Premium Essay

Binary Information

In: Computers and Technology

Submitted By Fazlik
Words 2445
Pages 10
What is the difference between data and information:

-Data is the lowest level of knowledge and information is the second level
-Data by itself alone is not significant. Information is significant by itself.
-Observations and recordings are done to obtain data while analysis is done to obtain information.
2. Discuss how computer represents data and basic units of measuring information (up to GB):
Computer represents data using binary numeral system: - bit= binary unit (to 256) - bute- 8 bits - kb= 1024 byrtes - mb= 1024 Kb - gb= 1024 mb 3. Compare ASCII, EBCDIC and Unicode:
ASCII- American Standard Code for Information Interchange ASCII is a 7 digit (7- bit) code EBCDIC-Extended Binary- Coded Decimal Interchange Code (INM mainframes) EBCDIC- represents each character as a unique combination of 8 bits 8 bites=256 unique combinations Unicode- Universal International coding standard design to represent text based data. Unicode identifies each character using, 0s and 1s. It’s a larger code, consisting of 1 to 4 bytes
4. Discuss the difference between computers:
Mainframe-used by large organizations (hospital, university, bank, government offices) -manages a large amount of fertilized data. - located in climate-controlled data centers and connect to the rest of the company computers .via computer network
Supercomputer:
-$2 mil -\220 million - 50 – 50000 times faster than PC. - A large number of processors interconnected by a network. Small (microcomputers or pc)
-$500- $7000
- Desktop computers and work stations
- Laptop Computers
- Notebook Computers
- Palmtop Computers
• Server is a computer program running to serve the request of other programs
• Workstation
-high-end desktop or deskside microcomputer designed for technical applications.
-intended to be used by one person at time.
-popular

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