Why the difference in the output format?

I am new to PS and using the PowerShell ISE tool.   At the bottom of my ISE screen I have a blue command window.  In that window I will type this.

Get-Content "c:\temp\atl.txt"   the output is displayed like this.

NameTypeDescriptionOffice Communications Server Address

ATLWD022378Computer

ATLWDJSMOTHERComputer

ATLWDLCROTTY07Computer

ATLWDPIERCEOF7Computer

ATLWLATLTEMP04Computer

ATLWLCPIERCEComputer 

ATLWLCTENLEY7Computer

ATLWLGCOOKL7Computer

ATLWLSKORTH7Computer

ATLWLTEMP3Computer

ATLWLVNEBUS7Computer

Then, from the top of my ISE window I execute this:

$File = gc "c:\temp\atl.txt"

Write-Host $File

The output is displayed on one long line.  

NameTypeDescriptionOffice Communications Server Address ATLWD022378Computer 

.

Why the difference in the output format?   Just wondering.