Can i write Allah's name simple without diactritics ? -
What are diacritics(Zer zabar pesh) called in Arabic/urdu?
Can any one name the one's used in Allah's name?
Yes, you can write names of Allah, without diacritics. Diacritics are mostly to help Non-Arabs to read Arabic texts.
Diacritics in Arabic:
Hamza - indicates glottal stop.
Tanwin - plays grammatical role.
Shadda - doubles consonant.
Wasla & Madda - Hamza related, look for Hamza in wikipedia.
Short Alif - Used instead of dropped Alif in writing.
Harakat or Tashkil - Vowel sound indicators.
Fatha : /a/
Kasra : /i/
Damma : /u/
Sukun : No vowel sound.
Word "Allah" contains of 4 letters: Alif+Lam+Lam+Ha. The diacritics in standard writing: Fatha on Alif, Shadda on second Lam, and Short Alif on Shadda, and Damma on Ha.