問題一覧
1
How many storage there in Blu-ray dics
50GB
2
Known as microprocessor or processor
Central Processing Unit
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2 major categories of software
System Software, Application Software
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How many storage there in CD "Compact Disk"
700MB
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3 MAIN TYPES OF OPTICAL MEDIA
Cd Dvd blu-ray disc
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IS A PERMANENT FORM OF STORAGE
Primary Memory (Rom)
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Is a portable computer
Laptop Computer
8
COMPUTER UNITS
Input Unit Central Processing Unit Primary Memory Unit Secondary Storage Unit Output Unit
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Classification of Computer
PC, Workstation, Minicomputer, Mainframe, SuperComputer
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Computer is versatile in nature
Vaesatility
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EXAMPLES OF INPUT DEVICES
Scanner Digital Camera Number Keypad
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A storage Module made of flash memory
Flash Disk
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STORES DATA AND PROGRAMS PERMANENTLY
Secondary Memory
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Meaning of ALU
Arithmetic Logic Unit
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Controls and co-ordinates computer components
CU
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Stores The data is to be executed next, very fast storage area
Register
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7 EXAMPLES OF HARDWARE
Monitor Modern System Unit Mouse Speaker Printer Keyboard
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Executes all arithmetic and logical operations
ALU
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PIECE OF COMPUTER HARDWARE EQUIPMENT TO PROVIDE DATA AND CONTROL SIGNAL TO INFORMATION PROCESSING SYSTEM
Input Devices
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A power, single User computer
Workstation
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A smal, single User computer based on micropocessor
Personal Computer
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Characteristics of computer
Speed, Accuracy, Diligence, Storage Capability, Versatility
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A type of laptop that is designed to be even more portable
Netbook Computer
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An extremely fast computer they can perform hundreds of million of instruction per second
Supercomputer
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Examples of Output Unit
Plotters TFT monitor
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Designed to be portable
Tablet Computer
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CALLED DISK DRIVE OR HDD
Hard Disk
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The computer can process data very fast
Speed
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How many storage there in DVD "Digital Video Disk"
8.4 GB
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COMPUTER COMPONENTS
Hardware and Software
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Known as Operating System
System Software
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Powerful multi-user computer
Mainframe
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Meaning of CU
Control Units
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Used to accomplish specific tasks other than just running the computer system
Application Sofware
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Window examples of System Software
Microsoft Windows, Linux, Unix, Mac OSX, DOS
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Any piece of computer hardware equipment used to communicate
Output Unit
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Basically any handheld computer
Mobile Devices
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Type of Printer
Laser Printer, Ink Jet Printer, Dot Matrix Printer
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3 MAIN EXAMPLES OF SECONDARY MEMORY
Hard Disk Optical Disk Flash Memory
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IS A DISK DRIVE THAT USES LASER LIGHT TO STORE DATA
Optical Disk And Flash
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Large volumes of data and information
Storage Capability
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IS A MEMORY SCHEME WITHIN THE COMPUTER SYSTEM
Primary Memory (Ram)
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Meaning of ROM
Read Only Memory
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THE COLLECTION OF PHYSICAL ELEMENTS
Hardware
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Designed to run variety of application in addition
Smartphone
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COMPUTER PROGRAMS
Software
47
Computer is an Electronic Device
Computer
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Meaning of RAM
Random Access Memory
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Is a generic term for organized collection of computer
Software
50
3 MAIN TYPES of CPU
Alu Control Unit Register
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multi-user computer
Minicomputer
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Transfers data form a computer onto paper
Printer
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Computer provides a high degree of accuracy
Accuracy