Many of the keys that you'd see on a PC have equivalent keys on an Apple keyboard.
I think the keyboard layout you are looking for is 'ABC Extended' on Mac OS X El Capitan (10.11). If you are on an older version of Mac OS X this keyboard layout is called 'US Extended', the rest of this answer uses the most recent name but everything else is the same between versions.
Oh, I just remembered, the Japanese 'fifty key' keyboard has an abc lyout. However, all the function keys, like space and enter, are labeled in Japanese, so things might be confusing. Anyway, if you want to give it a try, when you first switch to that keyboard, all keys are Japanese. Tap the 'abc' button on the left, and you get abc layout.
On a Mac keyboard, you’ll see the following layout: Control, Option, Command. In Boot Camp, these keys function as Control, Alt, Windows. In other words, the Alt and Windows key are swapped from where you’d expect them to be. Worse yet, Mac users will have to use the Control key for various keyboard shortcuts that require the Command key on.
Applications: This key isn't available on Apple keyboards.
Use the On-Screen Keyboard for other functions
If your Apple keyboard doesn't include the following keys, you can recreate them in Windows using the On-Screen Keyboard.
Apple Keyboard Layout
Use the Snipping Tool to print screen
To recreate the Print Screen and Print Active Window function in Windows, use the Snipping Tool.
If your keyboard isn't working as expected in Windows
If your Apple keyboard works as expected in macOS but not in Windows, try these solutions:
Install the latest Apple software updates for Windows.
Install the latest Windows support software.
If you're using Microsoft Windows 10 N, install the latest Media Feature Pack.
Learn more
Microsoft provides a keyboard mapping article that describes using a Windows keyboard with macOS.
Use Microsoft Keyboard Layout Creator to find key combinations for the unique characters used by the language and region your Apple keyboard is designed to support:
Download, install, and open the Microsoft Keyboard Layout Creator.
Choose File > Load Existing Keyboard.
Select the keyboard you want to see.
Find the country or region name in the keyboard list that's followed by '(Apple)'.
Follow the instructions provided with the app. You can print images of the keyboard, including what keys look like when holding modifiers like Shift, Option, or Fn.
Picture Of Mac Keyboard Layout
Since the 1980s, Macintosh computers have included a keyboard layout that facilitates the typing of diacritics and other symbols through the use of the Option key. Windows supplies an “International” layout with a limited range of accents, but using this layout makes the quotation mark and apostrophe keys unusable.
These keyboard layouts fix this situation: one duplicates the standard U.S. layout used on the Mac (also identical to the “Canadian English” keyboard layout), and the other replicates the “U.S. Extended” keyboard layout introduced with Mac OS X. The U.S. Extended provides more accents and places some characters in more logical positions, but the standard Mac layout provides access to a few mathematical symbols that some might find useful. Unlike the Windows layout, these do not change the basic U.S. keyboard.
For their use, see Penn State University or Harvard for the U.S. Extended layout, or Penn State’s page on the standard Mac layout, substituting the AltGr (right Alt) key for the Option key. The Windows On-Screen Keyboard also displays the available combinations.
To install, unzip the downloaded file, and run the “setup.exe” program corresponding to the desired layout; the installer will automatically add the layout to the input menu. Both layouts can be installed on a system simultaneously, and can be removed through the Control Panel.
The source files are in Microsoft Keyboard Layout Creator format. Adobe has since created a script for converting keyboard layouts from Mac to Windows format.