Chapter 2,3,4 Test Answers Computer Science I

The number of bits used to store color information about each pixel is called _______

Bit depth

Remote storage services accessed via the Internet are often referred to as cloud storage

True

SSDs are not subject to mechanical failures like magnetic hard drives, and are more resistant to shock and vibration

True

In a printer, the number of ______ affects the quality of printed output

Dots per inch (dpi)

Storage media are volatile

False

The main circuit board inside the system unit is called the megaboard

False

The process of representing data in a form that can be understood by a digital computer is called decimal byte representation

False

USB ports are used to connect a computer to a phone outlet via telephone connectors

False

Partitions are sometimes referred to as ________

Logical drives

A(n) ______ instruction might look like a meaningless string of 0's and 1's but it actually represents specific operations and storage locations

Machine language

One factor affecting digital camera quality is the number of pixels, measured in __________ used to store the data for each image

Megapixels

_________ devices are high-performance storage systems that are connected individually to a network to provide storage for the computers connected to that network

Network attached storage (NAS)

______ input data from special forms to score or tally exams, questionnaires, ballots, and so forth

Optical mark readers (OMRs)

Print speed is typically measured in ________

Pages per minute (ppm)

With bitmapped images, the color of each ______ is represented by bits; the more bits used, the better the image quality

Pixel

Most computers today support the ______ standard which means the computer automatically configures new devices as soon as they are installed and the computer is powered up

Plug and Play

Storage devices can be internal (located inside the system unit), external (plugged into an external port on the system unit) or remote (located on another computer)

True

The number of bits being transmitted at one time is dependent on the bus width

True

To convert analog sound to digital sound, several thousand samples - digital representations of the sound at a particular moment - are taken every second

True

Printers produce a soft copy

False

The ______ is the section of a CPU core that performs arithmetic involving integers and logical operations

ALU

A _____ is an electronic path over which data can travel

Bus

A(n) _______ is used to display output from a computer to a wall or projection screen

Data projector

The ______ takes instructions from the prefetch unit and translates them into a form that the control unit can understand

Decode unit

To speed up a magnetic hard drive performance, ______ is often used

Disk caching

Images need to be scanned at a lower resolution if the image will be enlarged significantly

False

Optical character recognition (OCR) is a technology used primarily by the banking industry to facilitate check processing

False

RFID tags need to be within line of sight of a reader

False

ROM (read only memory) also called main memory or system memory is used to store the essential parts of the operating system while the computer is running

False

With a DVD the storage medium and the storage device are permanently sealed together to form one piece of hardware called a fixed-media storage system

False

With rewritable optical media, the laser permanently alters the disc surface

False

__________ is a method of storing data on two or more hard drives that work together

RAID (redundant arrays of independent disks)

CD-ROM discs and DVD-ROM discs are ______ optical discs that come prerecorded with commercial products

Read-only

The surface of a hard disk is organized into tracks and pie-shaped groups of ___________

Sectors

To synchronize all of a computer's operations, a ________ which is located on the motherboard is used

System clock

A graphics tablet is also called a digitizing tablet

True

Automating the data entry process is referred to as source data automation

True

Each location in memory has an address

True

Unlike ASCII and EBCDIC, Unicode is a universal international coding standard designed to represent text-based data written in any ancient or modern language, including those with different alphabets

True

A computer _______ is the amount of data (typically measured in bits or bytes) that a CPU can manipulate at one time

Word