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book flash cards
CompTIA Strata Study Guide Flash cards
What does CPU stand for?
Central processing unit
refers to the amount of data that can simultaneously enter the processor in one operation.
What numbering system uses only digits 0 through 9?
What CPU brand includes the Phenom II, Athlon II, and Turion II CPUs?
Advanced Micro Devices (AMD)
What does LGA stand for, and what is it?
Land grid array, a type of CPU socket in a motherboard
How is CPU speed measured?
In gigahertz (GHz) for modern CPUs; in megahertz (MHz) for older ones
What is MIPS, and how does it relate to CPU performance?
Millions of instructions per second; the number of instructions per second a CPU can process
What is the purpose of the L1 cache?
It holds data that the CPU might need soon, reducing the amount of time the CPU has to wait for the data it needs.
A(n) microprocessor is a hybrid between a multicore processor and a specialized system, and it is used in gaming consoles such as the PlayStation 3 and the Xbox 360.
A ....... is a block of heat-conductive metal that touches the processor and draws the heat away from it.
What does BIOS stand for?
Basic Input/Output System
What is the difference between static and dynamic memory?
Static memory does not have to be constantly refreshed to retain its content, and dynamic memory does.
True or false: virtual memory is employed when part of the computer's RAM is used as a hard disk.
What is the relationship between the system bus speed and the speed of the DDR SDRAM in the system?
Double data rate (DDR) SDRAM can operate at twice the speed of the system bus.
What does DIMM stand for?
Dual inline memory module
True or false: a 240-pin DIMM would be likely to be used in a notebook computer or smart phone.
...... labeled F1 through F12, perform special purposes depending on the application or the operating system in use.
List three modifier keys on a standard desktop keyboard.
Shift, Ctrl, Alt
The keyboard key with a four-sectioned flag graphic on it is the ...... key.
On a notebook computer, the ...... key is like an alternative version of the Ctrl key. When combined with some other keypress, it performs a special command.
What type of interface does a keyboard use?
Modern keyboards use USB; older keyboards use PS/2.
On a 10-key keypad, what are the 10 keys the name refers to?
0, 1, 2, 3, 4, 5, 6, 7, 8, and 9
In a mechanical mouse, there is a rubber ...... on the underside that rolls across the mouse pad or a desktop.
True or false: in an optical mouse, a ball rolls past a light-emitting diode inside the mouse.
True or false: tablet computers do not have hard drives.
True or false: the decimal value of the binary number 111 is 7.
How many megabytes in a gigabyte?
Letters are represented by binary numbers using ...... codes.
ASCII, which stands for American Standard Code for Information Interchange.
What is the common name for IEEE 1394?
Why are internal hard disks faster than external ones?
The internal bus speed is faster than any externally accessible port can provide.
Which type of hard disk interface cable is a wide ribbon?
Parallel ATA (PATA)
EIDE is a synonym for which type of hard disk: PATA, SATA, or SCSI?
RAID ...... combines multiple drives to form one large drive. It offers faster disk access than a single volume because more read/write heads are working at once.
What does CHS stand for, and what type of device does it help describe?
Cylinders, heads, and sectors. CHS describes the drive geometry of a hard disk.
True or false: high-level formatting is done within the operating system for a hard disk.
True or false: each hard disk must have at least one primary partition in order to work with an operating system.
When you partition a hard disk, it creates a(n) ...... that contains information about each partition and logical drive. The OS looks to it to determine what drive letters you have.
Master boot record (MBR)
Sectors are grouped into ...... , and the operating system addresses them by those units rather than by individual sector.
Clusters, or allocation units
What is the capacity of a single-sided, double-layer DVD?
What is the capacity of a CD-ROM
What is the capacity of a CD-R
What is the capacity of a CD-RW
What is the capacity of a DVD-ROM
What is the capacity of a DVD-R
What is the capacity of a DVD-RW
What is the capacity of a DVD+RW
...... are similar to DVDs but hold more data.
True or false: a flash drive stores data in memory rather than on a disk.
Name two types of flash memory cards.
Any two of these: CompactFlash, SmartMedia, MultiMedia Card, Secure Digital, Memory Stick, and xD
True or false: a solid-state hard drive contains no spinning platters.