Cellphones and computers
The human eye and computers
Government officials and computers
Cellphones and the human eye
The author compares computers to cellphones.
The author compares companies to cellphones.
The author compares engineers to cellphones.
The author compares cellular networks to cellphones.
When a person speaks into a cellphone, his or her voice is broken down and reassembled over a radio link, so the person on the other end instantaneously hears what is said.
When computers first showed up around 1941, they were used to transmit sensitive information across geographical spaces by the military because of worries government officials had.
Although people may take for granted the ease with which they can pass along information through computers, many forces are at work to make computer communication more reliable.
Like cellphones, computers can receive, decode, and convert information, though typically this information is written content rather than someone’s voice.
Computers were first used by the military to send sensitive information, but now they are used in homes, schools, and offices to send different kinds of information.
Computers were first used in homes, schools, and offices to send different kinds of information, but now they are used only by the military to send sensitive information.
Computers used to send a person’s voice from one place to another, but now they send only written content.
Computers used to send a person’s voice from one place to another, but they have been gradually replaced by landline telephones.
Cellphones, computers, and how they send information from one place to another
Computers, the Internet, and how the military uses technology to protect people
Cellphones, landline telephones, and the reasons people have trouble hearing each other over the phone
Mobile phone operators, government officials, and companies that work with one another