AMI GROUP 2 powerpoint presentation.pptx

kjeremiah747 7 views 12 slides Oct 25, 2025
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About This Presentation

The city of Arcanis never slept. It glowed beneath a violet sky, its towers humming with quiet energy drawn from the storm clouds that hung eternally above. Lightning flickered between the spires like veins of silver light, feeding the reactors that powered everything from the floating markets to th...


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MEMORY MEASUREMENT AND BINARY CODES PRESENTED BY; AMI GROUP 2

INSIGHT ABOUT MEMORY UNITS Memory units provide temporary storage for data during active tasks Memory allows quick access to information needed by the CPU to perform operations efficiently It is like a work place where CPU can quickly retrieve and store data

MEMORY MEASUREMENT A computer memory is measured in units such as bits, bytes, kilobytes, megabytes, gigabytes, terabytes and petabytes etc.

Units of computer memory measurement These are used to quantify the amount of data that can be stored or processed by a computer system. Basic units; Bits Bytes Kilobytes Megabytes Gigabytes etc.

Units of memory measurement explained. MEMORY UNIT EQUIVALANCE IN BYTES APPLICATION Binary digit (0 or1) Bit Building block 8 bits Byte Fundamental unit Kilobyte 1024 bytes Quantify small files Megabyte 1048576 bytes Quantify sizes and storage capacities Gigabyte 1073741824 bytes Quantify hard drives and RAM sizes Terabyte 1099511627776 bytes Quantify large scale devices Petabyte 2 50 Quantify data centers and cloud storage Exabyte 2 60 Quantify enterprise level storage solutions

SIGNIFICANCE OF A BIT IN MEMORY MEASUREMENT A bit is the smallest unit in all memory units, representing a binary digit (0,1) Bits are fundamental components used to store and transmit information across devices. They serve as building blocks for all digital data representation and processing They form the basis of computing systems world wide

CONTINUED. Bits play a crucial role in computer operations by encoding data into binary form (1,0s) allowing machines to interpret and manipulate information effectively. Bits combine to form more significant units like bytes, kilobytes, megabytes, gigabytes etc. Bits are used to represent values; the range of values that can be stored and processed by a memory unit depends on the number of bits it contains.

BINARY CODES This Photo by Unknown Author is licensed under CC BY-SA

Binary codes are sequences of ones (1) and zeros (0) The way of representing text or computer processor instructions by use of binary number system’s of binary digits 0 and 1 Binary codes are used to represent complexed data Operation of binary codes is by encoding and decoding Note

Binary codes are classified into two Alphanumeric codes Numeric codes ASCII-American Standard Code for Information Interchange EBCDIC-Extended Binary Coded Decimal Interchange Code Weighted Non weighted ASCII, a standard data- encoding format for electronic communication between computers eg letters, numerals, punctuation marks etc. EBCDIC, eight-bit character encoding used mainly on IBM mainframe and midrange computer operating systems

WEIGHTED NUMERIC CODES 8 4 2 1 2 4 2 1 3 3 2 1 8 4 (-2) (-1) 6 3 1 (-1) NON WEIGHTED NUMERIC CODES Gray code (unit distance code) Excess -3 codes Examples of numeric codes NB Self complementary means that the sum of the weights must be 9 X-tics of 8421 codes Weighted Sequential X-tics of excess-3 codes Non weighted Sequential Self complementary

Example; Write 782 in 8421 binary code system 7=0111, 8=1000, 2=0010 782 is 011110000010