FPGAs (Field-Programmable Gate Arrays) adalah salah satu jenis piranti yang dapat “diprogram”. Istilah “diprogram” sebetulnya tidak cocok untuk FPGAs. Yang lebih cocok adalah “direkonfigurasikan”. FPGAs adalah suatu matriks yang tersusun atas blok-blok. Masing-masing blok dapat direkonfigurasikan. FPGAs adalah piranti digital, bukan analog. Komponen sistem digital di antaranya adalah rangkaian kombinasi, rangkaian sekuensial, dan interkoneksi. Pada […]

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I do not believe in cryptography as the only solution to setting up a secure system.
Security is based on a tight interaction between
(1) cryptography : the art and science of encrypting and decrypting a data/information/message/packet
(2) protocol : the rules governing interaction/communication between two parties
(3) access control : who are allowed to do what
(4) software : […]

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I welcome comments. This page only serves as a record of what I discussed in the class. I have not put references from The Koran or the sayings of the prophet. These are given in the class.
We need religion, because religion protects 5 (five) basic necessities:
(1) one’s life : religion teaches us not to […]

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Kita telah lama memasuki era digitalisasi di mana semua hal diusahakan berbentuk digital. Sistem informasi tersusun atas
(1) hardware : piranti keras komputer, misalnya CPU (Central Processing Unit, memory (RAM, ROM< flash disk), LCD monitor, keyboard, mouse, dsb.
(2) software : piranti lunak komputer, misalnya sistem operasi (MS Windows, Linux, Mac OS, Android), program aplikasi (MS Office, […]

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