Computer Skills Placement Exam with Verified Solutions

Computer Skills Placement Exam with Verified Solutions Hardware The physical parts of the computer. (Example: data storage, keyboard, monitor, monitor, hard disk drive, memory, motherboard) software A program or instructions that give directions to the computer. Information Technology (IT) the computers and other electronic devices used to store, retrieve, transmit and manipulate data mainframe computer a large central computer to which users are connected by terminals Network computer a configuration of computers cabled together with one workstation designated as the file server personal computer A computer that can perform all of its input, processing, output, and storage activities by itself. laptop a computer that is portable and suitable for use while traveling. Personal Digital Assistant (PDA) A small, handheld computer used for personal information management. The predecessor to the smartphone. Central Processing Unit (CPU) executes commands from a computer's hardware and software; the principal computer chip that contains several processing components, which determines the computer's operating speed; the "brain" of a computer hard disk a storage device that contains one or more inflexible, circular platters that use magnetic particles to store data, instructions, and information common input devices Keyboard, mouse, scanner, and digital camera, microphone, touchpad, light pen, joystick, camera Common output devices monitor, printer, speakers, plotters, screens computer memory the temporary, internal storage within a computer peripheral device a component, such as a monitor or keyboard, that connects to the computer through data port CPU Speed The rate at which the CPU can perform a task, such as moving data to and from RAM, or performing a numerical calculation. RAM Size Unit gigabytes (GB) Logic Control concerned with event driven changes to the system CPU speed factors Clock speed Word length Bus width Chip line width Random Access Memory (RAM) Temporary memory a computer uses to store information while it is processing. read-only memory (ROM) Permanent storage; instructions are burned onto chips by the manufacturer. input/output devices Ex: touchscreens,