INSY 3300 Test 1 Review Questions and Answers 100% Pass
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Course
INSY 3300
Institution
INSY 3300
INSY 3300 Test 1 Review Questions and
Answers 100% Pass
Hardware - Answer- The physical devices that makeup a computer. Includes: CPU,
Main memory, secondary memory, input & output.
CPU - Answer- the part of the computer that actually runs programs (i.e., carry out all
the computational tasks)...
INSY 3300 Test 1 Review Questions and Answers 100% Pass Hardware - Answer - The physical devices that makeup a computer. Includes: CPU, Main memory, secondary memory, input & output. CPU - Answer - the part of the computer that actually runs programs (i.e., carry out all the computational tasks) Main Memory (RAM) - Answer - where computer stores a program while program is running, and data used by the program. CPU is able to quickly access data. Volatile memory used for temporary storage while program is running. Contents are erased when computer i s off Secondary Memory - Answer - can hold data for long periods of time -Programs normally stored here and loaded to main memory when needed Types of secondary memory - Answer - Disk drive: Magnetically encodes data onto a spinning circular disk Solid state drive: faster than disk drive, no moving parts, stores data in solid state memory Flash memory: portable, no physical disk Optical devices: data encoded optically (CDs) Input devices - Answer - Disk drive are considered input devices because they load programs into the main memory. Ex: keyboard, mouse, touchscreen, scanner, camera Output devices - Answer - Disk drives and USB drives can be considered output devices because data is sent to them to be saved. Ex: video display, printer Application software - Answer - word processing, email, games, and Web browsers. Programs that make computers useful for everyday task. System software - Answer - Operating system, Utility Program, Software development tools. Programs that control basic operations of a computer. Operating system - Answer - controls operations of hardware components Utility program - Answer - performs specific task to enhance computer operation or safeguard data Software development tools - Answer - used to create, modify, and test software programs How computers store data - Answer - All data in a computer is stored in sequences of 0s and 1s (binary) Bit - Answer - electrical component that can hold a positive or negative charge, like on/off switch, corresponding to 0 and 1 in the computer Storing numbers - Answer - Binary numbering system. To determine the value of binary number, sum position values of the 1s Storing characters - Answer - Characters are converted to numeric code to be stored in the computer's memory. Encoding schemes include: ASCII -Most important coding scheme limited, defines codes only for 128 characters Unicode -Becoming standard, compatible with ASCII, can represent characters for other languages How does a program work - Answer - 1) Fetch instruction from ram
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