WEEK 2

Question 1

Why learn about hardware? (2)

Answer 1

• Hardware can improve productivity, increase revenue, reduce costs, and provide better service
• Managers are expected to know about hardware

Question 2

Why are Managers expected to know about hardware? (2)

Answer 2

– To help define business needs

– To ask questions and evaluate options when buying equipment

Question 3

• Choosing the right computer hardware requires understanding its _________to the_________and needs of the organization (2)

Answer 3

relationship & information system

Question 4

Hardware objectives ______________________________, the information system and the current and future needs of the organization

Answer 4

subordinate to, but supportive of

Question 5

• Central processing unit (CPU)
• Primary memory: holds program instructions and data for processing
• Secondary storage: more permanent storage
• Input and output devices
• Communications devices

Answer 5

Hardware Components

Question 6

CPU and Computer Architecture. bits? (2)

Answer 6

• 32 bits

* 64 bits

Question 7

Memory Characteristics and Functions: Types of Memory

− Temporary
− Volatile

Answer 7

Random access memory (RAM)

Question 8

− Usually nonvolatile

Answer 8

• Read-only memory (ROM)

Question 9

simultaneous execution of two or more instructions

Answer 9

• Multiprocessing

Question 10

shares workload among two or more independent processors in a single computer

Answer 10

Multicore microprocessor

Question 11

links several processors to operate at the same time, or in parallel

Answer 11

Parallel processing

Question 12

collection of computers working to solve a common problem

Answer 12

Grid computing

Question 13

Secondary Storage and Input and Output Devices

− Also called permanent storage
− Nonvolatile
− Greater capacity and greater economy than memory

Answer 13

Secondary storage

Question 14

• Fast access
• No moving part
• Works like a portable flash drive

Answer 14

Solid State Drive

Question 15

redundant array of independent disks
Stores extra bits so that data can be reconstructed if system fails

Common for servers

Answer 15

RAID

Question 16

storage area network

Provides high-speed connections between data storage devices and computers over a network

For multiple servers

Answer 16

SAN

Question 17

− Direct access optical disc, e.g., CD-ROM

Answer 17

Optical disks

Question 18

− Stores several gigabytes of data

Answer 18

Digital video disk (DVD)

Question 19

− stores 5 times more than DVD

Answer 19

Blu-Ray

Question 20

− Nonvolatile silicon computer chip

Answer 20

Flash memory

Question 21

INPUT DEVICES

• Keyboard, mouse

Answer 21

Personal computer input devices

Question 22

INPUT DEVICES

− Input devices that recognize human speech

Answer 22

Speech-recognition technology

Question 23

INPUT DEVICES

− Input device used with PC to record/store images in digital form

Answer 23

Digital cameras

Question 24

INPUT DEVICES

− Allow display screens to act as input devices as well as output devices (ex. smartphone screens)

Answer 24

Touch-sensitive screens

Question 25

INPUT DEVICES

− Employs a laser scanner to read a bar-coded label

Answer 25

Bar-code scanners

Question 26

INPUT DEVICES

− Activate a command, enter handwritten notes, and draw objects

Answer 26

Pen input devices

Question 27

INPUT DEVICES

− Employs a microchip with an antenna to broadcast its unique identifier and location to a receiver

Answer 27

Radio Frequency Identification (RFID)

Question 28

INPUT DEVICES

Voice, face, touch, etc.

Answer 28

Biometrics

Question 29

Output Devices

− Output quality measured by number of pixels and dot pitch

Answer 29

Display monitors (CRTs)

Question 30

Output Devices

− Easier on eyes, use less electricity, take up less space than CRTs

Answer 30

Liquid crystal displays (LCD)

Question 31

− emits light

Answer 31

Light-Emitting Diode (LED)

Question 32

Printers and plotters: hard copy output

laser, inkjet

Answer 32

Printers

Question 33

used for general design work

Answer 33

Plotters