4-letter words containing 2
- 1802 — (processor) An 8-bit microprocessor manufactured as CDP1802 by HARRIS Semiconductor. It has been around for ten years at least and is ideally suited for embedded applications. Some of its features are: 8-bit parallel organisation with bidirectional data bus and multiplexed address bus; static design -- no minimum clock rate; bit-programmable output port; four input pins which are directly tested by branch instructions; flexible programmable I/O mode; single-phase clock, with on-chip oscillator; 16 x 16 register matrix to implement multiple program counters, pointers, or registers
- 2780 — Binary Synchronous Transmission
- 2b1d — Basic Rate Interface
- 2b1q — two-binary, one-quaternary
- 3270 — IBM 3270
- 6502 — (hardware) An eight-bit microprocessor designed by MOS Technology around 1975 and made by Rockwell. Unlike the Intel 8080 and its kind, the 6502 had very few registers. It was an 8-bit processor, with 16-bit address bus. Inside was one 8-bit data register (accumulator), two 8-bit index registers and an 8-bit stack pointer (stack was preset from address 256 to 511). It used these index and stack registers effectively, with more addressing modes, including a fast zero-page mode that accessed memory locations from address 0 to 255 with an 8-bit address (it didn't have to fetch a second byte for the address). Back when the 6502 was introduced, RAM was actually faster than CPUs, so it made sense to optimise for RAM access rather than increase the number of registers on a chip. The 6502 was used in the BBC Microcomputer, Apple II, Commodore, Apple Computer and Atari personal computers. Steve Wozniak described it as the first chip you could get for less than a hundred dollars (actually a quarter of the 6800 price). The 6502's indirect jump instruction, JMP (xxxx), was broken. If the address was hexadecimal xxFF, the processor would not access the address stored in xxFF and xxFF + 1, but rather xxFF and xx00. The 6510 did not fix this bug, nor was it fixed in any of the other NMOS versions of the 6502 such as the 8502. Bill Mensch at Western Design Center was probably the first to fix it, in the 65C02. The 6502 also had undocumented instructions. The 65816 is an expanded version of the 6502. There is a 6502 assembler by Doug Jones <[email protected]> which supports macros and conditional features and can be used for linkage editing of object files. It requires Pascal. See also cross-assembler, RTI, Small-C.
- 8052 — Intel 8051
- 8250 — (hardware) A UART that can operate at a maximum of 9600 baud. The 8250 is used in IBM PC XT computers. It works in an IBM PC AT under DOS but generates unwanted interrupts when used at 9600 baud. The IBM PC BIOS has a bug fix for this chip.
- act2 — (language) An actor language.
- apl2 — (language) An APL extension from IBM with nested arrays.
- b-29 — Superfortress.
- e2es — end-to-end solution
- hsv2 — either of two herpes diseases caused by a herpesvirus that infects humans and some other animals and produces small, transient blisters on the skin or mucous membranes, one type of virus (herpes simplex virus type 1, or HSV-1) usually associated with oral herpes but also causing genital herpes and the other (herpes simplex virus type 2, or HSV-2) usually causing genital herpes.
- ia32 — (architecture) The processor chip architecture and instruction set used by Intel in its Pentium processors.
- j2ee — Java 2 Platform, Enterprise Edition
- j2me — Java 2 Platform, Micro Edition
- j2se — Java 2 Platform, Standard Edition
- jes2 — (operating system) One of IBM's job entry systems for MVS.
- k-12 — K-12 education is education for children from kindergarten through twelfth grade.
- l 12 — mutual inductance
- l2tp — Layer Two Tunneling Protocol
- lt-2 — An early system on the IBM 701.
- obj2 — Clear-like parametrised modules. A functional system based on equations. "Principles of OBJ2", K. Futatsugi et al, 12th POPL, ACM 1985, pp.52-66.
- pdl2 — (language) Process Design Language 2.
- psl2 — the amount of money in circulation given by M4 plus building-society deposits
- r2rs — A revision of RRS, itself revised in R3RS.
- sac2 — (mathematics, tool) A symbolic mathematics system which compiles to Fortran or Common Lisp. E-mail: <[email protected]>.
- so 2 — An early system on IBM 701.
- sql2 — (database, standard, language) An extended version of the SQL standard.
- v.21 — (protocol, standard) An ITU-T modem protocol for 300 bps two-wire full-duplex communications using Frequency Shift Keying modulation. All modern modems support both V.21 and the close variant, Bell 103.
- v.22 — (protocol, standard) An ITU-T modem protocol which allowed data rates of 1200 bps. V.22bis doubled this.
- v.23 — (protocol, standard) An ITU-T modem protocol which allowed half-duplex (unidirectional) data transmission at 1200 bits per second with a 75 bps back channel and fall back to 600/75 bps. This was the main standard used for British Telecom's Prestel service.
- v.24 — (standard) The ITU-T standard defining interchange circuits between DTE and DCE. V.24 is the ITU-T equivalent of EIA standard EIA-232C, though V.24 only specifies the meaning of the signals, not the connector or the voltages used. V.24 recommends 12 modem carrier frequencies that will not interfere with Dual Tone Multi-Frequency or other telephone control tones. These are: GROUP A = 920 Hz, 1000 Hz, 1080 Hz, 1160 Hz GROUP B = 1320 Hz, 1400 Hz, 1480 Hz, 1560 Hz Group C = 1720 Hz, 1800 Hz, 1880 Hz, 1960 Hz (2004-08-02)
- v.25 — (communications, standard) A standard allowing an auto-answer modem to determine the correct modulation standard to use.
- v.28 — (communications, standard) An ITU-T physical interface standard for serial data communications equipment, formally titled "Electrical Characteristics for Unbalanced Double-Current Interchange Circuits". The combination of V.28 and V.24 is equivalent to the EIA's RS-232 and uses the same 25-pin connectors.
- v.29 — (communications, standard) An ITU-T modem protocol which allows 9600 bps half duplex or four wire communications with fall back to 7200 bps and 4800 bps. V.29 is used by fax machines.
- v.32 — (communications, standard) An ITU-T standard protocol for modems transmitting at 9600 bits per second with fall back to 4800 bps. V.32bis extended this to 14400 bps. V32 and V.32bis acheive bidirectional data transmission not by having different sets of tones at each end but by subtracting what is sent from what is received.
- v.42 — (communications, standard) An ITU-T standard protocol for error correction between modems, which includes MNP up to level 4 and asynchronous to synchronous conversion.
- x.12 — (standard) The American equivalent of UN/EDIFACT and various other national and industry EDI messaging protocols. The first Y2K ready version of X.12 is version 4010.
- x.21 — (communications, standard) A digital signaling interface recommended by ITU-T that includes specifications for DTE/DCE physical interface elements, alignment of call control characters and error checking, elements of the call control phase for circuit switched services, data transfer at up to 2 Mbps, and test loops. 64 kbps is the most commonly used transfer rate.
- x.25 — (protocol, standard) An ITU-T standard protocol suite for the DTE-DCE interface in a packet-switched network, approved by ISO. X.25 defines standard physical layer, data link layer and network layers (layers 1 through 3). It was developed to describe how data passes into and out of public data communications networks. X.25 networks are in use throughout the world. Document: ISO 8208. Several other ITU-T recommendations are relevant to packet switching: X.3, X.28, X.29, X.75.
- x.28 — The ITU-T standard specifying how to control a PAD from character-mode DTE, approved by ISO.
- x.29 — The ITU-T standard, approved by ISO, specifying procedures for the exchange of control information and user data between a PAD and a remote packet-mode DTE. Character-mode DTEs are often referred to as X.29 terminals.
On this page, we collect all 4-letter words with letter 2. It’s easy to find right word with a certain length. It is the easiest way to find 4-letter word that contains 2 to use in Scrabble or Crossword puzzles.