PCAS Exam Questions With 100% Correct Answers

PCAS Exam Questions With 100% Correct Answers It consists of hard ware and software components. - answerComputer System It is the physical equipment. - answerHardware It instructs the computer how to operate. - answerOperating System (OS) It performs different functions or program with specific task. - answerApplication Software It is the main printed circuit board and contains the buses, or electrical pathways, found in a computer. - answerMotherboard It executes a program, which is a sequence of stored instructions. - answerCentral Processing Unit (CPU) Architectures use a relatively small set of instructions, and RISC chips are designed to execute these instructions very rapidly. - answerReduced Instruction Set Computer (RISC) Architectures use a broad set of instructions, resulting in fewer steps per operation. - answerComplex Instruction Set Computer (CISC) It is a technique used to make a processor work at a faster speed than its original specification. - answerOverclocking It is a set of multimedia instructions built into intel processors _______ enabled microprocessors can handle many common multimedia operations that are normally handled by a separate sound or video card. - answerMMX One care inside a single CPU chip that handles all of the processing capability. A motherboard manufacturer may provide to build a powerful, multi-processor computer. - answerSingle Core CPU Two cores inside a single CPU chip in which both cores can process information at the same time. - answerDual Core CPU It is the temporary storage for data and programs that are being accessed by the CPU. - answerRandom-Access Memory (RAM) It is a memory chip that is used as main memory. ________ must be constantly refreshed with pulses of electricity in order to maintain the data stored within a chip. - answerDynamic Random Access Memory (DRAM) It is a memory chip that is used as cache memory. ______is much faster than DRAM and does not have to be refreshed as often. - answerStatic Random Access Memory (SRAM) It is memory that supports paging. Paging enables faster access to the data than regular DRAM. Most 486 and Pentium systems from 1995 and earlier use FPM memory. - answerFast Page Mode DRAM (FPM Memory) It is memory that overlaps consecutive data accesses. This speed up the access time to retrieve data from memory, because the CPU does not have to wait from one data access cycle to end before another data access cycle begins. - answerExtended Data Output RAM (EDO Memory) It is a DRAM that operates in synchronization with the memory bus. The memory bus is the data path between the CPU and the main memory. - answerSynchronous DRAM (SDRAM) Is faster than DDR SDRAM memory. _____________ improves performance over DDR SDRAM by decreasing noise and crosstalk between the signal wires. - answerDouble Data Rate 2 SDRAM (DDR2 SDRAM) It is a memory chip that was developed to communicate at very high rates of speed. RDRAM chips are not commonly used. - answerRambus DRAM (RDRAM) A unit is the piece of hardware that's used to convert the power provided from the outlet into usable power for the many parts inside the computer case. - answerPower Supply A piece of computer hardware that's numerous contacts on the bottom of the card and one or more ports on the side for connection to video displays and other devices. - answerVideo Card A storage drive reads or writes information to magnetic or optical storage media. The drive can be used to store data permanently or to retrieve information from a media disk. - answerHard Drives and Floppy Drives A storage device that uses removable 3.5-inch floppy disk. - answerFloppy Drives A magnetic storage device that is installed inside the computer. - answerHard Drives A storage device that uses lasers to read data on the optical media. - answerOptical Drive A removable storage device that connects to a USB port. - answerFlash drive