on the reflective surface of a disc.

13

Hard Drive

the most commonly used type of secondary storage device, which stores bits of data as aligned particles on the surface of a magnetic disk.

14

Floppy Disk Drives

a storage device that reads floppy disks.

15

CD-ROM Drive

the most common read-only optical storage device.