Module 2: CC Digital Devices

•At its core, a BLANK is a multipurpose device that accepts input, processes data, stores data, and produces output, all according to a series of stored instructions

Computer

BLANK is whatever is typed, submitted, or transmitted to a computer

BLANK is the result produced by a computer

Input

Output

Computers BLANK by performing calculations, modifying documents and pictures, drawing graphs, and sorting lists of words or numbers

•Processing is handled by the computer’s BLANK

Process data

central processing unit (CPU)

The IPOS MODEL

What is a computer program?

The instructions that tell a digital device how to carry out processing tasks are referred to as a computer program, or simply a program

Program function?

Programs form the software that sets up a computer to do a specific task

When a computer “runs” software…

it performs the instructions to carry out a task

The first computers were “programmed” to perform a specific task by ?

connecting wire circuitry in a certain way

What is stored program?

means that a series of instructions for a computing task can be loaded into a computer’s memory

Computers run three main types of software:

•Application software

•System software

•Development tools

What is application software?

is a set of computer programs that helps a person carry out a task

What is the primary purpose of system software?

Example?

is to help the computer system monitor itself in order to function efficiently

Computer operating system or OS

What are used for creating software applications, Web sites, operating systems, and utilities

Developmental tools

An BLANK is a set of microscopic electronic circuits etched onto a thin slide of semiconducting material

Integrated circuit (IC)

What terms are commonly used to refer to integrated circuits

The terms computer chip, microchip, and chip

What are semiconductors?

Semiconductors, such as silicon and germanium, are substances with properties between those of a conductor (like copper) and an insulator (like wood)

The electronic components of most digital devices are mounted on a circuit board called ?

system board, motherboard, or main board

What houses all essential chips and provides connecting circuitry between them

System board

Circuits and chips

•In the computer industry, the term BLANK refers to the size and dimensions of a device or components, such as circuit boards and system units

Form factor

The term BLANK is tech-speak for the part of a digital device that holds the system board

System unit

What are popular form factors?

Component, clamshell, and slate

You can extend the life of your digital devices with regular ?

Maintenance

What are the our components of digital devices that require maintenance:

•System unit

•Keyboard

•Screen

•Battery

Cleaning guidelines?

•Don’t use harsh cleaning products; follow manufacturer recommendations

•Never immerse a device in liquid; water and electronics don’t mix

•Do not allow cleaning agents to drip on keyboards or touchpads

•Do not spray cleaning agents directly on the device; spray them onto a cleaning cloth

•Basic system unit maintenance is simple? Four things

keep the unit clean, prevent it from overheating, shield it from damage, and protect it from electrical surges

Cleaning tips

•Dust with a clean microfiber cloth and disinfect with antibacterial wipes

•Use a low vacuum setting to remove dust from fan vents

•Use a protective case or carrying bags

•Only plug into a surge-protected outlet

Touchscreens collect fingerprints and are a breeding ground for BLANK, so it’s a good idea to clean them periodically

Bacteria

Many touchscreens are made from BLANK which is designed to resist scratching and cracking

Gorilla Glass

Many have an BLANK coating designed to repel oils from fingertips

•A plastic screen protector is a good defense against scratches and cracks

oleophobic

What are considered the fastest computers in the world at the time of construction?

Supercomputers

Supercomputer factors

Can tackle complex tasks that would not be practical for other computers

•Typical uses include breaking codes, modeling weather systems, and simulating nuclear explosions

Define Mainframe

a large and expensive computer capable of simultaneously processing data for hundreds or thousands of users

Mainframe factors

•Main circuitry is housed in a closet-sized cabinet

•Used to provide centralized storage, processing, and management for large amounts of data

What runs on battery power? And factor?

Portables

Their components are contained in a single case for easy transportation

What are also referred to notebook computers?

Factors?

Laptops

Small and lightweight

•Clamshell design with a keyboard as the base

What are handheld devices that can store and play music? (Niche device)

Portable media players

Ex- iPod touch

What are (niche device) multifunctional devices that include a camera, thermometer, compass, calculator, cell phone, GPS, media player, and fitness tracker

Smart watches

Nice devices:

BLANK: monitor your steps and heart rate

BLANK devices that listen for and carry out voice commands to control other devices or search the Internet

BLANK modern refrigerators, washing machines, and other appliances that are controlled by integrated circuits called BLANK that combine sensors with processing circuitry

•Activity trackers

Smart speakers

Smart appliances

Microcontrollers

How to choose a digital device

•Consider how you plan to use your device

•Choose the type of device

•Decide on a budget and stick to it

•Select a platform

•Check out the device’s specifications

Choosing a digital device

Computer ads are loaded with jargon and acronyms,? Such as …

such as RAM, ROM, GHz, GB, and USB