Exam 2: A Closer Look at Hardware and Software

The data on a read-only disc cannot be ____ because the pits that are molded into the surface of the disc when the disc is produced are permanent.

Storage systems are RAM, which is volatile and holds data only temporarily.

RAM connects all components of the computer system and is the PC's main circuit board, as shown in the accompanying figure.

Cache memory is used to speed up processing by storing the data and instructions that may be needed next by the CPU ____.

The primary appeal of digital ____ cameras like the one in the accompanying figure is that the images are immediately available for viewing or printing, instead of having to have the film developed first.

As shown in the accompanying figure, a(n)____________________ is an input device that takes pictures and records them as digital data (instead of film or videotaped images).

Some PCs and devices use special electronic pens (also called digital pens and tablet pens)that don't scratch the screen and that contain buttons or switches; others accept input via a small metal or plastic ____.

POS software is software that is developed and sold for a profit. _________________________

RFID-tagged items can be read by an RFID reader when they are within a range from two inches up to ____, depending on the type of tags and the radio frequency being used.

Data in RAM is kept when the program using that data is closed.

A display device for a desktop computer is more formally called a(n)____________________.

With molded or stamped optical discs, tiny depressions (when viewed from the top side of the disc)or bumps (when viewed from the bottom)are created on the disc's surface. These bumps are called ____.

Laser printers print one entire page at a time.

A higher CPU clock speed means that more instructions can be processed per second than the same CPU with a lower CPU clock speed.

Most CPUs today are single-core.

Most digital computers are binary computers, which can understand only two states, usually thought of as ____ and represented by the digits 0 and 1.

A type of nonvolatile memory into which data can be stored and retrieved is called ____________________ memory.

The kind of input device shown in the accompanying figure is popular but is seldom used by individuals to input photographs and other personal documents into a computer.

The numbering system that represents all numbers using just two symbols (0 and 1)is called the ____________________ numbering system.

The screen of a display device is divided into a fine grid of small areas or ____ called pixels (from the phrase "picture element").