Multi Media

 Bit :  Bit : is the basic unit of information in computing and telecommunications; it is the amount of information that can be stored by a device or other physical system that can normally exist in only two distinct states (0 or 1).  1 Bit  2 Bit 2 Bit = 2² = 4 (Alternatives) Multi Media Alternatives(A,B) 1(0,0) 2(0,1) 3(1,0) 4(1,1) Truth Table

Multi Media  3 Bit 3Bit = 2³= 8(Alternatives) 0 1 Alternatives(A,B) 1(0,0,0) 2(0,0,1) 3(0,1,0) 4(0,1,1) 5(1,0,0) 6(1,1,0) 7(1,0,1) 8(1,1,1) Truth Table 0 1

Multi Media  4 Bit 4 Bit = 2 = 16 (Alternatives)  5 Bit 5 Bit = 2=32 (Alternatives) 0 1

Multi Media  6 Bit = 64 (Alternatives)  7Bit= 128 (Alternatives)  8Bit = 256(Alternatives) = 1 Byte 0 1 ASCII Code Changed to 1 Byte to be understood by the computer system

Multi Media ASCII Code : Is The American Standard Code for Information Interchange Look to Lec11MM.doc

 1 Character ASCII Code Byte Bit  Every character has its own ASCII Code = 1 Byte Multi Media …….… ………. ASCII Code 1 Byte 8 Bit

Universal Code:  In computer architecture, 16-bit integers, memory addresses, or other data units are those that are at most 16 bits (2 octets) wide.  A 16-bit file format is a binary file format for which each data element is defined on 16 bits (or 2 Bytes). An example of such a format is UTF-16 and the Windows Metafile Format Multi Media

 The 16-bit Intel architecture allows for different memory models ways to access a particular memory location. The reason for using a specific memory model is the size of the assembler instructions or required storage for pointers. Multi Media

 Compilers of the 16-bit era generally had the following type width characteristic:  “Tiny” Code and data will be in the same segment (especially, the registers CS,DS,ES,SS will point to the same segment);“near” pointers are always used. Code, data and stack together cannot exceed 64K. Multi Media Data modelShortIntLongPointer IP16L32(near) I16LP32(far)16 32

 “S mall  “S mall ” Code and data will be in different segments, and “near” pointers are always used. There will be 64K of space for code and 64K for data/stack.  “Medium  “Medium ” Code pointers will use “far” pointers, enabling access to 1MB. Data pointers remain to be of the “near” type.  “Compact” Data pointers will use “far” and code will use “near” pointers.  “Large”/“Huge” Code and data pointers will be “far”. Multi Media

 Case study: An archive CONSISTS of A4 Paper (40 Lines and each Line have 80 characters) AN average rate for data entry is 60 Lines (free of errors)per one hour  Calculate: Page contains = amount of lines * amount of character in each line =40*80 = 3200 characters Multi Media

 3200 characters Click save in buffer ASKII code Byte  Then will enter 60 correct line * 80 character = 80 character/minute 80 character/minute ÷ 60 second  It means 80 character/minute ÷ 60 second = 1.3 character/second  The person will enter the paper in = 3200 character / page ÷80 character/minute= 40minte Multi Media

 We need to take care for : 1.Time established 2.Cost 3.Amount finished Multi Media

 Sources of composing an image are : 1. Camera 2. Scanner 3.Mobile phone  OCR Software: Optical Character Recognition Input Image Output Character Paper Scanned OCR Text 1 minute to enter text using scanner and OCR 40 minute to enter text using person and keyboard Multi Media

 Value of work, time  Information service, Economic service, QoS  Between at least two ( A & B ) : Machine & machine or machine & person or person & person  Service ( Economy, Time, Cost, Quality )  Service doesn’t depend on infrastructure  Information service providers ( ISD ) Multi Media

 SQL 2000  SQL 2005  SQL 2008 Multi Media

 Interactive multimedia service Multi Media

 Usage of multimedia  Digital sensors  Digital Camera+ Soft ware ( Security )  Movie maker usage Multi Media