First, read the English article below.

. Wiping your Mac will erase everything, including your operating system, so keeping a backup on an external hard drive or DVD is a good idea. Insert the installation DVD or CD that came with your computer into the computer's disc drive and wait for the computer to recognize the disc. If you are using a USB drive instead of an installation disc, insert the USB drive. It's the black apple icon in the upper-left corner of the screen. It's near the bottom of the menu. This immediately shuts down and reboots your Mac. Wait for your Mac to shut down. If you are using a USB drive instead of an installation disc, hold down ⌥ Option instead. It's located in the "Utilities" section of the Installation menu. It's in the upper-left of the window, under "Internal." It's at the top of the page. Type it in the "Name:" field. " drop-down menu. If you plan to reinstall OS X, select: Mac OS X Extended (Journaled). It's in the lower-right corner of the dialog box. The wipe process will begin. The time to erase your disk will vary based on disk size and the amount of data that was stored on your hard drive. 

Now, please write a short abstract for it in Indonesian. Abstract:
Buatlah cadangan data yang ingin disimpan Masukkan diska pemasangan (installation disk). Buka menu Apple. Klik Restart…. Klik Restart untuk mengonfirmasi. Tekan dan tahan tombol C ketika komputer dijalankan kembali. Buka Disk Utility. Klik diska keras Mac. Klik tab Erase. Berikan nama diska. Klik menu drop-down "Format: Pilih format. Klik Erase.