CGS 2100C Chapter Notes - Chapter 2: Binary Code, Maya Numerals, Central Processing Unit
Document Summary
Cgs 2100 (cid:862)we do (cid:374)ot k(cid:374)ow o(cid:374)e (cid:373)illio(cid:374)th of o(cid:374)e per(cid:272)e(cid:374)t a(cid:271)out a(cid:374)ythi(cid:374)g. (cid:863) thomas edison. Digital information: digits- numerals that were invented by ancient civilizations & numeration systems that use them to represent digital info, developed to be used for computation & arithmetic purposes. Data and information: digital data- the necessary ingredients used to process info, data can be text, sound, picture, audio, video, or anything that can be codified and quantified. Output is always a newer level of polished/advanced info. Based on a key that converts plain text into cipher-text or encrypted text. They also used set of 6 bits binary. Coded decimal interchange code (bcdic) for characters and printable graphic patterns. Ascii and ebcdic: 7 bits american standard code for information interchange (ascii) replaced old standards. Unicode: because ascii is biased to english, a stronger representation system called. Unicode was advanced: system uses 2 bytes to represent data and offers 65,000 different combos, ebcdic is becoming obsolete.
