CGS-2100 Lecture Notes - Lecture 23: Pitch Class, Eniac, Instruction Set
Document Summary
Number systems: a number system is an organized plan for representing a number, the base-10 number system uses 10 digits- 0 through 9- to represent any value. Binary: computers only understand the binary language, binary is a base-2 number system. It uses only 2 digits- 1 and 0. Hexadecimal: programmers commonly use hexadecimal notation to express the numbers in a smaller way, hexadecimal is a base-16 number system. It uses 16 digits instead of 10 or 2. The 16 digits are 0,1,2,3,4,5,6,7,8,9,a,b,c,d,e, and f. The digits a through f correspond to the values 10 through 16. Representing characters: most (cid:272)o(cid:373)puters today use the a(cid:373)eri(cid:272)a(cid:374) natio(cid:374)al ta(cid:374)dards i(cid:374)stitute"s (cid:894)an i(cid:895) code called the american standard code for information interchange (ascii) Able to represent all modern and historic languages and writing systems. Compatible with ascii and is expected to replace it in the future.
