Chapter 10- Essential Peripherals

Digital cameras plug directly into a(n) _______________ port. A. VGA B. USB C. HDMI D. DVI-D

B. USB

Describe how USB 3.0 and 3.1 ports are marked with color.

3.0 Blue 3.1 Teal

Identify two groups of touch screens.

1. built-in screens like the ones in smartphones 2. standalone touch screen monitors like those in many point-of-sale systems.

FireWire IEEE 1394b runs at ___________ Mbps.

800 Mbps

Briefly describe how a CD-RW drive works.

A CD-RW drive works by using a laser to heat an amorphous (noncrystalline) substance that, when cooled, slowly becomes crystalline. The crystalline areas are reflective, whereas the amorphous areas are not.

Explain what a KVM switch is.

A KVM switch is a hardware device that most commonly enables multiple computers to be viewed and controlled by a single mouse, keyboard, and screen. Some KVM switches reverse that capability, enabling a single computer to be controlled by multiple keyboards, mice, or other devices.

Explain what a MIDI file is.

A MIDI file is a text file that takes advantage of the sound-processing hardware to enable the computing device to produce sound. Programmers use these small files to tell the sound card which notes to play; how long, how loud, which instruments to use, and so forth. Think of a MIDI file as a piece of electronic sheet music, with the instruments built into your sound card.

Explain how touch screens work.

A touch screen is a monitor with some type of sensing device across its face that detects the location and duration of contact, usually by a finger or stylus. All touch screens then supply this contact information to the PC as though it were a click event from a mouse.

Why did CD-ROM makers invent the ISO-9660 file system? A. FAT and NTFS formats failed on CD-ROM media. B. CD-ROM makers wanted non-PC devices to read CDs. C. The royalties required by Microsoft and Apple were becoming prohibitive. D. CD-ROM makers wanted to collect royalties with the ISO technology.

B. CD-ROM makers wanted non-PC devices to read CDs.

Describe how video is stored.

A video has two or more separate tracks that each go through a compression algorithm called codec. The compressed tracks then get wrapped up into a container file or otherwise called a wrapper. Video files use standard audio codecs for the audio tracks, such as WAV or MP3, but vary wildly in the type of video codecs used

The CD-RW format essentially takes CD-media to the functional equivalent of a(n) _______________flash-media drive. A. 650-MB B. 700-MB C. 850-MB D. 4.37 GB

A. 650-MB

What are the two Blu-ray Disc writable formats? A. BD-R and BD-RE B. BD-ROM and BD-RW C. BD-R and BD-RW D. BD-RW and BD-RE

A. BD-R and BD-RE

Most internal optical drives use _______________. A. SATA B. Mini DIN C. DVI-I D. Thunderbolt

A. SATA

What device is used to scan the chip embedded in devices such as ID badges? A. Smart card reader B. FireWire controller C. USB bridge D. USB reader

A. Smart card reader

On USB 1.1 and 2.0 cables, the A and B ports and connectors use _______________ pins. A. four B. five C.six D. nine

A. four

_______________ is the standard container file for Windows.

AVI

The most common sound recording format these days is ___ ____________, the format used for YouTube, Apple iPhone and iPad, and more.

Advanced Audio Encoding (AAC)

How many devices can a single USB host controller theoretically support? A. 63 B. 127 C. 255 D. 256

B. 127

The highest capacity DVD versions store roughly _______________ of data. A. 8 GB B. 16 GB C. 24 GB D. 32 GB

B. 16 GB

What is the maximum data transfer speed that USB 3.0 can handle? A. 1.5 Gbps B. 5 Gbps C. 10 Mbps D. 10 Gbps

B. 5 Gbps

DVD-ROM is the DVD-equivalent of the standard _______________ data format. A. CD-RAM B. CD-ROM C. CD-RW D. CD-R

B. CD-ROM

Which type of DVD media has a storage capacity of 7.95 GB? A.DVD-5 B. DVD-9 C. DVD-10 D. DVD-18

B. DVD-9

_______________ scanners read standard Universal Product Code (UPC) labels, primarily to track inventory.

Barcode/QR Scanners

_______________ devices scan and remember unique aspects of various body parts such as your retina, iris, head image, or fingerprint, using some form of a sensing device such as a retinal scanner.

Biometric

What is the storage capacity of a Secure Digital Extended Capacity (SDXC) card? A. 4 MB to 4 GB B. 4 GB to 32 GB C. 32 GB to 2 TB D. 128 MB to 2 GB

C. 32 GB to 2 TB

What is the maximum data transfer speed that USB 2.0 can handle? A. 5 Mbps B. 5 Gbps C. 480 Mbps D. 480 Gbps

C. 480 Mbps

What is the maximum cable length allowed by USB 1.1 and USB 2.0 specifications? A. 1.5 meters B. 3 meters C. 5 meters D. 10 meters

C. 5 meters

How much data can a dual-layer Blu-ray disc store? A. 16 GB B. 25 GB C. 50 GB D. 80 GB

C. 50 GB

Which characteristic of sound refers to its loudness? A. Wavelength B. Frequency C. Amplitude D. Timbre

C. Amplitude

What is another term for FireWire? A. eSATA B. CDFS C. IEEE 1394 D. Thunderbolt

C. IEEE 1394

External optical drives often use USB or _______________ connections. A. DVI-I B. Mini DIN C. Thunderbolt D. VGA

C. Thunderbolt

What type of USB ports and connectors are used for interfacing with a PC? A. Macro ports and micro connectors B. Micro ports and macro connectors C. USB A ports and connectors D. USB B ports and connectors

C. USB A ports and connectors

Because both CD-R and CD-RW drives require a powerful _______________, making a drive that could burn CD-Rs and CD-RWs became a simple process, and plain CD-R drives disappeared almost overnight. A. disk B. driver C. laser D. light

C. laser

A sound capture is considered _______________ when recorded at 44.1 KHz, with 16-bit depth and in stereo.

CD quality

Discuss the various CD formats.

CD-ROM (ISO-9660/CDFS)- in beginning it processed data at 150KBps then desired to increase data throughput increased speeds to as hight as 72 x 10,800 KBps CD-R- recordable which enable CR-R drives to add data {74 min disc can hold approximately 650MB and 80 min. disc and hold approx. 700MB CD-RW (rewritable)- enable not only burning a disc, but to burn over existing data on a CD-RW disc. Takes CD media to a functional equivalent of 650MB flash-media drive.

Explain how to interpret the multiplier values for CD-RW drives

CD-RW drive specs have three multiplier values. The first shows the CDR write speed, the second shows the CD-RW rewrite speed, and the third shows the read speed.

The first CDs were designed for playing music and organized the music in a special format called CD-Digital Audio (CDDA), which we usually just call ________________.

CD-audio or CD's

What are some good ways to clean a dirty keyboard?

Clean grime off the keys by using a cloth dampened with a little water, or if the water alone doesn't do the job, use a bit of isopropyl alcohol on a cloth. When your keys start to stick, grab a bottle of compressed air and shoot some air under the keys. Do this outside or over a trash can—you'll be amazed how much junk gets caught under the keys!

_______________ is the oldest, most complex, and physically largest of all removable flash media cards

Compact Flash

What is the storage capacity of a DVD-18 DVD-ROM? A. 4.37 GB B. 7.95 GB C. 8.74 GB D. 15.90 GB

D. 15.90 GB

What is the storage capacity of a single-layer Blu-ray Disc? A. 7.8 GB B. 25 GB C. 35 GB D. 50 GB

D. 25GB

An 8×4×32× CD-RW drive reads at a speed of _______________. A. 4× B. 8× C. 24× D. 32×

D. 32×

Thunderbolt 3 offers throughput up to _______________ Gbps at half the power consumption of Thunderbolt 2. A. 10 B. 20 C. 30 D. 40

D. 40

What common file extension refers to the Fraunhoffer MPEG-1 Layer 3 codec? A. MOV B. MIDI C. WAV D. MP3

D. MP3

What type of USB cable is especially popular on smartphones? A. FireWire connector B. CODEC connector C. Macro connector D. Micro connector

D. Micro connector

What is the most common removable storage media used in modern digital cameras? A. Compact flash (CF) unit B. CD ROM C. USB flash drive D. Secure Digital (SD) card

D. Secure Digital (SD) card

What port color signifies USB 3.1? A. White B. Black C. Blue D. Teal

D. Teal

Thunderbolt 3 uses a USB _______________ connector. A. Type A B. micro-B C. micro-B D. Type-C

D. Type-C

CDs store data by using _______________ pits burned into a glass master CD with a powerful laser. A. bubble B. synthetic C. wave D. microscopic

D. microscopic

List the three distinct standards of recordable DVD-media.

DVD-R- these work like CD-Rs. Write on them but can't erase or alter what's written DVD-RW- discs can be written and rewritten DVD-RW DL- can be written on two layers, doubling the capacity

Describe the pulse code modulation (PCM) sound format and explain what it has evolved into today.

It was developed in the 1960s to carry telephone calls over the first digital lines. With just a few minor changes to allow for use in PCs, the PCM format is still alive and well, although it's better known as the WAV format in the PC world

What three technologies does the DVD format use to achieve its capacities?

First, DVD uses smaller pits than CD-media, and packs them much more densely. Second, DVD comes in both single-sided (SS) and double-sided (DS) formats. As the name implies, a DS disc holds twice the data of an SS disc, but it also requires you to flip the disc to read the other side. Third, DVDs come in single-layer (SL) and dual-layer (DL) formats.

The _______________ CODEC is half the size of h.264 at the same quality and is used to support 4k video.

H.265

The USB 2.0 standard introduced _______________ USB running at 480 Mbps.

Hi-Speed

Describe the role of Thunderbolt. It is a high speed alternative to existing technologies such as USB and FireWire, tapping the PCI Express bus for up to six external peripherals (Thunderbolt functions alongside USB these days.)

It is a high speed alternative to existing technologies such as USB and FireWire, tapping the PCI Express bus for up to six external peripherals (Thunderbolt functions alongside USB these days.)

What is BD-ROM?

It is the Blu-ray Disc equivalent of the standard DVD-ROM data format except, it can store much more data and produces superior audio and video results.

Describe the important features of Blu-ray Disc Media.

It is the last generation of optical disc formatting and storage technology. It offers near perfect audio and video quality. It has huge store capacity of up to 25GB (single-layer disc), 50GB (dual-layer disc), and 100GB (BDXL)

List the three connections included with virtually every sound card.

Jacks On most systems, the main stereo speaker jack is green, the line in jack is blue, and the microphone jack is pink

How do you configure a keyboard and what tool might be used?

Keyboard Control Panel in Windows This tool enables you to change the repeat delay (the amount of time you must hold down a key before the keyboard starts repeating the character), the repeat rate (how quickly the character is repeated after the repeat delay), and the default cursor blink rate

_______________ is the standard container file for Apple QuickTime.

MOV

_______________ is probably the most common video format these days and is used for h.264 and h.265 video.

MP4

List the two smaller forms of the Secure Digital (SD) card.

Mini-SD Micro-SD

Describe two types of barcode scanners that are commonly used with personal computers.

Pen scanners- they look like an ink pen and must be swiped across the barcode. Hand scanners-dare held in front of the UPC code while a button is pressed to scan All barcode scanners emit a tone to let you know the scan was successful

_______________ media refers to any type of mass storage device that you may use in one system and then physically remove from that system and use in another. ________________________________________

Removable

Many sound cards come with a special _____________ connector that enables you to connect your sound card directly to a 5.1 speaker system or receiver.

SPDIF

Briefly define the term sampling.

Sampling means capturing the state or quality of a particular sound wave a set number of times each second. The sampling rate is measured in units of thousands of cycles per second, or kilohertz (KHz).

Explain what a thumb drive is.

They are flash devices that have a standard USB connector

Discuss the three kinds of SD cards and their storage capacities

Standard SD cards store from 4 MB to 4 GB Secure Digital High Capacity (SDHC) cards store 4 GB to 32GB Secure Digital Extended Capacity (SDXC) cards have a storage capacity of 32 GB to 2 TB. Early SD card readers and devices cannot read the SDHC or SDXC cards, though the latter standards provide backward compatibility.

What are the functions of the three multiplier values in the CD-RW drive specs?

The first number shows the R or write speed. The second number shows the rewrite speed. The third number shows the read speed

How much data can the lowest capacity DVDs of today hold?

The lowest capacity DVD holds 4.37 GB of data, or two hours of standard-definition video.

Describe the proprietary Extreme Digital (xD) Picture Cards Extreme Digital (xD) Picture Card and identify where the card is used.

The proprietary Extreme Digital (xD) Picture Cards were about half the size of an SD card. They were used in Olympus and Fujifilm digital cameras. The xD-Picture Cards came in three flavors: original, Standard (Type M), and Hi-Speed (Type H). Fuji and Olympus have moved on to using SD cards in their cameras;

Describe how to use a KVM switch.

To use a KVM switch, you simply connect a keyboard, mouse, and monitor to the KVM switch and then connect the KVM switch to the desired computers. Once connected and properly configured, assigned keyboard hotkeys—a combination of keys typically assigned by the KVM switch manufacturer—enable you to toggle between the computers connected to the KVM switch. In most cases, you simply tap the scroll lock key twice to switch between sessions.

How should you clean modern pointing devices such as an optical mouse?

Try using a cloth or damp cotton swab to clean out any bits of dirt that may be blocking the optics

Identify the two families of flash memory.

USB thumb drives Memory cards

Sounds vary according to their loudness, also called _______________, how high or low their tone (frequency), and the qualities that differentiate the same note played on different instruments (timbre).

amplitude

The number of characteristics of a particular sound captured during sampling is measured by the ___________ _________ of the sample.

bit depth

A(n) _______________ (otherwise known as a pen tablet) enables users to paint, ink, pencil, or otherwise draw on a computer.

digitizer

The _______________ is both the oldest and still the primary way to input data into a PC.

keyboard

Secure digital cards come in two small forms, called mini Secure Digital and _______________ Secure Digital.

mini

A USB_______________ resides inside the host controller and makes the physical connection to USB ports.

root hub

Computers capture (record) sound waves in electronic format through a process called ______________.

sampling

The combination of ___________ _________ and bit depth determines how faithfully a digital version of a sound captures what your ear would hear.

sampling frequencies

A 2.1 speaker system consists of a pair of standard stereo speakers—called _______________—combined with a subwoofer.

satellites

USB _______________ are flash devices that contain a standard USB connection

thumb drives

The quality that differentiates the same note played on different instruments is called _______________.

timbre

A(n) ______________ moves the cursor as you move your fingers over its surface.

touchpad

A microphone records sound by detecting _______________ and turning them into an electronic signal.

vibrations

Cameras in or on computer monitors are often called _______________.

web cams

The algorithms that store full-quality WAV files as compressed files are called _______________.

wrapper

When both the video and audio streams of a video file are compressed, the file is placed into some sort of container file or ____________.

wrapper

Provide a list of standard sound jacks and their purposes.

• Main speaker out- the main speaker output is where you plug in the standard speaker connector. • Line out- Some systems will have a separate line out jack that is often used to connect to an external device such as a CD or MP3 player. This enables you to output sounds from your computer. • Line in connects to an external device such as a CD or MP3 player to enable you to import sounds into your computer. • Rear out connects to the rear speakers for surround sound audio output. • Analog/digital out- acts as a special digital connection to external digital devices or digital speaker systems, and it also acts as the analog connection to center and subwoofer channels. • Microphone- connects to an external microphone for voice input