Terms in this set (117)
Two major types of system software programs.
Utility programs and the operating system
The ____ of the operating system enables users to communicate with the computer system.
OS X is the operating system developed by _____?
NOT a network operating system
UNIX developed by Ken Thompson and Dennis Richie, who worked where?
AT and T's Bell Labs
Operating system used by supercomputers
Operating system used on tablets
Android and iOS
Operating system used by smartphones
Google and Apple
Operating system used by desktop and labtops
accounts for easy access and storage of online files (used by Windows 8)
Latest version of Mac OS X
NOT a user interface
GUI (Graphical user interface)
using hard disk space to temporarily store data or instructions from RAM
enables the device and operating system to communicate with each other (each device connected to computer comes with this program)
First step in boot process
BIOS is activated
basic input/output system (BOIS) is stored on
top level directory
ex; C: top of the filing structure of a computer
(Windows 8 File explorer) view that provides most info at a glance
CANT be used in OS X file name
location of a file
arranges pieces of files on your hard drive to allow for faster access
removes redundancies in a file to reduce the file size.
Windows Task Manager
check on a nonresponsive program
backup utility, Mac OS X includes
Gaming consoles DO need an operating system.
A personal computer CAN have more then one operating system installed on it.
Computer runs out of RAM it DOES NOT borrow from CPU
CMOS is NOT a special kind of memory that uses a great deal of power
the operating system processes higher- priority tasks before lower-priority tasks.
File names in Windows is NOT case-sensitive
rule of thumb that predicts the CPU capacity will double every 2 years
Processor market for desktop and laptops is dominated by_____?
Does NOT determine processor power
Speed of the motherboard
Activity carried out by the ALU
Perform arithmetic calculations
NOT a part of the machine cycle
CPU consists of two parts
The control unit and the arithmetic logic unit
Control unit is one component of the ______
running the CPU at a faster speed than the manufacturer recommends
There are _____ levels of cache memory
provides high speed info processing by enabling a new set of instructions to start before the previous set is finished.
Speed level of cache memory is impacted by
the chips proximity of the CPU
RAM is an example of ________ storage
measure in _______
Type used in current systems?
monitors which application you frequently use and preloads them into your system memory.
Referring to hard drives, access time is measure in _________
uses electronic memory and has no motors or moving parts
optical disc with greatest storage capacity?
NOT an optical disc format
________ has the largest capacity of any storage device?
Mechanical hard drive
NOT used to connect to a video card?
_______ is installed on video cards to speed up display of graphics
enables the computer to drive the speaker system
In Dolby Digital 7.1 the 1 =
Disk defragmentor utility
will make the hard drive work efficiently
Disk cleanup utility
quick way to clear out unnecessary files
(Windows) Refresh Utility
returns your computer to the state it was in when it came from the factory.
To securely erase data, the US Department of Defense suggest that the data be overwritten _______ times
Multiple cores on one CPU chip allows the execution of 2 or more sets of instructions at the same time.
Cache memory is NOT a form of ROM
Level 1 cache contains least amount of storage.
Faster to access data from hard drive by sending to CPU
Optical discs store data using tiny pits and lands.
Video cards include their own RAM
RAID 0 does NOT auto duplicate your data and save it to 2 identical drives
Thunderbolt can NOT carry 3 channels of info to same connector.
is 2 or more computers connected using software and hardware so that they can communicate with each other
device connected to a network such as a printer or game console.
actual speed of data transfer that is achieved and is always less than or = to the data transfer rate.
NOT used to classify network architectures
Speed of the network
max speed data can be transferred between two nodes.
network located in home that connects to all your digital devices
network spans a large physical distance
network designed to provide access to specific geographic area, such as large city.
transmission medium that transmits data the fastest
Normal telephone cable is a type of _____
client/server network is an ex) of_____
P2P network is an ex) of
Fastest version of wireless Ethernet
Cable NOT used in wired networks
NOT a type of UTP cable used in wired Ethernet
UTP (unshielded twisted-pair)
most popular transmission media option for wired Ethernet networks.
Wireless network devices use ______ to communicate with each other
network adapter (each nodes needs this)
for nodes on a network to communicate with each other and access the network.
switch (on a network)
helps prevent data packets from colliding with each other
Sophisticated networks use ________ to ease the flow of data through the network
Routers and Switches
to transfer data packets between two or more networks.
data are sent through a network in bundles
Does NOT support P2P
Network operating system (NOS)
client/server network controlled by a central server that runs specialized software.
facilitates file sharing and data backup
using a network without the network owner's permission.
-P2P, one computer does NOT act as a central computer
-it IS most common on home networks
-does NOT need operating system software installed on every node
Current Ethernet in US is NOT based on IEEE 802.11ac
Ethernet networks are NOT always connected twisted pair cable tech.
Most popular transmission media option for wired Ethernet networks
Router does NOT act as traffic sign
WEP NOT stronger form of security than WPA
Form 1 3D printer founders used crowfunding site _______ to ask for $100,000 in pledges
use of a single unifying device that handles media, internet, entertainment, and telephone needs.
operating system for mobile devices
operating system of cell is stored in ______?
primary input devices for smartphones
microphone and touch pad
online store that delivers software for Android devices
Analog-to-digital converter chip
converts sound waves from a voice into digital signal
Digital signal processor chip
in cells, to handle the compression of data for it to be quickly transmitted to another phone.
uses radio waves to transmit data signals over short distances.
Many mobile devices include a micro _____ port
Text messaging also called
limited to _____ characters
short message service (SMS)
Multimedia message service (MMS)
can send photos and videos
internet connectivity plan
global positioning system is a network of 21 _____ + 3 spares
distance between two near field communication (NFC) devices is limited to
in US, ebooks account for ____ of book sales
digital textual info that can be stored, manipulated and transmitted by electronic devices
Digital rights management
allows only limited use of media that have been legally purchased
number of times an analog wave is measured each second during an analog to digital conversion
digital image format compresses the image file