The VHSIC Hardware Description Language (VHDL) provides a standard machine processable notation for describing hardware. VHDL is the result of a collaborative effort between IBM, Intermetrics, and Texas Instruments; sponsored by the Very High Speed Integrated Cir cuits (VHSIC) program office of the Department of Defense, beginning in 1981. Today it is an IEEE standard (1076-1987), and several simulators and other automated support tools for it are available commercially. By providing a standard notation for describing hardware, especially in the early stages of the hardware design process, VHDL is expected to reduce both the time lag and the cost involved in building new systems and upgrading existing ones. VHDL is the result of an evolutionary approach to language devel opment starting with high level hardware description languages existing in 1981. It has a decidedly programming language flavor, resulting both from the orientation of hardware languages of that time, and from a ma jor requirement that VHDL use Ada constructs wherever appropriate. During the 1980's there has been an increasing current of research into high level specification languages for systems, particularly in the software area, and new methods of utilizing specifications in systems de velopment. This activity is worldwide and includes, for example, object oriented design, various rigorous development methods, mathematical verification, and synthesis from high level specifications. VAL (VHDL Annotation Language) is a simple further step in the evolution of hardware description languages in the direction of applying new methods that have developed since VHDL was designed."

Describing and designing complex electronic systems has become an overwhelming activit)' for which VHDL is showing increasingly useful and promising support. Although created as a description language. VHDL is being increasingly used as a simulatable and synthcsizablcdcsign language. For the first time, here is abook which describesa number of unique and powerful ways VHDL can be used to solve typical design problems in systems ** ones which must be designed correctly in vcry short periodsoflime. Typically useful lcchniquessuch as switch-level modeling, mixed analog and digital modelling, and advanced synthesis for which VHDL showsgrealpromisearefully presented. Thesemeth* ods are bOlh immedial.ely applicable. and indicale lIle potential of VHDL in efficiently modelling Ihe real worldofelectronic systems. Sinceitsinception.there hasbeen adesireforananalogdescription languageconsistent with (and integrated with) VHDL. Until recently. VHDL could onl)' be applied to digital circuits.ootlhedreamofdescribingandsimulatingmixedanalogand digitalcircuitsis now a reality as described herein. Describing the functionality of analog circuits including intetoperability with digital circuits using the VHDL paradigm is surprisingly easy and powerful. The approach outlined by the authors presages a significant advance in the simulation of mixed systems.

This title was first published in 2002. In State socialist societies, informal economies were essential for the functioning of the economy as well as for household provision. Since the beginning of social transformation they have been flourishing better than ever before. They are a main outlet on the market for the newly emerging middle classes, stabilize the situation of many workers and pensioners, and in countries on the downward slope they are essential for the survival of large impoverished groups. Presenting recent research on the social importance of informal economies, especially in Bulgaria, Hungary, Romania and Russia, the editors give a short introduction for each country, and a common compilation of basic economic and social data follows in the appendix. Household strategies in the 'shadow', groups of informal winners and losers, informal employment in town and countryside, outcomes from informal activities, the macro-economic importance of informal economies, and researching methods are all investigated.

This title was first published in 2002. In State socialist societies, informal economies were essential for the functioning of the economy as well as for household provision. Since the beginning of social transformation they have been flourishing better than ever before. They are a main outlet on the market for the newly emerging middle classes, stabilize the situation of many workers and pensioners, and in countries on the downward slope they are essential for the survival of large impoverished groups. Presenting recent research on the social importance of informal economies, especially in Bulgaria, Hungary, Romania and Russia, the editors give a short introduction for each country, and a common compilation of basic economic and social data follows in the appendix. Household strategies in the 'shadow', groups of informal winners and losers, informal employment in town and countryside, outcomes from informal activities, the macro-economic importance of informal economies, and researching methods are all investigated.

This book describes and quantifies the major socioeconomic changes that have occurred in four new member states of the EU (Slovenia, Hungary, Romania and Bulgaria) since the early 1990s. The period covered was a particularly turbulent one, not only because of the transition process which was well underway but becase of the stablization packages and other economic, monetary and social policy measures, which have had a strong impact at individual and household levels. While previous comparable studies have been carried out, they cover the period only to the mid 1990s, thus this book contains unique and very valuable statistical and micro data. Within the broad framework of socioeconomic change, a number of topics are explored in greater detail. These include changes in activity, occupational status and educational attainment, household income sources and income inequality, and risk of income poverty. The analysis is based on household budget surveys and complemented with other statistical sources, enabling a coherent analysis of the impact of large changes in social policy at household level. The country chapters are all based on common methodological guidelines enabling comparisons to be drawn. This will be an invaluable book for researchers in comparative social policy, poverty and social stratification and economic sociology, and for specialists on Central and Eastern Europe.

Describing and designing complex electronic systems has become an overwhelming activit)' for which VHDL is showing increasingly useful and promising support. Although created as a description language. VHDL is being increasingly used as a simulatable and synthcsizablcdcsign language. For the first time, here is abook which describesa number of unique and powerful ways VHDL can be used to solve typical design problems in systems ** ones which must be designed correctly in vcry short periodsoflime. Typically useful lcchniquessuch as switch-level modeling, mixed analog and digital modelling, and advanced synthesis for which VHDL showsgrealpromisearefully presented. Thesemeth* ods are bOlh immedial.ely applicable. and indicale lIle potential of VHDL in efficiently modelling Ihe real worldofelectronic systems. Sinceitsinception.there hasbeen adesireforananalogdescription languageconsistent with (and integrated with) VHDL. Until recently. VHDL could onl)' be applied to digital circuits.ootlhedreamofdescribingandsimulatingmixedanalogand digitalcircuitsis now a reality as described herein. Describing the functionality of analog circuits including intetoperability with digital circuits using the VHDL paradigm is surprisingly easy and powerful. The approach outlined by the authors presages a significant advance in the simulation of mixed systems.

The VHSIC Hardware Description Language (VHDL) provides a standard machine processable notation for describing hardware. VHDL is the result of a collaborative effort between IBM, Intermetrics, and Texas Instruments; sponsored by the Very High Speed Integrated Cir cuits (VHSIC) program office of the Department of Defense, beginning in 1981. Today it is an IEEE standard (1076-1987), and several simulators and other automated support tools for it are available commercially. By providing a standard notation for describing hardware, especially in the early stages of the hardware design process, VHDL is expected to reduce both the time lag and the cost involved in building new systems and upgrading existing ones. VHDL is the result of an evolutionary approach to language devel opment starting with high level hardware description languages existing in 1981. It has a decidedly programming language flavor, resulting both from the orientation of hardware languages of that time, and from a ma jor requirement that VHDL use Ada constructs wherever appropriate. During the 1980's there has been an increasing current of research into high level specification languages for systems, particularly in the software area, and new methods of utilizing specifications in systems de velopment. This activity is worldwide and includes, for example, object oriented design, various rigorous development methods, mathematical verification, and synthesis from high level specifications. VAL (VHDL Annotation Language) is a simple further step in the evolution of hardware description languages in the direction of applying new methods that have developed since VHDL was designed."

This book describes and quantifies the major socioeconomic changes that have occurred in four new member states of the EU (Slovenia, Hungary, Romania and Bulgaria) since the early 1990s. The period covered was a particularly turbulent one, not only because of the transition process which was well underway but becase of the stablization packages and other economic, monetary and social policy measures, which have had a strong impact at individual and household levels. While previous comparable studies have been carried out, they cover the period only to the mid 1990s, thus this book contains unique and very valuable statistical and micro data. Within the broad framework of socioeconomic change, a number of topics are explored in greater detail. These include changes in activity, occupational status and educational attainment, household income sources and income inequality, and risk of income poverty. The analysis is based on household budget surveys and complemented with other statistical sources, enabling a coherent analysis of the impact of large changes in social policy at household level. The country chapters are all based on common methodological guidelines enabling comparisons to be drawn. This will be an invaluable book for researchers in comparative social policy, poverty and social stratification and economic sociology, and for specialists on Central and Eastern Europe.