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Electronic circuits can usually be categorized as analog, discrete, or mixed-signal (a combination of analog and discrete) electronic circuits.
Electronic circuits can usually be categorized as analog, discrete, or mixed-signal (a combination of analog and discrete) electronic circuits.
==Etymology==
a. F. circuit, ad. L. circuitus going round, f. circu(m){imac}re, f. circum round + {imac}re to go.]
===Definition===
*The line, real or imaginary, described in going round any area; the distance round; the compass, circumference, containing line or limits.
===Usage===
1382 WYCLIF Ecclus. xliii. 12 See the bowe..He cumpaside heuene in the circuyt [1388 cumpas] of his glorie. c1386 CHAUCER Knt.'s T. 1029 The circuit a myle was aboute Walled of stoon and dyched al with oute. c1400 MANDEVILLE xviii. 187 Java..is nyghe 2000 Myle in circuyt. 1570 BILLINGSLEY Euclid I. iv. 14 The circuite or compasse of a triangle is a line composed of all the sides of a triangle. 1593 SHAKES. 3 Hen. VI, I. ii. 30 To weare a Crowne, Within whose Circuit is Elizium. 1652 NEEDHAM Domin. Sea Advt. 2 The circuit of this Sea..must contein above 1200 miles. 1704 ADDISON Italy (1766) 124 Sheltered with a noble circuit of woods and mountains. 1847 GROTE Greece IV. II. lii, A rude Circuit of stones, of unknown origin.
[[Image:Circuit.jpg|center|frame]]
==Analog circuits==
==Analog circuits==
