Chapter 3: Hardware

Question 1

are continuous and can be represented by smooth wave pattern.

Answer 1

Analog signals

Question 2

A number expressed in the binary numeral system, or base-2 numeral system, which represents numeric values using two different symbols: typically 0 (zero) and 1 (one).

Answer 2

Binary

Question 3

The smallest unit of data in a computer represented by one or zero.

Answer 3

Bit

Question 4

A wireless technology standard for exchanging data over short distances (using shortwavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz[4]) from fixed and mobile devices, and building personal area networks.

Answer 4

Bluetooth

Question 5

The electrical connection between different computer components that is an important determiner of the computer’s speed.

Answer 5

Bus

Question 6

A unit of data that computers use to represent a character such as a letter, number, or typographic symbol with a group of eight bits.

Answer 6

Byte

Question 7

The “brains” of the device, carries out the commands sent to it by the software and returns results to be acted upon.

Answer 7

Central Processing Unit (CPU)

Question 8

Is an electronic device which uses discrete, numerable data and processes for all its operations.

Answer 8

Digital Devices

Question 9

Where data is stored when the computer is turned off and where it is retrieved from when the computer is turned on.

Answer 9

Hard Disk

Question 10

The part of an information system you can touch–the physical components of the technology.

Answer 10

Hardware

Question 11

A measure of computer processing speed.

Answer 11

Hertz

Question 12

Peripheral hardware used to provide data and control signals to a computer. Examples include keyboards, mice, scanners, digital cameras and joysticks.

Answer 12

Input Devices

Question 13

Specifically Computer Memory. Any physical device capable of storing information temporarily or permanently.

Answer 13

Memory

Question 14

The observation that over the history of computing hardware, the number of transistors in a dense integrated circuit has doubled approximately every two years.

Answer 14

Moore’s Law

Question 15

The main circuit board on the computer that connect to the CPU, memory, and storage components, among other things.

Answer 15

Motherboard

Question 16

Provides connectivity between your computer and the Internet, a network, or another computer.

Answer 16

Network Connection

Question 17

sends data from a computer to another device or user. This includes audio and video output. Other examples are monitors, projectors, speakers, headphones and printers.

Answer 17

Output Devices

Question 18

The working memory that begins to load information from the hard disk as the computer starts up.

Answer 18

Read Access Memory (RAM)

Question 19

Fixed storage components. Removable storage media that is portable.

Answer 19

Removable Media

Question 20

The retention of retrievable data on a computer or other electronic system. Storage Devices: Is any device used to store digital data or information through input or output operations.

Answer 20

Storage

Question 21

Performs the same function as a hard disk: long-term storage that uses spinning disks, flash memory, which is much faster.

Answer 21

Solid State Drive (SSD)