PPT-Numbers in a Computer

Unsigned integers Signed magnitude 1s complement 2s complement Floating pointfloat double Unsigned integers Set bits to the magnitude of the number Ex using a nibble 4 bits 0 0000 8 1000. Each digit is multiplied by an appropriate power of 10 depending on its position in the number For example 843 8 x 10 4 x 10 3 x 10 8 x 100 4 x 10 3 x 1 800 40 3 For whole numbers the rightmost digit position is the ones position 10 1 The Binary Systems. Humans. Decimal Numbers (base 10). Sign-Magnitude (-324). Decimal Fractions (23.27). Letters for text. Computers. Binary Numbers (base 2). Two’s complement and sign-magnitude. Binary fractions and floating point. Introduction to Arrays. Review. A Conditionally-Controlled . Loop repeats…. . as long as a particular condition exists. .. A Count-Controlled Loop repeats…. a specific number of times.. A count-controlled loop has three elements. CE 311 K - Introduction to Computer Methods. Daene C. McKinney. Introduction. Computer Storage. Binary Numbers. Bits & Bytes. Computer Storage and Number Representation. Computer Storage. Numbers and letters. Classification of Computers. Types of Computers. 1. Analog Computers. Analog computers are used to process continuous data. Analog computers represent variables by physical quantities. Thus any computer which solve problem by translating physical conditions such as flow, temperature, pressure, angular position or voltage into related mechanical or electrical related circuits as an analog for the physical phenomenon being investigated in general it is a computer which uses an analog quantity and produces analog values as output. Thus an analog computer measures continuously. Analog computers are very much speedy. They produce their results very fast. But their results are approximately correct. All the analog computers are special purpose computers.. Computing – Pre 1900. Raj . Reddy. Carnegie Mellon University. Jan 14, 2013. rr@cmu.edu. 15-346 Schedule of Presentations. Spring 2013.  . Jan 14 . Raj Reddy. . Origins . of Computers I – Pre 1900. Aviral Shrivastava. Department of Computer Science and Engineering. School of Computing and Informatics. Arizona State University. Slides courtesy: Prof. Yann Hang Lee, ASU, Prof. Mary Jane Irwin, PSU, Ande Carle, UCB. Architecture. Floating . Point Arithmetic. Instructors:. Vladimir Stojanovic & Nicholas Weaver. http://. inst.eecs.berkeley.edu. /~cs61c/. New-School Machine Structures. (It’s a bit more complicated!). More Arithmetic:. Multiplication, Division & Floating-Point. Montek Singh. Nov . 9, . 2015. Lecture . 12. Topics. Brief. overview of:. integer multiplication. integer division. floating-point numbers and operations. and Architecture. 9. th. Edition. Chapter. 10. Computer. Arithmetic. Arithmetic & Logic . Unit (ALU). Part of the computer that actually performs arithmetic and logical operations on data. All of the other elements of the computer system are there mainly to bring data into the ALU for it to process and then to take the results back out. Representation of information. Binary negative numbers. In order to represent binary positive and negative numbers, one has to assign the first bit for the sign.. . (0 1011). 2. =(11). 10. (1 1011). 2. 6. The Excite Poll is an online poll at poll.excite.com. You click on an answer to become part of the sample. One poll question was “Do you prefer watching first-run movies at a movie theater, or waiting until they are available on home video or pay-per-view?” A total of 8896 people responded with 1118 saying they preferred theaters. From this survey you can conclude that . Presented by: Andrew F. Conn. Adapted from: Adam J. Lee. Lecture #11: Hashes, PRNGs, Primes, GCDs, and LCMs. October 5. th. , 2016. Today. ’. s Topics. Modulo Wrap Up. Hash Functions. Pseudorandom Number Generators. Do you see yourself?. Computer users NEVER die.......... they just go offline...........