Exam 1: Introduction to the World of Computers

Satellite communication (more commonly called s-com) is the process of exchanging electronic messages between computers over a network-usually the Internet.

____ consists of programs designed to allow people to perform specific tasks using a computer, such as creating letters, preparing budgets, and managing inventory.

As shown in the accompanying figure, the computer is used extensively for access control at many organizations, such as ____ that allow individuals to enter the office building, punch in or out of work, or access the company network by providing the proper credentials or being authenticated via a fingerprint or hand scan.

In piracy , identity thieves send fraudulent e-mails to people masquerading as legitimate businesses to obtain social security numbers or other information needed for identity theft.

Case-Based Critical Thinking Questions Case 1-1 Sarah is a very active real estate agent. She is looking to purchase a new computer and software so she can keep track of her client's accounts, access the Internet from anywhere in the city, and touch-up photos of real estate properties. Sarah needs to store digital photographs of houses she is previewing. She needs to be able to copy these to the computer at her office. What type of storage device should she use?

Fifty years ago, computers were used primarily by researchers and ____.

A computer does not always do whatever the instructions, or program, tell it to do.

Communications hardware includes modems, which are used to connect a computer to the Internet and network projectors , which are used to connect a computer to a computer network.

The term ____ refers to the programs or instructions used to tell the computer hardware what to do.

When data is processed into a meaningful form, it becomes ____.

By their very nature, online communications lend themselves to ____________________. Since recipients usually do not hear senders' voices or see their handwriting, it is difficult to know for sure who the sender is.

Two of the most common types of communications hardware are ____ and network adapters.

The accompanying figure corresponds to the ____ style for desktop PCs.

An e-mail address consists of a(n) username , followed by the @ symbol, followed by the domain name for the computer that will be handling that person's e-mail (called a mail server).

Tablet PCs can use either a slate or a convertible tablet PC design.

Small office networks enable workers to access company records stored on a network server.

Define the six categories into which computers are generally classified.

Hollerith's machine was used to process the 1890 U.S. Census data and was able to complete the task in ____, instead of the decade it usually took to process the data by hand.

Integrated circuits incorporate many transistors and electronic circuits on a single tiny silicon chip, allowing ____ to be even smaller and more reliable than earlier computers.

In cloud worlds, online users can explore anonymously.