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ConvenientMagenta

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computer science computer hardware computer software computer basics

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This document contains questions and answers about computer science concepts. Topics include hardware, software, networking, and data representation.

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Sheet1,2,3,4,5 answers 1- Process in the computer is directed by software ……but performed by the … hardware…………. 2- WAN wide area Network………………………….. connects computers over great distances. 3- The Central Processing Unit (CPU) consists of both the control unit and...

Sheet1,2,3,4,5 answers 1- Process in the computer is directed by software ……but performed by the … hardware…………. 2- WAN wide area Network………………………….. connects computers over great distances. 3- The Central Processing Unit (CPU) consists of both the control unit and the arithmetic/logic unit. 4- Processing instructions one at a time is called serial processing. 5- When the control unit decodes an instruction, the machine cycle is in I-time (Instruction Time). 6- Compilers.............convert the programming instructions written by programmers into the computer language. 7- Data …….. is a representation of a fact, figure, or idea. It can be a number, a word, a picture, or even a recording of sound. 8- The operating system program that remains resident in memory is the kernel. 9- A utility that reorganizes disk files into adjacent storage locations is the disk defragmenter. 10- MHz is the abbreviation of Megahertz. 11- …….Web browser is a program that allows the user to move around and explore the Internet. 12- A group of 8 bits is a…Byte…………. 13-.......Apple MAC is the first O.S that use graphical user interface in 1984 14- The combination of I-time and E-time is called the machine cycle. 15- A 0 or 1 in the binary system is called a(n) bit. 16- Cache memory is a high-speed temporary storage location for data moving between memory and the CPU. 17-....... dot matrix printer is a printer that has a print head that contacts the paper to produce a character. 18- The motherboard is the main circuit board found inside the system unit. 19- Computers can be used in the retails field in medical…………and industry……………. 20- Multiprocessing uses multiple processors in the same computer at the same time. 21- The four steps in a machine cycle are fetch, decode, execute, and store. 22- RAM stands for …Random Access Memory 23- Computer memory in which user cannot write new information or instruction is Read-Only Memory (ROM) 24- A utility that reduces the amount of space required to store a file is a(n) file compression utility. 25- Command-line operating systems (e.g., MS-DOS) use a command-line interface. 26- A program that overlays the operating system to provide a more user- friendly environment is the shell. 27- 28- File Explorer ………………… is the main file management utility 29- The type of software that you can try it before you buy it, is called shareware 30- The ability of a computer to overlap the steps in a machine cycle is known as pipelining. 31- The system bus transfers data between the CPU and memory. 32-....... Dot pitch is the distance between each pixel on the screen measured in millimeters. 33- GUI stands for Graphical User Interface. 34- The extension of the Microsoft Access is.accdb……………………………. 35- Remove a program in the proper way, by choosing Uninstall a program……in the Control Panel. 36- ………. Vertical Applications/Enterprise applications are used across the divisions of a company 37- TCP/IP stands for Transmission Control Protocol/Internet Protocol. 38- The kind of signal that most telephone lines require is analog. 39- Computers can be used in the finance field in Banking……………. and stock…………… 40- A(n) modem converts a digital signal to an analog signal and vice versa. 41- Bluetooth is a wireless technology used to connect devices over distances less than 30 feet. 42- A(n) wireless access point (WAP) allows laptops with wireless NICs to connect to a network. 43- ISP stands for Internet Service Provider.…… ………..…. 44- A(n) network interface card (NIC) is the device used to connect a PC to the network. 45- …… Output. devices, convert from electronic form to some other form.

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