1 B y s y m bo l s 2 B y e l e c t r i c i t y 3 By magnetics 4 By mechanics

1 b y s y m bo l s 2 b y e l e c t r i c i t y 3 by

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1 . B y s y m bo l s 2. B y e l e c t r i c i t y 3. By magnetics 4. By mechanics QUESTION 4-5 IS TO BE JUDGED TRUE OR FALSE. 4-5. The first computers were designed to manipulate numbers to solve arithmetic problems. 1 . T r u e 2. False 4-6. What is data to be represented called? 1. Numeric data 2. Alphanumeric data 3. Information data 4 . Sou r c e da ta 4-7. Raw data is typically writen on some type of paper document referred to as what type of document? 1. End document 2 . Sou r c e do c u m e n t 3. Classified document 4. Unclassified document 4-8. Numeric, alphabetic, and special characters are represented in a computer's internal storage and on magnetic media through the use of what kind of system? 1 . C od i n g 2. Reading 3. Writing 4. Labeling 4-9. I t i s p o s s i b l e t o r e p r e s e n t a maximum of 256 different characters or bit combinations by using which of the following codes? 1 . 8 - b i t 2. 16-bit 3. 32-bit 4. 64-bit 4-10. In addition to four numeric bits, t h e r e a r e f o u r o t h e r b i t positions used in an a-bit code, what are they called? 1. Area bits 2 . Z on e b i ts 3. Region bits 4. D i s t r i c t b i t s
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4-11. Which of the following numbering systems has a base of 16? 1. Octal 2. Binary 3. Decimal 4 . H e x ad eci m a l 4-12. Representing two numeric characters in one byte (eight b i t s ) i s r e f e r r e d t o a s w h a t ? 1 . P a c k i n g 2. Stacking 3. Doubling 4. Crowding 4-13. By packing data within an 8- bit code, which of the following results are achieved? 1. Storage space required increases and processing speed increases 2. Storage space required increases and processing speed decreases 3. Storage space required decreases and processing speed increases 4. Storage space required decreases and processing speed decreases 4-14. Through the cooperation of several manufacturers, what a-bit code was developed for transmiting and processing data? 1. EBCDIC 2. EBCDTC 3. ASCIT
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4 . A S C I I QUESTION 4-15 IS TO BE JUDGED TRUE OR FALSE. 4-15. The concepts and advantages of ASCII are identical to those of EBCDIC. 1 . T RUE 2.FALSE 4-16. The letter D is represented by what coding in (a) EBCDIC and (b) ASCII? ANSWER: 3 4-17. An additional bit in each storage l o c a t i o n c a l l e d a p a r i t y b i t i s used for what purpose? 1. To stop errors 2. To erase errors 3 . T o d e te c t e rr o r s 4. To reroute errors 4-18. T h e p a r i t y b i t i s a l s o c a l l e d what? 1. Odd bit 2. Even bit 3. Code bit 4 . C h ec k b i t 4-19. T h e t e s t f o r b i t c o u n t i s c a l l e d what? 1. Odd check 2. Even check 3. Stop check 4 . P a r i ty c h ec k 4-20. What storage area accepts and holds input data to be processed? 1 . I npu t 2. Output 3. Working 4. Program 4-21. A single binary digit is called what? 1 . B i t 2. Byte 3. Word 4. Record 4-22. What symbol is used when we refer to the size of computer memory?
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