Representing Data

... BTEC NATIONAL CERTIFICATE - it practitioners [general] Centre 31200 Assignment number: 1 - Representing Data Students Name Anas Patel UNIT title Computer Architecture Unit Number 9 Date of Issue 16 March Date due 3 April 2009 Re-submission date Criteria Achieved Criteria Achieved Criteria Achieved Criteria Achieved P1 criteria achieved Criteria achieved criteria achieved criteria achieved criteria achieved Criteria achieved criteria achieved criteria achieved Task 1 Task 2 Task 3 Task 4 The Binary Number System In computers when data is transmitted down a cable it is transmitted as long strings of ones and zeroes. This is called binary. Computer use binary to talk to each other which is converted for outputting so humans can understand it. Binary is quick and easy when transmitted this is one of the reasons why binary is used. In binary zero is represented using a 0v and 1 is around 3.5v. 64 32 16 8 4 2 1 1 1 1 1 1 1 1 The computer converts this into ASCII. ASCII is a series of number for each character in a word. This means that all the 1 in binary add up to a significant value. The further towards the left the number 1 is the

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